2004 Buick Regal Engine Parts

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. Read more

2 Balance Shaft Bearing parts are listed for the 2004 Buick Regal, from MAHLE / CLEVITE and SEALED POWER.

This group includes MAHLE / CLEVITE SH1798S and SEALED POWER 3204DR.

This table covers the Balance Shaft sprockets. Read more

5 Balance Shaft Sprocket parts for the 2004 Buick Regal come from 3 brands — INA, CLOYES and S.A. GEAR. The "Popular" part is INA ZS2551.

This group includes INA ZS2551, CLOYES 2551 and CLOYES 2558 and the remaining parts above.

This table covers the camshafts that open the valves. Read more

This group shows a single part: ENGINETECH ES1541.

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. Read more

5 Camshaft Bearing parts for the 2004 Buick Regal come from 4 brands — ENGINETECH, DURA-BOND, MAHLE / CLEVITE and 1 other brand. The "Popular" part is ENGINETECH CC421.

Part numbers include ENGINETECH CC421, DURA-BOND B14 and ENGINETECH CC430, among others listed above.

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. Read more

One part is listed for the 2004 Buick Regal — PIONEER PG801.

This table covers the connecting rods between each piston and the crankshaft. Read more

This group shows a single part: ENGINETECH ECR308.

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. Read more

11 Connecting Rod Bearing parts for the 2004 Buick Regal 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.

This table covers the Connecting Rod bolts. Read more

One part is listed for the 2004 Buick Regal — GM GENUINE 11610158.

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. Read more

6 Conversion / Lower Gasket Set parts for the 2004 Buick Regal come from 5 brands — ENGINETECH, FEL-PRO, APEX and 2 other brands. The "Popular" part is ENGINETECH B38CSA.

Listed part numbers: ENGINETECH B38CSA, FEL-PRO CS99173 and APEX ACS3142, plus the other parts above.

This table covers the crankshafts that turn piston motion into rotation. Read more

This group shows a single part: ENGINETECH 104000.

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. Read more

6 Crankshaft Main Bearing parts are listed for the 2004 Buick Regal, from MAHLE / CLEVITE, ENGINETECH, GM GENUINE and 2 other brands. ENGINETECH BC455J carries the "Popular" badge.

This group includes ENGINETECH BC455J, MAHLE / CLEVITE MS2022P and GM GENUINE 89017698 and the remaining parts above.

This table covers the Crankshaft Main Bearing Cap bolts. Read more

This group shows a single part: GM GENUINE 24503056.

This table covers the wear sleeves used to restore a Crankshaft Main Bearing seal surface. Read more

This group shows a single part: VICTOR REINZ 711348200.

This table covers the sleeves used to restore a grooved crankshaft seal surface. Read more

7 Crankshaft Repair Sleeve parts are listed for the 2004 Buick Regal, from TIMKEN, WJB / INMOTION PARTS, FEL-PRO and 2 other brands. TIMKEN KWK99193 carries the "Popular" badge.

Part numbers include TIMKEN KWK99193, WJB / INMOTION PARTS WS99193 and FEL-PRO 16276, among others listed above.

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. Read more

18 Crankshaft Seal parts are listed for the 2004 Buick Regal, from TIMKEN, WJB / INMOTION PARTS, GM GENUINE and 8 other brands. GM GENUINE 12582313 carries the "Popular" badge.

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. Read more

This group shows a single part: GM GENUINE 24507388.

This table covers the cylinder heads that close the top of the block. Read more

ENGINETECH supplies both parts for the 2004 Buick Regal.

Listed part numbers: ENGINETECH CH1119R and ENGINETECH CH1120R.

This table covers the bolts that clamp the cylinder head to the block. Read more

6 Cylinder Head Bolt parts for the 2004 Buick Regal come from 6 brands — APEX, ENGINETECH, GM GENUINE and 3 other brands. The "Popular" part is APEX AHB359.

Part numbers include APEX AHB359, ENGINETECH HB141 and GM GENUINE 88891770, among others listed above.

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. Read more

10 Cylinder Head Gasket parts for the 2004 Buick Regal come from 5 brands — FEL-PRO, APEX, MAHLE / CLEVITE and 2 other brands. The "Popular" part is FEL-PRO 9918PT.

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. Read more

9 Cylinder Head Gasket Set parts for the 2004 Buick Regal come from 8 brands — ENGINETECH, FEL-PRO, SKP and 5 other brands. The "Popular" part is FEL-PRO HS9917PT3.

This group includes FEL-PRO HS9917PT3, SKP SKHS9917PT and APEX AHS3059 and the remaining parts above.

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. Read more

DORMAN supplies both parts for the 2004 Buick Regal.

Listed part numbers: DORMAN 565019 and DORMAN 570006.

This table covers the wear sleeves used to restore a Cylinder seal surface. Read more

4 Cylinder Repair Sleeve parts for the 2004 Buick Regal come from 2 brands — MELLING and ENGINETECH.

This group includes ENGINETECH ESL1101, MELLING CSL138 and MELLING CSL138X and the remaining parts above.

