This page lists 401 engine parts for the 2005 Buick Park Avenue, across 79 part types, covering both the 3.8L V6 and the 3.8L V6 Supercharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2005 Buick Park Avenue, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. 70 parts of the 401 listed are Oil (30 parts), Crankshaft Seal (20 parts) and Oil Filter (20 parts). The other 76 part types cover the remaining 331 parts.
The 2005 Buick Park Avenue was sold with both the 3.8L V6 and the 3.8L V6 Supercharged. 6 parts fit every engine; the other 395 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2005 Buick Park Avenue engine parts are MAHLE / CLEVITE (34 parts), GM GENUINE (31 parts) and ENGINETECH (27 parts), plus 65 more brands. Quality grades include Standard Replacement, Economy and High Performance / Heavy Duty.
72 parts on this 2005 Buick Park Avenue page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including INA ZS2551 (Balance Shaft Sprocket) and DURA-BOND B14 (Camshaft Bearing). Click any part number to see every vehicle that part fits.
Balance Shaft Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: all 2005 Park Avenue engines | SH1798S | 🇺🇸 US 🇨🇦 CA | Full Set | View on Amazon |
This table covers the Balance Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
One part is listed for the 2005 Buick Park Avenue — MAHLE / CLEVITE SH1798S.
Balance Shaft Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| INA Popular Fits: all 2005 Park Avenue engines | ZS2551 | 🇺🇸 US 🇨🇦 CA | DrivenL27, L36 Engine | View on Amazon |
| CLOYES Fits: all 2005 Park Avenue engines | 2551 | 🇺🇸 US 🇨🇦 CA | Balance Shaft Gear | View on Amazon |
| CLOYES Fits: all 2005 Park Avenue engines | 2558 | 🇺🇸 US 🇨🇦 CA | Balance Shaft Gear | View on Amazon |
| INA Fits: all 2005 Park Avenue engines | ZS2558 | 🇺🇸 US 🇨🇦 CA | DriverL27, L36 Engine | View on Amazon |
| S.A. GEAR Fits: all 2005 Park Avenue engines | 2551 | 🇺🇸 US 🇨🇦 CA | DrivenL27, L36 Engine | View on Amazon |
This table covers the Balance Shaft sprockets.
5 Balance Shaft Sprocket parts for the 2005 Buick Park Avenue come from 3 brands — INA, CLOYES and S.A. GEAR. The "Popular" part is INA ZS2551. Every part fits both the 3.8L V6 and the 3.8L V6 Supercharged.
Part numbers include INA ZS2551, CLOYES 2551 and CLOYES 2558, among others listed above.
Camshaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Fits: 3.8L V6 | ES1541 | 🇺🇸 US | Engine VIN Code 2,KUse roller followers | View on Amazon |
This table covers the camshafts that open the valves.
This group shows a single part: ENGINETECH ES1541.
Camshaft Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Popular Fits: 3.8L V6 | B14 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| ENGINETECH Popular Fits: 3.8L V6 | CC421 | 🇺🇸 US | Full Set | View on Amazon |
| DURA-BOND Fits: 3.8L V6 | B14R | 🇺🇸 US 🇨🇦 CA | (+.025 OD) | View on Amazon |
| KING ENGINE BEARINGS Fits: 3.8L V6 | CS4401BB | 🇺🇸 US 🇨🇦 CA | Bi-Metal (Babbitt) | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | SH1812S | 🇺🇸 US 🇨🇦 CA | Full Set | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | 1889M | 🇺🇸 US 🇨🇦 CA | 2nd DesignPosition 1 and 5 Housing Bore 2.3460 IN 2.3480 IN | View on Amazon |
This table covers the Camshaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
6 Camshaft Bearing parts for the 2005 Buick Park Avenue come from 5 brands — DURA-BOND, ENGINETECH, KING ENGINE BEARINGS and 2 other brands. The "Popular" part is DURA-BOND B14.
Part numbers include DURA-BOND B14, ENGINETECH CC421 and DURA-BOND B14R, among others listed above.
Camshaft Retainer / Thrust Plate
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER Fits: 3.8L V6 | PG801 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Camshaft Retainer / Thrust plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.
One part is listed for the 2005 Buick Park Avenue — PIONEER PG801.
Connecting Rod
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Fits: 3.8L V6 | ECR308 | 🇺🇸 US | Reconditioned | View on Amazon |
This table covers the connecting rods between each piston and the crankshaft.
This group shows a single part: ENGINETECH ECR308.
Connecting Rod Bearing
High Performance
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KING ENGINE BEARINGS Fits: 3.8L V6 | CR6664XP | 🇺🇸 US 🇨🇦 CA | PmaxblackSet | View on Amazon |
| KING ENGINE BEARINGS Fits: 3.8L V6 | CR6664XPX | 🇺🇸 US 🇨🇦 CA | PmaxblackSet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Popular Fits: 3.8L V6 | BB624J | 🇺🇸 US | Set | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 3.8L V6 | CB1443A | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Pair | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 3.8L V6 | CB1443A6 | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Set | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 89017700 | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
| KING ENGINE BEARINGS Fits: 3.8L V6 | CR6664SI | 🇺🇸 US 🇨🇦 CA | BI-Metal (aluminum silicon base)Set | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | CB1806A | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Pair | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | CB1806A6 | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Set | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | 3760A | 🇺🇸 US 🇨🇦 CA | A-Series aluminum bearings | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | 63760A | 🇺🇸 US 🇨🇦 CA | SetA-Series aluminum bearings | View on Amazon |
This table covers the bearings in the connecting-rod big ends. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
11 Connecting Rod Bearing parts for the 2005 Buick Park Avenue come from 5 brands — MAHLE / CLEVITE, KING ENGINE BEARINGS, SEALED POWER and 2 other brands. The "Popular" part is ENGINETECH BB624J.
The High Performance section lists 2 options from KING ENGINE BEARINGS — engineered beyond original-equipment specification. KING ENGINE BEARINGS CR6664XP is listed in this group.
In the Standard Replacement grade, MAHLE / CLEVITE, SEALED POWER, ENGINETECH and 2 other brands supply 9 parts: built to original-equipment specification. A representative part number is ENGINETECH BB624J.
Connecting Rod Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 11610158 | 🇺🇸 US 🇨🇦 CA | MJ9X1X43 | View on Amazon |
This table covers the Connecting Rod bolts.
One part is listed for the 2005 Buick Park Avenue — GM GENUINE 11610158.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Popular Fits: 3.8L V6 | B38CSC | 🇺🇸 US | Engine VIN code K2nd | View on Amazon |
| FEL-PRO Popular Fits: 3.8L V6 | CS99174 | 🇺🇸 US 🇨🇦 CA | Includes RTV SealantIncludes Perma DryPlus Timing Cover Gasket | View on Amazon |
| APEX Fits: 3.8L V6 | ACS3143 | 🇺🇸 US 🇨🇦 CA | 2nd Des. Engine. Block Casting # 12585793 | View on Amazon |
| ELRING Fits: 3.8L V6 | 696820 | 🇺🇸 US 🇨🇦 CA | with Crankshaft Seal | View on Amazon |
| ENGINETECH Fits: 3.8L V6 | B38CSB | 🇺🇸 US | Engine VIN code K1st | View on Amazon |
| FEL-PRO Fits: 3.8L V6 | CS99172 | 🇺🇸 US 🇨🇦 CA | RTV not included for Grooved Oil PanIncludes Permadry Molded Rubber Oil Pan Gasket(s), Permadryplus Timing Cover Gasket | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | CS5912C | 🇺🇸 US 🇨🇦 CA | Contains RTV f | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | CS5912B | 🇺🇸 US 🇨🇦 CA | with Block Casting # 245060291st Design | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 081093401 | 🇺🇸 US 🇨🇦 CA | Casting # 125857932nd Design | View on Amazon |
This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
9 Conversion / Lower Gasket Set parts for the 2005 Buick Park Avenue come from 6 brands — ENGINETECH, FEL-PRO, MAHLE / CLEVITE and 3 other brands. The "Popular" part is ENGINETECH B38CSC.
Listed part numbers: ENGINETECH B38CSC, FEL-PRO CS99174 and APEX ACS3143, plus the other parts above.
Crankshaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Fits: 3.8L V6 | 104000 | 🇺🇸 US | Includes Connecting Rod Bearings & Crankshaft Main BearingsReman | View on Amazon |
This table covers the crankshafts that turn piston motion into rotation.
This group shows a single part: ENGINETECH 104000.
Crankshaft Main Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Popular Fits: 3.8L V6 | BC455J | 🇺🇸 US | Set | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 3.8L V6 | MS2022P | 🇺🇸 US 🇨🇦 CA | P Series (Tri-Metal)Set | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 89017698 | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
| KING ENGINE BEARINGS Fits: 3.8L V6 | MB4017SI | 🇺🇸 US 🇨🇦 CA | BI-Metal (aluminum silicon base)Set | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | MS2022A | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Set | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | 7288MA | 🇺🇸 US 🇨🇦 CA | SetA-Series aluminum bearings | View on Amazon |
This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
6 Crankshaft Main Bearing parts are listed for the 2005 Buick Park Avenue, from MAHLE / CLEVITE, ENGINETECH, GM GENUINE and 2 other brands. ENGINETECH BC455J carries the "Popular" badge.
Part numbers include ENGINETECH BC455J, MAHLE / CLEVITE MS2022P and GM GENUINE 89017698, among others listed above.
Crankshaft Main Bearing Cap Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 24503056 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Crankshaft Main Bearing Cap bolts.
This group shows a single part: GM GENUINE 24503056.
Crankshaft Main Bearing Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VICTOR REINZ Fits: 3.8L V6 | 711348200 | 🇺🇸 US 🇨🇦 CA | CRANKSHAFT | View on Amazon |
This table covers the wear sleeves used to restore a Crankshaft Main Bearing seal surface.
This group shows a single part: VICTOR REINZ 711348200.
Crankshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Popular Fits: 3.8L V6 | KWK99193 | 🇺🇸 US 🇨🇦 CA | Kwik-Sleeve | View on Amazon |
| WJB / INMOTION PARTS Popular Fits: 3.8L V6 | WS99193 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| FEL-PRO Fits: 3.8L V6 | 16276 | 🇺🇸 US 🇨🇦 CA | RearUse with Installation tool | View on Amazon |
| SCHAEFFLER Fits: 3.8L V6 | SR3509 | 🇺🇸 US 🇨🇦 CA | Frontwith 1.938 In Shaft | View on Amazon |
| SKF Fits: 3.8L V6 | 99328 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| TIMKEN Fits: 3.8L V6 | KWK99328 | 🇺🇸 US 🇨🇦 CA | Kwik-Sleeve | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L V6 | WS99328 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
This table covers the sleeves used to restore a grooved crankshaft seal surface.
7 Crankshaft Repair Sleeve parts are listed for the 2005 Buick Park Avenue, from TIMKEN, WJB / INMOTION PARTS, FEL-PRO and 2 other brands. TIMKEN KWK99193 carries the "Popular" badge.
This group includes TIMKEN KWK99193, WJB / INMOTION PARTS WS99193 and FEL-PRO 16276 and the remaining parts above.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.8L V6 | BS40708 | 🇺🇸 US 🇨🇦 CA | PTFE RubberIncludes Sleeve | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | 12582313 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | 12582320 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| NATIONAL Popular Fits: 3.8L V6 | 710162 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| APEX Fits: 3.8L V6 | ABS360 | 🇺🇸 US 🇨🇦 CA | Rear1st Design Engine. Block Casting # 24506029 | View on Amazon |
| BCA Fits: 3.8L V6 | NS710162 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| FEL-PRO Fits: 3.8L V6 | BS40190 | 🇺🇸 US 🇨🇦 CA | Rubber | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | JV1723 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| NATIONAL Fits: 3.8L V6 | 320691 | 🇺🇸 US 🇨🇦 CA | RearRadial Seal | View on Amazon |
| SCHAEFFLER Fits: 3.8L V6 | SS4494 | 🇺🇸 US 🇨🇦 CA | Front2.75" O.D. X 0.31" Width | View on Amazon |
| SCHAEFFLER Fits: 3.8L V6 | SS3878 | 🇺🇸 US 🇨🇦 CA | Rear3.93" O.D. X 0.5" Width | View on Amazon |
| SKF Fits: 3.8L V6 | 32289 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| TIMKEN Fits: 3.8L V6 | 320691 | 🇺🇸 US 🇨🇦 CA | RearStandard | View on Amazon |
| TIMKEN Fits: 3.8L V6 | 5291 | 🇺🇸 US 🇨🇦 CA | RearHeavy Duty | View on Amazon |
| TIMKEN Fits: 3.8L V6 | 710162 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 191011801 | 🇺🇸 US 🇨🇦 CA | SetSealing Surface Material: Molded Rubber and Metal | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 191003501 | 🇺🇸 US 🇨🇦 CA | PTFESet | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L V6 | WS320691 | 🇺🇸 US 🇨🇦 CA | RearRadial Seal | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L V6 | WS710162 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L V6 | WS5291 | 🇺🇸 US 🇨🇦 CA | PTFE Rubber Material | View on Amazon |
This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
20 Crankshaft Seal parts are listed for the 2005 Buick Park Avenue, from TIMKEN, WJB / INMOTION PARTS, FEL-PRO and 8 other brands. FEL-PRO BS40708 carries the "Popular" badge.
Crankshaft Seal Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 24507388 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
This table covers the gaskets that seal the Crankshaft Seal. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
This group shows a single part: GM GENUINE 24507388.
Cylinder Head
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Fits: 3.8L V6 | CH1119R | 🇺🇸 US 🇨🇦 CA | RemanufacturedIncludes Valves and springs | View on Amazon |
| ENGINETECH Fits: 3.8L V6 | CH1120R | 🇺🇸 US | RemanufacturedIncludes Valves and springs | View on Amazon |
This table covers the cylinder heads that close the top of the block.
ENGINETECH supplies both parts for the 2005 Buick Park Avenue.
This group includes ENGINETECH CH1119R and ENGINETECH CH1120R.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Popular Fits: 3.8L V6 | AHB359 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 88891770 | 🇺🇸 US 🇨🇦 CA | Outer7/16-14X2.34IN | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | GS33363 | 🇺🇸 US 🇨🇦 CA | Cylinder Head Bolt KitSet | View on Amazon |
| SKP Fits: 3.8L V6 | SKHB141 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VICTOR REINZ Fits: 3.8L V6 | 141006401 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
5 Cylinder Head Bolt parts for the 2005 Buick Park Avenue come from 5 brands — APEX, GM GENUINE, MAHLE / CLEVITE and 2 other brands. The "Popular" part is APEX AHB359.
Listed part numbers: APEX AHB359, GM GENUINE 88891770 and MAHLE / CLEVITE GS33363, plus the other parts above.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.8L V6 | 9918PT | 🇺🇸 US 🇨🇦 CA | RightHead Bolts Must be Replaced | View on Amazon |
| FEL-PRO Popular Fits: 3.8L V6 | 9917PT | 🇺🇸 US 🇨🇦 CA | LeftHead Bolts Must be Replaced | View on Amazon |
| ULTRA-POWER Popular Fits: 3.8L V6 | 9918PT | 🇺🇸 US 🇨🇦 CA | Head Bolts Not Included | View on Amazon |
| APEX Fits: 3.8L V6 | AHG359L | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| APEX Fits: 3.8L V6 | AHG359R | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| ELRING Fits: 3.8L V6 | 697880 | 🇺🇸 US 🇨🇦 CA | LeftBody code: CW69 | View on Amazon |
| ELRING Fits: 3.8L V6 | 697940 | 🇺🇸 US 🇨🇦 CA | RightBody code: CW69 | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | 5912 | 🇺🇸 US 🇨🇦 CA | Graphite | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | 5913 | 🇺🇸 US 🇨🇦 CA | Graphite | View on Amazon |
| ULTRA-POWER Fits: 3.8L V6 | 9089PT | 🇺🇸 US 🇨🇦 CA | Head Bolts Not Included | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 611044000 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 611044100 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
This table covers the head gaskets that seal the block to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
12 Cylinder Head Gasket parts for the 2005 Buick Park Avenue come from 6 brands — FEL-PRO, ULTRA-POWER, APEX and 3 other brands. The "Popular" part is FEL-PRO 9918PT.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.8L V6 | HS9917PT3 | 🇺🇸 US 🇨🇦 CA | Includes Permadry Molded Rubber Valve Cover Gasket(s), Valve Stem Seals | View on Amazon |
| SKP Popular Fits: 3.8L V6 | SKHS9917PT | 🇺🇸 US 🇨🇦 CA | Includes Molded Rubber Valve Cover Gaskets, Valve Stem Seals | View on Amazon |
| APEX Fits: 3.8L V6 | AHS3059 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ELRING Fits: 3.8L V6 | 696790 | 🇺🇸 US 🇨🇦 CA | Includes Valve Stem Seals | View on Amazon |
| ENGINE PRO Fits: 3.8L V6 | 369917PT3 | 🇺🇸 US 🇨🇦 CA | Intake Manifold Gaskets with Rubber-Plastic End Seals with Locating pins | View on Amazon |
| ENGINETECH Fits: 3.8L V6 | B38HSBWB | 🇺🇸 US | Includes Head BoltsPlenum Gasket Not Included | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | HS5912C | 🇺🇸 US 🇨🇦 CA | Contains Premium Grade Intake Manifold GasketsIncludes Valve Stem Seals | View on Amazon |
| ULTRA-POWER Fits: 3.8L V6 | HS9089PT2 | 🇺🇸 US 🇨🇦 CA | Head Bolts Not IncludedIncludes Molded Rubber Valve Cover Gasket(s), Premium Valve Stem Seals | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 021055401 | 🇺🇸 US 🇨🇦 CA | 2nd DesignIntake Manifold Gaskets with Rubber-Plastic End Seals with Locating pins | View on Amazon |
This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
9 Cylinder Head Gasket Set parts for the 2005 Buick Park Avenue come from 9 brands — FEL-PRO, SKP, APEX and 6 other brands. The "Popular" part is FEL-PRO HS9917PT3.
Part numbers include FEL-PRO HS9917PT3, SKP SKHS9917PT and APEX AHS3059, among others listed above.
Cylinder Head Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.8L V6 | 565019 | 🇺🇸 US 🇨🇦 CA | Nominal Dia.: 1-1/8"Metric Dia. | View on Amazon |
| DORMAN Fits: 3.8L V6 | 570006 | 🇺🇸 US 🇨🇦 CA | Metric Size: 28mmMetric Range: 28mm - 31mm | View on Amazon |
This table covers the Cylinder Head plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.
DORMAN supplies both parts for the 2005 Buick Park Avenue.
This group includes DORMAN 565019 and DORMAN 570006.