This table covers the block heaters that warm the coolant or oil in cold weather. Read more

2 Engine Block Heater parts are listed for the 2004 Buick Regal, from KAT'S HEATERS and TEMRO.

This group includes KAT'S HEATERS 11416 and TEMRO 3100041.

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. Read more

3 Engine Kit Gasket Set parts for the 2004 Buick Regal come from 2 brands — ENGINETECH and MAHLE / CLEVITE.

Listed part numbers: ENGINETECH B38K2, ENGINETECH B38K3 and MAHLE / CLEVITE 953664.

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. Read more

5 Exhaust Valve parts are listed for the 2004 Buick Regal, from MELLING, ENGINETECH, QUALCAST and 2 other brands. MELLING V1735 carries the "Popular" badge.

Part numbers include MELLING V1735, ENGINETECH V3223 and QUALCAST 101735, among others listed above.

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. Read more

8 Expansion Plug parts for the 2004 Buick Regal 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.

This table covers the crankshaft pulleys / harmonic balancers at the front of the engine. Read more

6 Harmonic Balancer parts for the 2004 Buick Regal come from 4 brands — ATP, PIONEER, DAYCO and 1 other brand. The "Popular" part is DAYCO PB1237N.

Part numbers include DAYCO PB1237N, DORMAN 594004 and ATP 102074, among others listed above.

This table covers the Harmonic Balancer bolts. Read more

One part is listed for the 2004 Buick Regal — GM GENUINE 24504736.

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. Read more

6 Intake Manifold parts are listed for the 2004 Buick Regal, 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.

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. Read more

11 Intake Manifold Gasket parts for the 2004 Buick Regal 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.

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. Read more

9 Intake Plenum Gasket parts are listed for the 2004 Buick Regal, from GM GENUINE, DORMAN, FEL-PRO and 4 other brands. DORMAN 615207 carries the "Popular" badge.

Listed part numbers: DORMAN 615207, FEL-PRO MS95812 and APEX AMS3590, plus the other parts above.

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. Read more

4 Intake Valve parts are listed for the 2004 Buick Regal, from ENGINETECH, MELLING, QUALCAST and 1 other brand.

Listed part numbers: ENGINETECH V4422, MELLING V1858 and QUALCAST 101858, plus the other parts above.

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. Read more

10 Motor Mount parts are listed for the 2004 Buick Regal, from PIONEER, SKP, DEA / MARMON RIDE CONTROL and 3 other brands. DEA / MARMON RIDE CONTROL A2796HY carries the "Popular" badge.

In the Economy grade, SKP supplies 2 parts: the catalog's value-priced group. A representative part number is SKP SKM2796.

The Standard Replacement section: 8 options from PIONEER, DEA / MARMON RIDE CONTROL, GM GENUINE and 2 other brands. DEA / MARMON RIDE CONTROL A2796HY is listed in this group.

This table covers the brackets that mount the Motor Mount. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2004 Buick Regal — DORMAN 917000.

This table covers the Motor Mount kits. Read more

4 Motor Mount Kit parts are listed for the 2004 Buick Regal, from ANCHOR, DEA / MARMON RIDE CONTROL, SKP and 1 other brand.

This group includes ANCHOR 300661, DEA / MARMON RIDE CONTROL MK5021 and SKP SKM3057K and the remaining parts above.

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. Read more

41 Oil parts are listed for the 2004 Buick Regal, from VALVOLINE, MOBIL, LIQUI MOLY and 4 other brands. MOBIL 125195 carries the "Popular" badge. Grades run from Conventional through Synthetic Blend; Full Synthetic is the most populated section, led by VALVOLINE, MOBIL, LIQUI MOLY and 2 other brands.

This table covers the Oil Cooler Mounting kits. Read more

2 Oil Cooler Mounting Kit parts for the 2004 Buick Regal come from HAYDEN.

Listed part numbers: HAYDEN 238 and HAYDEN 153.

This table covers the Oil Dipstick tubes. Read more

5 Oil Dipstick / Tube parts are listed for the 2004 Buick Regal, from DORMAN, SKP, AUTOTECNICA and 1 other brand. SKP SK917300 carries the "Popular" badge.

Part numbers include SKP SK917300, AUTOTECNICA GM1421439 and DORMAN 917300, among others listed above.

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. Read more

2 Oil Dipstick / Tube Seal parts for the 2004 Buick Regal come from 2 brands — FEL-PRO and GM GENUINE.

This group includes FEL-PRO 73889 and GM GENUINE 24504031.

This table covers the drain plugs in the oil pan. Read more

6 Oil Drain Plug parts are listed for the 2004 Buick Regal, from DORMAN, GM GENUINE, AGS and 1 other brand. DORMAN 090034 carries the "Popular" badge.

Part numbers include DORMAN 090034, GM GENUINE 11562588 and AGS ODP00009, among others listed above.

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. Read more

10 Oil Drain Plug Gasket parts for the 2004 Buick Regal come from 8 brands — GM GENUINE, DORMAN, FEL-PRO and 5 other brands. The "Popular" part is FEL-PRO 70820.