Cylinder Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Fits: 3.8L V6 | ESL1101 | 🇺🇸 US | View on Amazon | |
| MELLING Fits: 3.8L V6 | CSL138 | 🇺🇸 US 🇨🇦 CA | 3/32 IN Wall Thickness | View on Amazon |
| MELLING Fits: 3.8L V6 | CSL138X | 🇺🇸 US 🇨🇦 CA | 3/64 IN Wall Thickness | View on Amazon |
| MELLING Fits: 3.8L V6 | CSL238 | 🇺🇸 US 🇨🇦 CA | 1/8 IN Wall Thickness | View on Amazon |
This table covers the wear sleeves used to restore a Cylinder seal surface.
4 Cylinder Repair Sleeve parts for the 2005 Buick Park Avenue come from 2 brands — MELLING and ENGINETECH.
Listed part numbers: ENGINETECH ESL1101, MELLING CSL138 and MELLING CSL138X, plus the other parts above.
Engine Block Heater
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KAT'S HEATERS Fits: 3.8L V6 | 11416 | 🇺🇸 US 🇨🇦 CA | Freeze Plug Heater | View on Amazon |
This table covers the block heaters that warm the coolant or oil in cold weather.
One part is listed for the 2005 Buick Park Avenue — KAT'S HEATERS 11416.
Engine Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO Fits: 3.8L V6 | GM1228115 | 🇺🇸 US 🇨🇦 CA | LowerCVR ENGINE UNDER | View on Amazon |
This table covers the Engine covers.
This group shows a single part: TECHPRO GM1228115.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 3.8L V6 | 50561700 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ENGINETECH Fits: 3.8L V6 | B38K4 | 🇺🇸 US | Kit Contains (1) Head Set, (1) Lower Set and (1) Plenum Set | View on Amazon |
| ENGINETECH Fits: 3.8L V6 | B38K2 | 🇺🇸 US | Kit contains (1) head Set, (1) lower Set & (1) plenum Set | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | 953665 | 🇺🇸 US 🇨🇦 CA | Contains RTV f | View on Amazon |
This table covers full gasket kits covering the joints opened in an engine rebuild. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
4 Engine Kit Gasket Set parts for the 2005 Buick Park Avenue come from 3 brands — ENGINETECH, AJUSA and MAHLE / CLEVITE.
Part numbers include AJUSA 50561700, ENGINETECH B38K4 and ENGINETECH B38K2, among others listed above.
Exhaust Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING Fits: 3.8L V6 | V1735 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| QUALCAST Fits: 3.8L V6 | 101735 | 🇺🇸 US 🇨🇦 CA | 1.520 Head Diameter. 0.313 Stem | View on Amazon |
| SBI Fits: 3.8L V6 | 01735 | 🇺🇸 US 🇨🇦 CA | Round Groovewith 5/16 Stem | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | V4557 | 🇺🇸 US 🇨🇦 CA | Chrome Plated StemSize | View on Amazon |
This table covers the exhaust valves that let combustion gas out of the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
4 Exhaust Valve parts are listed for the 2005 Buick Park Avenue, from MELLING, QUALCAST, SBI and 1 other brand.
Part numbers include MELLING V1735, QUALCAST 101735 and SBI 01735, among others listed above.
Expansion Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 555077 | 🇺🇸 US 🇨🇦 CA | SteelNominal Dia.: 38.25mm | View on Amazon |
| DORMAN Popular Fits: 3.8L V6 | 565077 | 🇺🇸 US 🇨🇦 CA | Nominal Dia.: 38.25mmMetric Dia. | View on Amazon |
| DORMAN Fits: 3.8L V6 | 555018 | 🇺🇸 US 🇨🇦 CA | Nominal Dia.: 25.73mm SCMetric Dia. | View on Amazon |
| DORMAN Fits: 3.8L V6 | 555029 | 🇺🇸 US 🇨🇦 CA | SteelNominal Dia.: 39.94mm | View on Amazon |
| DORMAN Fits: 3.8L V6 | 565029 | 🇺🇸 US 🇨🇦 CA | Nominal Dia.: 1-9/16"Metric Dia. | View on Amazon |
| MELLING Fits: 3.8L V6 | MPE843R | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| QUALCAST Fits: 3.8L V6 | 97151 | 🇺🇸 US 🇨🇦 CA | Steel | View on Amazon |
| QUALCAST Fits: 3.8L V6 | 97151B | 🇺🇸 US 🇨🇦 CA | Brass | View on Amazon |
This table covers the Expansion plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.
8 Expansion Plug parts for the 2005 Buick Park Avenue come from 3 brands — DORMAN, QUALCAST and MELLING. The "Popular" part is DORMAN 555077.
This group includes DORMAN 555077, DORMAN 565077 and DORMAN 555018 and the remaining parts above.
Harmonic Balancer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular Fits: 3.8L V6 | PB1434N | 🇺🇸 US 🇨🇦 CA | Premium | View on Amazon |
| ATP Fits: 3.8L V6 | 102055 | 🇺🇸 US 🇨🇦 CA | Double Serpentine | View on Amazon |
| ATP Fits: 3.8L V6 | 102284 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| PIONEER Fits: 3.8L V6 | DA2318 | 🇺🇸 US 🇨🇦 CA | Groove Quantity 6Double Serpentine | View on Amazon |
| PIONEER Fits: 3.8L V6 | DA7015 | 🇺🇸 US 🇨🇦 CA | Groove Quantity 6Serpentine | View on Amazon |
This table covers the crankshaft pulleys / harmonic balancers at the front of the engine.
5 Harmonic Balancer parts for the 2005 Buick Park Avenue come from 3 brands — ATP, PIONEER and DAYCO. The "Popular" part is DAYCO PB1434N.
This group includes DAYCO PB1434N, ATP 102055 and ATP 102284 and the remaining parts above.
Harmonic Balancer Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 24504736 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Harmonic Balancer bolts.
One part is listed for the 2005 Buick Park Avenue — GM GENUINE 24504736.
Intake & Exhaust Manifold Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 3.8L V6 | 13339300 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Intake & Exhaust Manifold gasket sets. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
This group shows a single part: AJUSA 13339300.
Intake Manifold
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 615180 | 🇺🇸 US 🇨🇦 CA | Includes Gasket | View on Amazon |
| FAMOUS BRAND Popular Fits: 3.8L V6 | 615180 | 🇺🇸 US 🇨🇦 CA | Fits Intake Manifold (Fuel Injected)UPPER | View on Amazon |
| ATP Fits: 3.8L V6 | 106001 | 🇺🇸 US 🇨🇦 CA | Includes Gasket | View on Amazon |
| AUTOTECNICA Fits: 3.8L V6 | CE1413044 | 🇺🇸 US 🇨🇦 CA | Upper | View on Amazon |
| LARES Fits: 3.8L V6 | 33346 | 🇺🇸 US 🇨🇦 CA | UpperOE # 12537425, 24506013, 89017272, 89017274 | View on Amazon |
| SKP Fits: 3.8L V6 | SK615180 | 🇺🇸 US 🇨🇦 CA | Upper | View on Amazon |
This table covers the Intake manifolds. Typical signs include an exhaust tick, a vacuum leak, or a gasket that has burned through. Replace the gaskets and hardware; a warped flange will leak with a new gasket alone.
6 Intake Manifold parts are listed for the 2005 Buick Park Avenue, from DORMAN, FAMOUS BRAND, ATP and 3 other brands. DORMAN 615180 carries the "Popular" badge.
Part numbers include DORMAN 615180 and ATP 106001, among others listed above.
Intake Manifold Gasket
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.8L V6 | MS98014T | 🇺🇸 US 🇨🇦 CA | SetIncludes Perma DryPlus Intake Manifold Gaskets | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 111056301 | 🇺🇸 US 🇨🇦 CA | Maxdry STL®Improved Design | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.8L V6 | MS958091 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 3.8L V6 | MIS16203A | 🇺🇸 US 🇨🇦 CA | Contains Premium Grade Intake Manifold GasketsMolded Rubber | View on Amazon |
| APEX Fits: 3.8L V6 | AMS3593 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| APEX Fits: 3.8L V6 | AMS3595P | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | MS006 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | MS16203A | 🇺🇸 US 🇨🇦 CA | SetMolded Rubber | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | MS20204 | 🇺🇸 US 🇨🇦 CA | Molded Rubber / SteelSet | View on Amazon |
| SKP Fits: 3.8L V6 | SKTCS459821 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 111059901 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
This table covers the gaskets between the intake manifold and the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
11 Intake Manifold Gasket parts for the 2005 Buick Park Avenue come from 6 brands — MAHLE / CLEVITE, FEL-PRO, VICTOR REINZ and 3 other brands. The "Popular" part is FEL-PRO MS98014T.
In the Premium grade, FEL-PRO and VICTOR REINZ supply 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is FEL-PRO MS98014T.
Standard Replacement: 9 parts, from MAHLE / CLEVITE, APEX, FEL-PRO and 3 other brands. A representative part number is FEL-PRO MS958091.
Intake Plenum Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 615207 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| FEL-PRO Popular Fits: 3.8L V6 | MS95812 | 🇺🇸 US 🇨🇦 CA | Upper | View on Amazon |
| APEX Fits: 3.8L V6 | AMS3590 | 🇺🇸 US 🇨🇦 CA | Upper | View on Amazon |
| ELRING Fits: 3.8L V6 | 697990 | 🇺🇸 US 🇨🇦 CA | Body code: CW69 | View on Amazon |
| ENGINETECH Fits: 3.8L V6 | IB231D | 🇺🇸 US | Engine VIN Code 2,KFWD | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 19434071 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 12573662 | 🇺🇸 US 🇨🇦 CA | UpperGASKET ONLY | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | MS16206 | 🇺🇸 US 🇨🇦 CA | Plenum Gasket SetFuel Injection | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 151028301 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
This table covers the gaskets that seal the Intake Plenum. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
9 Intake Plenum Gasket parts are listed for the 2005 Buick Park Avenue, from GM GENUINE, DORMAN, FEL-PRO and 5 other brands. DORMAN 615207 carries the "Popular" badge.
Part numbers include DORMAN 615207, FEL-PRO MS95812 and APEX AMS3590, among others listed above.
Intake Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Fits: 3.8L V6 | V4422 | 🇺🇸 US | Engine VIN Code 2,K.3133 stem | View on Amazon |
| MELLING Fits: 3.8L V6 | V1858 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| QUALCAST Fits: 3.8L V6 | 1013013 | 🇺🇸 US 🇨🇦 CA | 1.830 Head Diameter. | View on Amazon |
| SBI Fits: 3.8L V6 | 13013 | 🇺🇸 US 🇨🇦 CA | with 5/16 StemNote Late Valve | View on Amazon |
This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
4 Intake Valve parts are listed for the 2005 Buick Park Avenue, from ENGINETECH, MELLING, QUALCAST and 1 other brand.
Part numbers include ENGINETECH V4422, MELLING V1858 and QUALCAST 1013013, among others listed above.
Motor Mount
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 3.8L V6 | SKM2896 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Popular Fits: 3.8L V6 | 2896 | 🇺🇸 US 🇨🇦 CA | RightHydraulic | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: 3.8L V6 | A5224 | 🇺🇸 US 🇨🇦 CA | Front Right, with Bracket | View on Amazon |
| PIONEER Fits: 3.8L V6 | 612896 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| WESTAR Fits: 3.8L V6 | EM2896 | 🇺🇸 US 🇨🇦 CA | Front RightHydraulic Mount | View on Amazon |
This table covers the mounts that hold the engine to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
5 Motor Mount parts are listed for the 2005 Buick Park Avenue, from SKP, ANCHOR, DEA / MARMON RIDE CONTROL and 2 other brands. ANCHOR 2896 carries the "Popular" badge.
In the Economy grade, SKP supplies 1 part: the catalog's value-priced group. A representative part number is SKP SKM2896.
The Standard Replacement section: 4 options from ANCHOR, DEA / MARMON RIDE CONTROL, PIONEER and 1 other brand. ANCHOR 2896 is listed in this group.
Part numbers include ANCHOR 2896, SKP SKM2896 and DEA / MARMON RIDE CONTROL A5224, among others listed above.
Motor Mount Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 3.8L V6 | 301141 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Motor Mount kits.
One part is listed for the 2005 Buick Park Avenue — ANCHOR 301141.
Oil
Summary: Notes list SAE 0W-30 and SAE 5W-30. Confirm the engine and the weight on the filler cap before you buy. Replacement brands in this table include VALVOLINE, MOBIL and LIQUI MOLY.
Full Synthetic
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LIQUI MOLY Popular Fits: 3.8L V6 | 20228 | 🇺🇸 US 🇨🇦 CA | Molygen New Generation 5W-305 Liter | View on Amazon |
| MOBIL Popular Fits: 3.8L V6 | 125195 | 🇺🇸 US 🇨🇦 CA | Full Synthetic 5W-30Mobil Full Synthetic | View on Amazon |
| MOBIL Popular Fits: 3.8L V6 | 124315 | 🇺🇸 US 🇨🇦 CA | 5W-30Mobil 1 Advanced | View on Amazon |
| LIQUI MOLY Fits: 3.8L V6 | 20136 | 🇺🇸 US 🇨🇦 CA | Special Tec AA 5W-301 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.8L V6 | 20226 | 🇺🇸 US 🇨🇦 CA | Molygen New Generation 5W-301 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.8L V6 | 20138 | 🇺🇸 US 🇨🇦 CA | Special Tec AA 5W-305 Liter | View on Amazon |
| LUCAS OIL Fits: 3.8L V6 | 10049 | 🇺🇸 US 🇨🇦 CA | FULL SYNTHETIC MOTOR OIL SAE 5W-301 qt | View on Amazon |
| LUCAS OIL Fits: 3.8L V6 | 18005 | 🇺🇸 US 🇨🇦 CA | Full Synthetic Motor Oil SAE 5W-306 Gallon | View on Amazon |
| LUCAS OIL Fits: 3.8L V6 | 18008 | 🇺🇸 US 🇨🇦 CA | Full Synthetic Motor Oil SAE 0W-306 Gallon | View on Amazon |
| MOBIL Fits: 3.8L V6 | 112627 | 🇺🇸 US 🇨🇦 CA | Extended Performance 5W-30Mobil 1 Extended Performance | View on Amazon |
| MOBIL Fits: 3.8L V6 | 127568 | 🇺🇸 US | ESP 5W30 1 Quart | View on Amazon |
| PENTOSIN Fits: 3.8L V6 | 8044214 | 🇺🇸 US 🇨🇦 CA | 5W-30-Pentospeed-DEXOS1 GEN31 Liter | View on Amazon |
| PENTOSIN Fits: 3.8L V6 | 8044216 | 🇺🇸 US 🇨🇦 CA | 5W-30-Pentospeed-DEXOS1 GEN35 Liters | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | VV955 | 🇺🇸 US 🇨🇦 CA | Advanced Protection Full Synthetic SAE 5W-301 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | 891678 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic SAE 5W-301 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | 904564 | 🇺🇸 US 🇨🇦 CA | Restore & Protect Full Synthetic SAE 5W-301 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | 891670 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic SAE 5W-30Easy Pour 5 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | 904566 | 🇺🇸 US 🇨🇦 CA | Restore & Protect Full Synthetic SAE 5W-305 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | 881164 | 🇺🇸 US 🇨🇦 CA | Advanced Protection Full Synthetic SAE 5W-30Easy Pour 5 Quart | View on Amazon |
High Mileage (>75,000 Miles)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 3.8L V6 | VV1556 | 🇺🇸 US 🇨🇦 CA | Max Life High Mileage Synthetic Blend SAE 5W-301 Quart | View on Amazon |
| MOBIL Fits: 3.8L V6 | 123842 | 🇺🇸 US 🇨🇦 CA | Extended Performance High Mileage 5W-30Synthetic | View on Amazon |
| MOBIL Fits: 3.8L V6 | 103767 | 🇺🇸 US 🇨🇦 CA | High Mileage 5W-30Mobil 1 High Mileage | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | VV179 | 🇺🇸 US 🇨🇦 CA | Full Synthetic High Mileage with Max Life Technology SAE 5W-301 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | 881163 | 🇺🇸 US 🇨🇦 CA | Max Life High Mileage Synthetic Blend SAE 5W-30Easy Pour 5 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | 881169 | 🇺🇸 US 🇨🇦 CA | Full Synthetic High Mileage with Max Life Technology SAE 5W-30Easy Pour 5 Quart | View on Amazon |
Racing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU Fits: 3.8L V6 | 30018100750 | 🇺🇸 US | 10W30 Rotary Racing Oil1 Quart | View on Amazon |
Synthetic Blend
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 | 109290 | 🇺🇸 US | Synthetic BlendAPI SP Specifications | View on Amazon |
| MOBIL Popular Fits: 3.8L V6 | 124407 | 🇺🇸 US 🇨🇦 CA | Super 5W-30Mobil Super | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | 797975 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 5W-30 Synthetic Blend1 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 | 881159 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 5W-30 Synthetic BlendEasy Pour 5 Quart | View on Amazon |
This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable.
30 Oil parts are listed for the 2005 Buick Park Avenue, from VALVOLINE, MOBIL, LIQUI MOLY and 4 other brands. LIQUI MOLY 20228 carries the "Popular" badge. Grades run from Full Synthetic through Synthetic Blend; Full Synthetic is the most populated section, led by VALVOLINE, LIQUI MOLY, MOBIL and 2 other brands.
Oil Cooler Mounting Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HAYDEN Fits: 3.8L V6 | 238 | 🇺🇸 US 🇨🇦 CA | Rubber Block Mounting Kit for Heavy Duty Oil Cooler | View on Amazon |
| HAYDEN Fits: 3.8L V6 | 153 | 🇺🇸 US 🇨🇦 CA | Metal Mounting Bracket Kit for Heavy Duty Oil Cooler | View on Amazon |
This table covers the Oil Cooler Mounting kits.
2 Oil Cooler Mounting Kit parts for the 2005 Buick Park Avenue come from HAYDEN.
This group includes HAYDEN 238 and HAYDEN 153.
Oil Dipstick / Tube Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 3.8L V6 | 584210 | 🇺🇸 US 🇨🇦 CA | Inner Diameter [MM]: 6,07 | View on Amazon |
| FEL-PRO Fits: 3.8L V6 | 73889 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Fits: 3.8L V6 | 24504031 | 🇺🇸 US 🇨🇦 CA | 6.07 ID1.78 Diameter | View on Amazon |
This table covers the seals at the Oil Dipstick / Tube. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
3 Oil Dipstick / Tube Seal parts for the 2005 Buick Park Avenue come from 3 brands — ELRING, FEL-PRO and GM GENUINE.
This group includes ELRING 584210, FEL-PRO 73889 and GM GENUINE 24504031.
Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGS Fits: 3.8L V6 | ODP00009 | 🇺🇸 US 🇨🇦 CA | M12x1.75 | View on Amazon |
| ELRING Fits: 3.8L V6 | 823400 | 🇺🇸 US 🇨🇦 CA | with Seal RingBolt Head-/Nut Design: Male Hex | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 11562588 | 🇺🇸 US 🇨🇦 CA | with SealExc. Magnet | View on Amazon |
| VAICO Fits: 3.8L V6 | V400755 | 🇺🇸 US 🇨🇦 CA | Thread Size: M 12 X 1,75Includes Gasket | View on Amazon |
This table covers the drain plugs in the oil pan.
4 Oil Drain Plug parts are listed for the 2005 Buick Park Avenue, from AGS, ELRING, GM GENUINE and 1 other brand.
Part numbers include AGS ODP00009, ELRING 823400 and GM GENUINE 11562588, among others listed above.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 097119 | 🇺🇸 US 🇨🇦 CA | Rubber Gasket | View on Amazon |
| FEL-PRO Popular Fits: 3.8L V6 | 70820 | 🇺🇸 US 🇨🇦 CA | Rubber | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | 12616850 | 🇺🇸 US 🇨🇦 CA | Diameter 19.39 | View on Amazon |
| AJUSA Fits: 3.8L V6 | 01288800 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DORMAN Fits: 3.8L V6 | 97119 | 🇺🇸 US 🇨🇦 CA | Rubber GasketRubber | View on Amazon |
| ELRING Fits: 3.8L V6 | 056130 | 🇺🇸 US 🇨🇦 CA | Material: FPM (fluoride rubber)Outer Diameter [MM]: 20,8 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 03536966 | 🇺🇸 US 🇨🇦 CA | Priced Individually | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | B45828 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| ULTRA-POWER Fits: 3.8L V6 | 097119 | 🇺🇸 US 🇨🇦 CA | ID: 0.448"RUBBER GASKET | View on Amazon |
| ÜRO PARTS Fits: 3.8L V6 | 3536966 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VAICO Fits: 3.8L V6 | V401110 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the crush washers and gaskets under the oil drain plug. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
11 Oil Drain Plug Gasket parts for the 2005 Buick Park Avenue come from 9 brands — DORMAN, GM GENUINE, FEL-PRO and 6 other brands. The "Popular" part is DORMAN 097119.
Oil Filler Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 | FC208 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| MOTORAD Popular Fits: 3.8L V6 | MO99 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| CALORSTAT Fits: 3.8L V6 | OC2314 | 🇺🇸 US 🇨🇦 CA | PlasticTwist-On | View on Amazon |
| DORMAN Fits: 3.8L V6 | 42315 | 🇺🇸 US 🇨🇦 CA | with SAE 5W30 On Cap | View on Amazon |
| GATES Fits: 3.8L V6 | 31103 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: 3.8L V6 | SKMO99 | 🇺🇸 US 🇨🇦 CA | with Plastic cap | View on Amazon |
This table covers the caps on the oil filler neck.
6 Oil Filler Cap parts are listed for the 2005 Buick Park Avenue, from ACDELCO, MOTORAD, CALORSTAT and 3 other brands. ACDELCO FC208 carries the "Popular" badge.
Part numbers include ACDELCO FC208, MOTORAD MO99 and CALORSTAT OC2314, among others listed above.
Oil Filler Cap Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 3.8L V6 | 592250 | 🇺🇸 US 🇨🇦 CA | SealMaterial: AEM (Ethylene Acrylate Rubber) | View on Amazon |
| ELRING Fits: 3.8L V6 | 823620 | 🇺🇸 US 🇨🇦 CA | SealMaterial: HNBR (hydrogenated nitrile butadiene rubber) | View on Amazon |
| FEL-PRO Fits: 3.8L V6 | 73193 | 🇺🇸 US 🇨🇦 CA | Services OEM bonded Cap sealAftermarket Design | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 24100002 | 🇺🇸 US 🇨🇦 CA | Size # 32027.94MM Inner Diameter | View on Amazon |
This table covers the gaskets that seal the Oil Filler Cap. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
4 Oil Filler Cap Gasket parts for the 2005 Buick Park Avenue come from 3 brands — ELRING, FEL-PRO and GM GENUINE.
Part numbers include ELRING 592250, ELRING 823620 and FEL-PRO 73193, among others listed above.
Oil Filler Tube
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.8L V6 | 917414 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: 3.8L V6 | SK917414 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ULTRA-POWER Fits: 3.8L V6 | 917414 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Oil Filler tubes.
3 Oil Filler Tube parts are listed for the 2005 Buick Park Avenue, from DORMAN, SKP and ULTRA-POWER.
This group includes DORMAN 917414 and SKP SK917414 and the remaining parts above.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular Fits: 3.8L V6 | 72132WS | 🇺🇸 US 🇨🇦 CA | Workshop Oil FilterConnection Size: M18X1.5 | View on Amazon |
| CHAMP / LUBER-FINER Popular Fits: 3.8L V6 | PH47 | 🇺🇸 US 🇨🇦 CA | Inside Diameter: M18 X 1.5 Thread.Spin-On Filter. | View on Amazon |
| FRAM Fits: 3.8L V6 | FE3387A | 🇺🇸 US 🇨🇦 CA | Spin-OnTough Guard or Synthetic Endurance | View on Amazon |
| FVP Fits: 3.8L V6 | R1040 | 🇺🇸 US 🇨🇦 CA | Media Material: Synthetic BlendSpin-On Filter | View on Amazon |
| PRO-TEC Fits: 3.8L V6 | PXL51040 | 🇺🇸 US 🇨🇦 CA | Height: 3.45 InThread Size: M18X1.5 In | View on Amazon |
| VAICO Fits: 3.8L V6 | V400079 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VARIOUS MFR Fits: 3.8L V6 | PG111 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.8L V6 | UPF47R | 🇺🇸 US 🇨🇦 CA | Gold / Professional SpecialtyULTRAGUARD | View on Amazon |
| MOBIL Fits: 3.8L V6 | M1101A | 🇺🇸 US 🇨🇦 CA | Extended Performance | View on Amazon |
| WIX Fits: 3.8L V6 | 51040XP | 🇺🇸 US 🇨🇦 CA | XP Extreme DutyBest For Synthetic Motor Oils | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 | PF47E | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentGasket Or Seal Included: YES | View on Amazon |
| WIX Popular Fits: 3.8L V6 | 51040 | 🇺🇸 US 🇨🇦 CA | Height: 3.45 InMedia Material: Enhanced Cellulose | View on Amazon |
| BOSCH Fits: 3.8L V6 | 3331 | 🇺🇸 US 🇨🇦 CA | Premium Oil FilterConnection Size: M18X1.5 | View on Amazon |
| CHAMP / LUBER-FINER Fits: 3.8L V6 | PH47XL | 🇺🇸 US 🇨🇦 CA | Spin-On Filter.XL Synthetic | View on Amazon |
| DENSO Fits: 3.8L V6 | 1502015 | 🇺🇸 US 🇨🇦 CA | Engine Oil Filter or FTF Engine Oil Filter | View on Amazon |
| HASTINGS / BALDWIN Fits: 3.8L V6 | LF233 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HENGST Fits: 3.8L V6 | E630H02D103 | 🇺🇸 US 🇨🇦 CA | Includes Gasket SetCartridge | View on Amazon |
| HENGST Fits: 3.8L V6 | H90W26 | 🇺🇸 US 🇨🇦 CA | Filter Media Material: Enhanced CelluloseSpin-On | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | OC715 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
| VARIOUS MFR Fits: 3.8L V6 | PG111EX | 🇺🇸 US 🇨🇦 CA | Extended LifeSpin-On | View on Amazon |
This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.
20 Oil Filter parts are listed for the 2005 Buick Park Avenue, from BOSCH, CHAMP / LUBER-FINER, VARIOUS MFR and 11 other brands. BOSCH 72132WS carries the "Popular" badge.
Economy: 7 parts, from BOSCH, CHAMP / LUBER-FINER, FRAM and 4 other brands. A representative part number is BOSCH 72132WS.
In the High Performance / Heavy Duty grade, ACDELCO, MOBIL and WIX supply 3 parts: grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO UPF47R.
The Standard Replacement section: 10 options from HENGST, ACDELCO, WIX and 6 other brands. ACDELCO PF47E is listed in this group.
Oil Filter Adapter Gasket / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 25534742 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE Fits: 3.8L V6 | B31639 | 🇺🇸 US 🇨🇦 CA | Paper | View on Amazon |
This table covers the Oil Filter Adapter Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
2 Oil Filter Adapter Gasket / O-Ring parts for the 2005 Buick Park Avenue come from 2 brands — GM GENUINE and MAHLE / CLEVITE.
This group includes GM GENUINE 25534742 and MAHLE / CLEVITE B31639.
Oil Filter Bypass Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 25014612 | 🇺🇸 US 🇨🇦 CA | without VAPOR SEPARATOROPENING PRESSURE 21 PSI NOMINAL | View on Amazon |
This table covers the Oil Filter Bypass valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
One part is listed for the 2005 Buick Park Avenue — GM GENUINE 25014612.
Oil Filter Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 3.8L V6 | 01903900 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| APEX Fits: 3.8L V6 | AOM6003 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FEL-PRO Fits: 3.8L V6 | 70644 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VICTOR REINZ Fits: 3.8L V6 | 711350600 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the gaskets that seal the Oil Filter. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
4 Oil Filter Gasket parts for the 2005 Buick Park Avenue come from 4 brands — AJUSA, APEX, FEL-PRO and 1 other brand.
Listed part numbers: AJUSA 01903900, APEX AOM6003 and FEL-PRO 70644, plus the other parts above.
Oil Level Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 | D8055 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 12603782 | 🇺🇸 US 🇨🇦 CA | Straight Electrical ConnectorMating Connector with Leads Use 12102747 | View on Amazon |
| HOLSTEIN Fits: 3.8L V6 | 2OLS0002 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | FLS14 | 🇺🇸 US 🇨🇦 CA | Pin TerminalTerminal Gender: Male | View on Amazon |
| WELLS Fits: 3.8L V6 | 5S3003 | 🇺🇸 US 🇨🇦 CA | Connector Gender: Female | View on Amazon |
This table covers the Oil Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
5 Oil Level Sensor parts are listed for the 2005 Buick Park Avenue, from ACDELCO, GM GENUINE, HOLSTEIN and 2 other brands. ACDELCO D8055 carries the "Popular" badge.
Listed part numbers: ACDELCO D8055, GM GENUINE 12603782 and HOLSTEIN 2OLS0002, plus the other parts above.
Oil Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.8L V6 | 264644 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PIONEER Fits: 3.8L V6 | 501113 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM Fits: 3.8L V6 | GMP73A | 🇺🇸 US 🇨🇦 CA | GASKET AND/OR SEALANT NOT INCLUDED | View on Amazon |
This table covers the oil pans that hold the engine's oil sump.
3 Oil Pan parts for the 2005 Buick Park Avenue come from 3 brands — DORMAN, PIONEER and SPECTRA PREMIUM.
Listed part numbers: DORMAN 264644, PIONEER 501113 and SPECTRA PREMIUM GMP73A.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.8L V6 | OS30699R | 🇺🇸 US 🇨🇦 CA | PermadryRTV not included for Grooved Oil Pan | View on Amazon |
| VICTOR REINZ Popular Fits: 3.8L V6 | 703141410 | 🇺🇸 US 🇨🇦 CA | RTV Silicone | View on Amazon |
| APEX Fits: 3.8L V6 | AOP360 | 🇺🇸 US 🇨🇦 CA | 1st Design Engine. Block Casting # 24506029 | View on Amazon |
| ELRING Fits: 3.8L V6 | 698010 | 🇺🇸 US 🇨🇦 CA | with Oil Sump Plate | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | OS32225 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 101021601 | 🇺🇸 US 🇨🇦 CA | with Block Casting # 245060291st Design | View on Amazon |
This table covers the gaskets between the oil pan and the block. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
6 Oil Pan Gasket parts are listed for the 2005 Buick Park Avenue, from VICTOR REINZ, FEL-PRO, APEX and 2 other brands. FEL-PRO OS30699R carries the "Popular" badge.
Part numbers include FEL-PRO OS30699R, VICTOR REINZ 703141410 and APEX AOP360, among others listed above.
Oil Pump Repair Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING Fits: 3.8L V6 | K195 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SEALED POWER Fits: 3.8L V6 | 22453572 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Oil Pump repair kits.
2 Oil Pump Repair Kit parts for the 2005 Buick Park Avenue come from 2 brands — MELLING and SEALED POWER.
Part numbers include MELLING K195 and SEALED POWER 22453572.
Piston
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Fits: 3.8L V6 | K30381 | 🇺🇸 US | Recessed HeadCoated Skirt | View on Amazon |
| ENGINETECH Fits: 3.8L V6 | K30386P | 🇺🇸 US | Recessed Headwith Premium Rings | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | 2243407 | 🇺🇸 US 🇨🇦 CA | Non-Coated Skirt | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | H840NCP | 🇺🇸 US 🇨🇦 CA | 0.050in Deep x 2.900in Diameter RecessHypereutectic | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | H840CP | 🇺🇸 US 🇨🇦 CA | HypereutecticDuroshield Coated Skirt | View on Amazon |
This table covers the pistons that travel in each cylinder. Typical signs include knock, blow-by, or a cylinder that will not hold compression. Piston work is a short-block job. Match bore, pin and ring pack in the notes — not the photo.
5 Piston parts for the 2005 Buick Park Avenue come from 3 brands — ENGINETECH, SEALED POWER and MAHLE / CLEVITE.
Part numbers include ENGINETECH K30381, ENGINETECH K30386P and MAHLE / CLEVITE 2243407, among others listed above.
Piston Pin Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Fits: 3.8L V6 | EB0066 | 🇺🇸 US | Engine VIN code KSemi-finished ID | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | 2233647 | 🇺🇸 US 🇨🇦 CA | Requires Light Reaming | View on Amazon |
This table covers the Piston Pin bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
2 Piston Pin Bushing parts are listed for the 2005 Buick Park Avenue, from ENGINETECH and MAHLE / CLEVITE.
Listed part numbers: ENGINETECH EB0066 and MAHLE / CLEVITE 2233647.
Piston Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS MANUFACTURING Fits: 3.8L V6 | 2M4866S | 🇺🇸 US 🇨🇦 CA | Plasma Moly Top Ring1 Cylinder Set | View on Amazon |
| HASTINGS MANUFACTURING Fits: 3.8L V6 | 2M4866 | 🇺🇸 US 🇨🇦 CA | Plasma Moly Top RingTop Ring Surface Treatment: Plasma Moly | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | 41847CP | 🇺🇸 US 🇨🇦 CA | PremiumMaterial Carbon Steel / Cast Iron / Stainless Steel | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | E919K | 🇺🇸 US 🇨🇦 CA | PremiumRing Groove Widths: 1.2mm, 1.5mm, 2.0mm | View on Amazon |
This table covers the rings that seal each piston to the cylinder wall.
4 Piston Ring parts for the 2005 Buick Park Avenue come from 3 brands — HASTINGS MANUFACTURING, MAHLE / CLEVITE and SEALED POWER.
Listed part numbers: HASTINGS MANUFACTURING 2M4866S, HASTINGS MANUFACTURING 2M4866 and MAHLE / CLEVITE 41847CP, plus the other parts above.
Push Rod
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 24504406 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MELLING Fits: 3.8L V6 | MPR605 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SBI Fits: 3.8L V6 | 1901533 | 🇺🇸 US 🇨🇦 CA | Intake and Exhaust7.029 Length | View on Amazon |
This table covers the pushrods that transfer lifter motion to the rocker arms.
3 Push Rod parts for the 2005 Buick Park Avenue come from 3 brands — GM GENUINE, MELLING and SBI.
This group includes GM GENUINE 24504406, MELLING MPR605 and SBI 1901533.
Supercharger Bypass Solenoid / Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | SB1 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Supercharger Bypass Solenoid valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
This group shows a single part: STANDARD MOTOR PRODUCTS SB1.
Timing Cam Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CLOYES Fits: 3.8L V6 | S810T | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: 3.8L V6 | S810T | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| INA Fits: 3.8L V6 | ZSS810T | 🇺🇸 US 🇨🇦 CA | L27, L36 Engine | View on Amazon |
| S.A. GEAR Fits: 3.8L V6 | S810 | 🇺🇸 US 🇨🇦 CA | L27, L36 Engine | View on Amazon |
This table covers the Timing Cam sprockets.
4 Timing Cam Sprocket parts are listed for the 2005 Buick Park Avenue, from CLOYES, FVP, INA and 1 other brand.
This group includes CLOYES S810T and INA ZSS810T and the remaining parts above.
Timing Chain
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING Popular Fits: 3.8L V6 | 381A | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| CLOYES Fits: 3.8L V6 | C381A | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| INA Fits: 3.8L V6 | ZCC381A | 🇺🇸 US 🇨🇦 CA | L27, L36 Engine | View on Amazon |
| PREFERRED COMPONENTS INC Fits: 3.8L V6 | C381A | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| S.A. GEAR Fits: 3.8L V6 | C381A | 🇺🇸 US 🇨🇦 CA | L27, L36 Engine | View on Amazon |
This table covers the timing chains that keep the cams in time with the crank.
5 Timing Chain parts for the 2005 Buick Park Avenue come from 5 brands — MELLING, CLOYES, INA and 2 other brands. The "Popular" part is MELLING 381A.
Listed part numbers: MELLING 381A, CLOYES C381A and INA ZCC381A, plus the other parts above.
Timing Chain & Component Kit
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| S.A. GEAR Popular Fits: 3.8L V6 | 76173 | 🇺🇸 US 🇨🇦 CA | Includes Cam Sprocket, Chain, Crank Sprocket, Tensioner | View on Amazon |
| S.A. GEAR Fits: 3.8L V6 | 73127 | 🇺🇸 US 🇨🇦 CA | Includes Cam Sprocket, Chain, Crank Sprocket | View on Amazon |
| SKP Fits: 3.8L V6 | SKC3214 | 🇺🇸 US 🇨🇦 CA | Includes: Camshaft Sprocket, Crankshaft Sprocket, Chain | View on Amazon |
| ULTRA-POWER Fits: 3.8L V6 | C3214 | 🇺🇸 US 🇨🇦 CA | Timing SetBase Model | View on Amazon |
| ULTRA-POWER Fits: 3.8L V6 | 90381SA | 🇺🇸 US 🇨🇦 CA | Timing Chain KitBase Model | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CLOYES Popular Fits: 3.8L V6 | 90381SA | 🇺🇸 US 🇨🇦 CA | Includes: Timing Chain, Timing Damper, Crankshaft Sprocket, Camshaft Sprocket | View on Amazon |
| MELLING Popular Fits: 3.8L V6 | 3381A | 🇺🇸 US 🇨🇦 CA | Includes BD344 Chain Damper | View on Amazon |
| CLOYES Fits: 3.8L V6 | C3214 | 🇺🇸 US 🇨🇦 CA | Timing SetSet Contains: Timing Chain, Crankshaft Sprocket, Camshaft Sprocket | View on Amazon |
| ENGINETECH Fits: 3.8L V6 | TS381A | 🇺🇸 US | Engine VIN code 2,K | View on Amazon |
| INA Fits: 3.8L V6 | ZCC3214 | 🇺🇸 US 🇨🇦 CA | Kit Contains 1 Chain, 1 Crank Sprocket, 1 Cam Sprocket | View on Amazon |
| INA Fits: 3.8L V6 | ZC90381SA | 🇺🇸 US 🇨🇦 CA | Includes 1 Chain, 1 Cam Sprocket, 1 Crank Sprocket, 1 Tensioner, Damper | View on Amazon |
| INA Fits: 3.8L V6 | ZC90381SB | 🇺🇸 US 🇨🇦 CA | Includes 1 Chain, 1 Cam Sprocket, 1 Crank Sprocket, 1 Tensioner | View on Amazon |
| INA Fits: 3.8L V6 | ZCC3215 | 🇺🇸 US 🇨🇦 CA | Includes 1 Cam Sprocket, 1 Chain, 1 Crank Sprocket, 3 PC. | View on Amazon |
| MELLING Fits: 3.8L V6 | 3381AS | 🇺🇸 US 🇨🇦 CA | Chain Damper Not Included | View on Amazon |
This table covers kits that group a timing chain with the related tensioners and guides.
14 Timing Chain & Component Kit parts are listed for the 2005 Buick Park Avenue, from INA, S.A. GEAR, ULTRA-POWER and 4 other brands. S.A. GEAR 76173 carries the "Popular" badge.
Economy: 5 parts, from S.A. GEAR, ULTRA-POWER and SKP. A representative part number is S.A. GEAR 76173.
The Standard Replacement section: 9 options from INA, CLOYES, MELLING and 1 other brand. CLOYES 90381SA is listed in this group.
Timing Chain Guide / Damper
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | 24503893 | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
| MELLING Popular Fits: 3.8L V6 | BD344 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| CLOYES Fits: 3.8L V6 | 95344 | 🇺🇸 US 🇨🇦 CA | DAMPER | View on Amazon |
| INA Fits: 3.8L V6 | ZT95344 | 🇺🇸 US 🇨🇦 CA | L27, L36 Engine | View on Amazon |
| PREFERRED COMPONENTS INC Fits: 3.8L V6 | R75344 | 🇺🇸 US 🇨🇦 CA | 2nd Design | View on Amazon |
| S.A. GEAR Fits: 3.8L V6 | 7344 | 🇺🇸 US 🇨🇦 CA | L27, L36 Engine | View on Amazon |
This table covers the guides and dampers that keep the timing chain on its path.
6 Timing Chain Guide / Damper parts for the 2005 Buick Park Avenue come from 6 brands — GM GENUINE, MELLING, CLOYES and 3 other brands. The "Popular" part is GM GENUINE 24503893.
Listed part numbers: GM GENUINE 24503893, MELLING BD344 and CLOYES 95344, plus the other parts above.
Timing Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.8L V6 | TCS46077 | 🇺🇸 US 🇨🇦 CA | Permadryplus Timing Cover Gasket Included | View on Amazon |
| ULTRA-POWER Popular Fits: 3.8L V6 | TCS46077 | 🇺🇸 US 🇨🇦 CA | Includes Timing Cover Gasket | View on Amazon |
| APEX Fits: 3.8L V6 | ATC3590 | 🇺🇸 US 🇨🇦 CA | 1st Design Engine. Block Casting # 24506029 | View on Amazon |
| APEX Fits: 3.8L V6 | ATC3591 | 🇺🇸 US 🇨🇦 CA | 2nd DesignEngine block casting# 12585793 | View on Amazon |
| FEL-PRO Fits: 3.8L V6 | TCS45971 | 🇺🇸 US 🇨🇦 CA | Permadryplus Timing Cover Gasket IncludedRepair Sleeve Not Included | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 12731121 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE Fits: 3.8L V6 | JV1207 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 151020601 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 151019301 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
This table covers the gaskets that seal the Timing Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
9 Timing Cover Gasket parts are listed for the 2005 Buick Park Avenue, from FEL-PRO, APEX, VICTOR REINZ and 3 other brands. FEL-PRO TCS46077 carries the "Popular" badge.
This group includes FEL-PRO TCS46077 and APEX ATC3590 and the remaining parts above.
Timing Cover Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 3.8L V6 | 16216 | 🇺🇸 US 🇨🇦 CA | Use with Installation Tool | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 711457200 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the wear sleeves used to restore a Timing Cover seal surface.
2 Timing Cover Repair Sleeve parts are listed for the 2005 Buick Park Avenue, from FEL-PRO and VICTOR REINZ.
Part numbers include FEL-PRO 16216 and VICTOR REINZ 711457200.
Timing Cover Repair Sleeve Tool
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VICTOR REINZ Fits: 3.8L V6 | 711647000 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Timing Cover Repair Sleeve tools. This is a service tool, not a wear part — match the application in the notes.
One part is listed for the 2005 Buick Park Avenue — VICTOR REINZ 711647000.
Timing Cover Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 3.8L V6 | 48069 | 🇺🇸 US 🇨🇦 CA | Rubber | View on Amazon |
| SCHAEFFLER Fits: 3.8L V6 | SS2992 | 🇺🇸 US 🇨🇦 CA | 2.75" O.D. X 0.36" Width | View on Amazon |
| SKF Fits: 3.8L V6 | 6200J | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the seals at the Timing Cover. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
3 Timing Cover Seal parts are listed for the 2005 Buick Park Avenue, from MAHLE / CLEVITE, SCHAEFFLER and SKF.
Listed part numbers: MAHLE / CLEVITE 48069, SCHAEFFLER SS2992 and SKF 6200J.
Timing Crank Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| S.A. GEAR Popular Fits: 3.8L V6 | S811 | 🇺🇸 US 🇨🇦 CA | L27, L36 Engine | View on Amazon |
| CLOYES Fits: 3.8L V6 | S811 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: 3.8L V6 | S811 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| INA Fits: 3.8L V6 | ZSS811 | 🇺🇸 US 🇨🇦 CA | L27, L36 Engine | View on Amazon |
| PREFERRED COMPONENTS INC Fits: 3.8L V6 | G55811 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the crankshaft sprockets that drive the timing chain or belt.
5 Timing Crank Sprocket parts are listed for the 2005 Buick Park Avenue, from S.A. GEAR, CLOYES, FVP and 2 other brands. S.A. GEAR S811 carries the "Popular" badge.
Listed part numbers: S.A. GEAR S811, plus the other parts above.
Valve Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Fits: 3.8L V6 | GM1422899 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| DORMAN Fits: 3.8L V6 | 264966 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| DORMAN Fits: 3.8L V6 | 264967 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 12590366 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
This table covers the Valve covers.
4 Valve Cover parts for the 2005 Buick Park Avenue come from 3 brands — DORMAN, AUTOTECNICA and GM GENUINE.
Listed part numbers: AUTOTECNICA GM1422899, DORMAN 264966 and DORMAN 264967, plus the other parts above.
Valve Cover Bolt / Screw
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 24502164 | 🇺🇸 US 🇨🇦 CA | with Washer To Cylinder Head1/4-20X1 | View on Amazon |
This table covers the Valve Cover Bolt screws. Typical signs include a rounded head, a seeping bleeder, or a fastener that will not hold torque. Do not force a new screw into a stripped hole — repair the thread first.
This group shows a single part: GM GENUINE 24502164.
Valve Cover Bolt Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 25534749 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the seals at the Valve Cover Bolt. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
This group shows a single part: GM GENUINE 25534749.
Valve Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Popular Fits: 3.8L V6 | AVC353S | 🇺🇸 US 🇨🇦 CA | Includes Grommets | View on Amazon |
| FEL-PRO Popular Fits: 3.8L V6 | VS50080R | 🇺🇸 US 🇨🇦 CA | Permadry RubberValve Cover Grommets Not Included | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | 25532619 | 🇺🇸 US 🇨🇦 CA | Services one cover only | View on Amazon |
| APEX Fits: 3.8L V6 | AVC353 | 🇺🇸 US 🇨🇦 CA | One Cover Onlywithout Grommets | View on Amazon |
| ELRING Fits: 3.8L V6 | 754650 | 🇺🇸 US 🇨🇦 CA | Body code: CW69 | View on Amazon |
| ELRING Fits: 3.8L V6 | 697970 | 🇺🇸 US 🇨🇦 CA | Body code: CW69 | View on Amazon |
| FEL-PRO Fits: 3.8L V6 | VS50320R | 🇺🇸 US 🇨🇦 CA | Permadry RubberValve Cover Grommets Not Included | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | VS50123 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | VS50052 | 🇺🇸 US 🇨🇦 CA | SetMolded Rubber | View on Amazon |
| ULTRA-POWER Fits: 3.8L V6 | VS50465R | 🇺🇸 US 🇨🇦 CA | SetIncludes Molded Rubber Gasket(s), Valve Cover Grommets | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 151062001 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 151061401 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
This table covers the gaskets that seal the valve cover to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
12 Valve Cover Gasket parts are listed for the 2005 Buick Park Avenue, from APEX, FEL-PRO, ELRING and 4 other brands. APEX AVC353S carries the "Popular" badge.
Valve Cover Grommet
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Fits: 3.8L V6 | AES302 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| FEL-PRO Fits: 3.8L V6 | ES72833 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | GS33304 | 🇺🇸 US 🇨🇦 CA | KitSet | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 151013601 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
This table covers the Valve Cover grommets.
4 Valve Cover Grommet parts are listed for the 2005 Buick Park Avenue, from APEX, FEL-PRO, MAHLE / CLEVITE and 1 other brand.
Listed part numbers: APEX AES302, FEL-PRO ES72833 and MAHLE / CLEVITE GS33304, plus the other parts above.
Valve Guide
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| QUALCAST Fits: 3.8L V6 | 309690 | 🇺🇸 US 🇨🇦 CA | 2.375 OAL. Spiral I.D. | View on Amazon |
| SBI Fits: 3.8L V6 | 1409690 | 🇺🇸 US 🇨🇦 CA | Intake and Exhaust0.3150 I.D. | View on Amazon |
This table covers the pressed-in bronze and cast-iron guides that align valve stems. Typical signs include oil smoke on startup, a guide that has gone oval, or a valve that no longer seats quietly. Guides are a machine-shop fit. Confirm stem diameter in the notes before ordering.
2 Valve Guide parts are listed for the 2005 Buick Park Avenue, from QUALCAST and SBI.
Part numbers include QUALCAST 309690 and SBI 1409690.
Valve Lifter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 3.8L V6 | 2131738 | 🇺🇸 US 🇨🇦 CA | Hydraulic | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Popular Fits: 3.8L V6 | L2281 | 🇺🇸 US | HydraulicRoller Follower | View on Amazon |
| MELLING Popular Fits: 3.8L V6 | JB2079 | 🇺🇸 US 🇨🇦 CA | Hydraulic | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | HL124 | 🇺🇸 US 🇨🇦 CA | Complete Assembly | View on Amazon |
| QUALCAST Fits: 3.8L V6 | 362148 | 🇺🇸 US 🇨🇦 CA | Hydraulic Roller | View on Amazon |
| SBI Fits: 3.8L V6 | VL115 | 🇺🇸 US 🇨🇦 CA | Intake and Exhaust0.842 Body Diameter | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | HT2148AB | 🇺🇸 US 🇨🇦 CA | Hydraulic Roller Lifters | View on Amazon |
| SEALED POWER Fits: 3.8L V6 | HT2148A | 🇺🇸 US 🇨🇦 CA | Hydraulic Roller Lifters | View on Amazon |
This table covers the lifters / tappets that transfer cam motion to the valves.
8 Valve Lifter parts are listed for the 2005 Buick Park Avenue, from SEALED POWER, MAHLE / CLEVITE, ENGINETECH and 4 other brands. ENGINETECH L2281 carries the "Popular" badge.
Economy: 1 part, from MAHLE / CLEVITE. A representative part number is MAHLE / CLEVITE 2131738.
The Standard Replacement section: 7 options from SEALED POWER, ENGINETECH, MELLING and 3 other brands. ENGINETECH L2281 is listed in this group.
Listed part numbers: ENGINETECH L2281, MAHLE / CLEVITE 2131738 and MELLING JB2079, plus the other parts above.
Valve Seat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Popular Fits: 3.8L V6 | 30658 | 🇺🇸 US 🇨🇦 CA | Intake1-3/4 O.D.,1-1/2 I.D.,7/32 Depth,, | View on Amazon |
| SBI Popular Fits: 3.8L V6 | SB15629 | 🇺🇸 US 🇨🇦 CA | High ChromeFor Cast Iron Cylinder Head | View on Amazon |
| DURA-BOND Fits: 3.8L V6 | 30541 | 🇺🇸 US | Exhaust | View on Amazon |
| ENGINETECH Fits: 3.8L V6 | ST15629 | 🇺🇸 US | Hi-Chrome1.313 X 1.5695 X .2188 or 1.313/1.375T X 1.5695 X .2188 | View on Amazon |
| QUALCAST Fits: 3.8L V6 | 2015629 | 🇺🇸 US 🇨🇦 CA | INSERT | View on Amazon |
| SBI Fits: 3.8L V6 | SB187519 | 🇺🇸 US 🇨🇦 CA | High ChromeFor Cast Iron Cylinder Head | View on Amazon |
This table covers the Valve seats.
6 Valve Seat parts for the 2005 Buick Park Avenue come from 4 brands — DURA-BOND, SBI, ENGINETECH and 1 other brand. The "Popular" part is DURA-BOND 30658.
Listed part numbers: DURA-BOND 30658, SBI SB15629 and DURA-BOND 30541, plus the other parts above.
Valve Spring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING Popular Fits: 3.8L V6 | VS2226 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ENGINETECH Fits: 3.8L V6 | ERV2212 | 🇺🇸 US | Intake and Exhaust | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 19257200 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| QUALCAST Fits: 3.8L V6 | 322212 | 🇺🇸 US 🇨🇦 CA | 1.958 Free Length. Conical | View on Amazon |
| SBI Fits: 3.8L V6 | 1601267 | 🇺🇸 US 🇨🇦 CA | Intake and Exhaust1.960 Length | View on Amazon |
This table covers the springs that close each intake and exhaust valve. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.
5 Valve Spring parts for the 2005 Buick Park Avenue come from 5 brands — MELLING, ENGINETECH, GM GENUINE and 2 other brands. The "Popular" part is MELLING VS2226.
Listed part numbers: MELLING VS2226, ENGINETECH ERV2212 and GM GENUINE 19257200, plus the other parts above.
Valve Spring Retainer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 24502257 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| QUALCAST Fits: 3.8L V6 | 556103 | 🇺🇸 US 🇨🇦 CA | Chrome Moly. 1.030 O.D. 8mm Stem | View on Amazon |
This table covers the Valve Spring retainers.
2 Valve Spring Retainer parts for the 2005 Buick Park Avenue come from 2 brands — GM GENUINE and QUALCAST.
Listed part numbers: GM GENUINE 24502257 and QUALCAST 556103.
Valve Spring Retainer Keeper
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING Popular Fits: 3.8L V6 | VL760 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ENGINETECH Fits: 3.8L V6 | EPC291 | 🇺🇸 US | Engine VIN code K,2Single Round Groove | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 10166345 | 🇺🇸 US 🇨🇦 CA | Material: Alloy Steel | View on Amazon |
| QUALCAST Fits: 3.8L V6 | 345005 | 🇺🇸 US 🇨🇦 CA | 0.314 Stem. Round Bead In Middle. | View on Amazon |
| SBI Fits: 3.8L V6 | 1211085 | 🇺🇸 US 🇨🇦 CA | Intake and Exhaust0.2900 Length | View on Amazon |
This table covers the keepers that lock each valve-spring retainer to the stem.
5 Valve Spring Retainer Keeper parts for the 2005 Buick Park Avenue come from 5 brands — MELLING, ENGINETECH, GM GENUINE and 2 other brands. The "Popular" part is MELLING VL760.
Part numbers include MELLING VL760, ENGINETECH EPC291 and GM GENUINE 10166345, among others listed above.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Popular Fits: 3.8L V6 | S2926 | 🇺🇸 US | Outside Diameter: 0.602Seal Type: Positive-Metal Clad | View on Amazon |
| ENGINETECH Popular Fits: 3.8L V6 | S2927 | 🇺🇸 US | Outside Diameter: 0.630Seal Type: Positive-Metal Clad | View on Amazon |
| FEL-PRO Popular Fits: 3.8L V6 | SS72144 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| APEX Fits: 3.8L V6 | AVS3059 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| ELRING Fits: 3.8L V6 | 723420 | 🇺🇸 US 🇨🇦 CA | Body code: CW69 | View on Amazon |
| ENGINETECH Fits: 3.8L V6 | S9224 | 🇺🇸 US | Viton | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 | SS45911 | 🇺🇸 US 🇨🇦 CA | SetMetal with Molded Rubber | View on Amazon |
| QUALCAST Fits: 3.8L V6 | 3881945 | 🇺🇸 US 🇨🇦 CA | Viton Ring and Band | View on Amazon |
| SBI Fits: 3.8L V6 | 1221077 | 🇺🇸 US 🇨🇦 CA | IntakeViton Material | View on Amazon |
| ULTRA-POWER Fits: 3.8L V6 | SS72144 | 🇺🇸 US 🇨🇦 CA | SetPremium Valve Stem Seals Included | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 | 121005001 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
This table covers the seals on each valve stem that control oil into the guides. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
11 Valve Stem Seal parts are listed for the 2005 Buick Park Avenue, from ENGINETECH, FEL-PRO, APEX and 6 other brands. ENGINETECH S2926 carries the "Popular" badge.
Variable Valve Timing (VVT) Solenoid / Actuator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.8L V6 | 916952 | 🇺🇸 US 🇨🇦 CA | Adjuster Magnet | View on Amazon |
| WELLS Fits: 3.8L V6 | 5S1233 | 🇺🇸 US 🇨🇦 CA | Adjuster Magnet | View on Amazon |
This table covers the oil-control solenoids that command the cam phasers. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same.
2 Variable Valve Timing (VVT) Solenoid / Actuator parts are listed for the 2005 Buick Park Avenue, from DORMAN and WELLS.
Listed part numbers: DORMAN 916952 and WELLS 5S1233.
Buying Engine Parts for a 2005 Buick Park Avenue
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Match the engine first. Some engine parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil and Crankshaft Seal .
Frequently Asked Questions
How many engine parts fit the 2005 Buick Park Avenue?
Our catalog currently lists 401 engine parts for the 2005 Buick Park Avenue across 79 subcategories and 68 brands, covering both the 3.8L V6 and the 3.8L V6 Supercharged. Each part is matched to the engine(s) it fits.
Do engine parts differ between 2005 Buick Park Avenue engines?
Some do. 6 parts fit every engine; the other 395 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of engine problems on a 2005 Buick Park Avenue?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What oil viscosity is listed for the 2005 Buick Park Avenue?
Oil rows on this page include SAE 0W-30 and SAE 5W-30. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2005 Buick Park Avenue was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2005 Buick Park Avenue?
First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2005 Buick Park Avenue
Engine Parts for Other Buick Park Avenue Years
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