1991 Buick Park Avenue Engine Parts

This table covers the Balance Shaft sprockets. Read more

4 Balance Shaft Sprocket parts are listed for the 1991 Buick Park Avenue, from CLOYES, FVP, INA and 1 other brand.

Part numbers include CLOYES 2551 and INA ZS2551, among others listed above.

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 are listed for the 1991 Buick Park Avenue, from DURA-BOND and ENGINETECH.

Part numbers include DURA-BOND B13, DURA-BOND B13R and DURA-BOND BP13, among others listed above.

This table covers the Camshaft Thrust buttons. Read more

PIONEER supplies the 4 Camshaft Thrust Button parts for the 1991 Buick Park Avenue.

Listed part numbers: PIONEER 500007, PIONEER 500006 and PIONEER 839008, plus the other parts above.

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

10 Connecting Rod Bearing parts are listed for the 1991 Buick Park Avenue, from MAHLE / CLEVITE, KING ENGINE BEARINGS, SEALED POWER and 1 other brand. MAHLE / CLEVITE CB1443A carries the "Popular" badge.

In the High Performance grade, KING ENGINE BEARINGS supplies 2 parts: engineered beyond original-equipment specification. A representative part number is KING ENGINE BEARINGS CR6664XP.

The Standard Replacement section lists 8 options from MAHLE / CLEVITE, SEALED POWER, GM GENUINE and 1 other brand — built to original-equipment specification. MAHLE / CLEVITE CB1443A is listed in this group.

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

4 Conversion / Lower Gasket Set parts are listed for the 1991 Buick Park Avenue, from APEX, FEL-PRO, MAHLE / CLEVITE and 1 other brand.

This group includes APEX ACS3055, FEL-PRO CS9644 and MAHLE / CLEVITE CS5853 and the remaining parts above.

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

One part is listed for the 1991 Buick Park Avenue — ENGINETECH 103500.

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 for the 1991 Buick Park Avenue come from 5 brands — GM GENUINE, ENGINETECH, SEALED POWER and 2 other brands. The "Popular" part is ENGINETECH BC450J.

Listed part numbers: ENGINETECH BC450J, SEALED POWER 7144MA and GM GENUINE 89017698, plus the other parts above.

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

One part is listed for the 1991 Buick Park Avenue — GM GENUINE 24503056.

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

One part is listed for the 1991 Buick Park Avenue — VICTOR REINZ 711348200.

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

7 Crankshaft Repair Sleeve parts for the 1991 Buick Park Avenue come from 5 brands — TIMKEN, WJB / INMOTION PARTS, FEL-PRO and 2 other brands. The "Popular" part is TIMKEN KWK99193.

This group includes TIMKEN KWK99193, WJB / INMOTION PARTS WS99193 and FEL-PRO 16276 and the remaining parts 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

21 Crankshaft Seal parts for the 1991 Buick Park Avenue come from 12 brands — TIMKEN, WJB / INMOTION PARTS, FEL-PRO and 9 other brands. The "Popular" part is FEL-PRO BS40649.

This table covers the Cylinder Head Alignment Dowel pins. Read more

PIONEER supplies the 3 Cylinder Head Alignment Dowel Pin parts for the 1991 Buick Park Avenue.

Part numbers include PIONEER S1110, PIONEER PG225 and PIONEER PG651.

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

5 Cylinder Head Bolt parts are listed for the 1991 Buick Park Avenue, from PIONEER, GM GENUINE and MAHLE / CLEVITE. GM GENUINE 88891770 carries the "Popular" badge.

This group includes GM GENUINE 88891770, MAHLE / CLEVITE GS33233 and PIONEER PG190 and the remaining parts above.

This table covers the Cylinder Head Bolt washers. Read more

One part is listed for the 1991 Buick Park Avenue — PIONEER S1018.

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

5 Cylinder Head Gasket parts are listed for the 1991 Buick Park Avenue, from CORTECO, APEX, FEL-PRO and 2 other brands. CORTECO 20686GR carries the "Popular" badge.

Listed part numbers: CORTECO 20686GR, APEX AHG358 and FEL-PRO 9088PT, plus the other parts above.

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

4 Cylinder Head Gasket Set parts are listed for the 1991 Buick Park Avenue, from APEX, ENGINETECH, FEL-PRO and 1 other brand.

Part numbers include APEX AHS3058, ENGINETECH B38HSGWB and FEL-PRO HS9088PT, among others listed 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

2 Cylinder Head Plug parts for the 1991 Buick Park Avenue come from DORMAN.

This group includes 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 are listed for the 1991 Buick Park Avenue, from MELLING and ENGINETECH.

Listed part numbers: ENGINETECH ESL1101, MELLING CSL138 and MELLING CSL138X, plus the other parts above.

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

2 Engine Block Heater parts for the 1991 Buick Park Avenue come from 2 brands — KAT'S HEATERS and TEMRO.

Part numbers include KAT'S HEATERS 11416 and TEMRO 3100041.

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

2 Exhaust Valve parts for the 1991 Buick Park Avenue come from 2 brands — QUALCAST and SBI.

Listed part numbers: QUALCAST 101710 and SBI 01710.

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

15 Expansion Plug parts are listed for the 1991 Buick Park Avenue, from DORMAN, PIONEER, ENGINETECH and 2 other brands. DORMAN 555077 carries the "Popular" badge.

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

4 Harmonic Balancer parts are listed for the 1991 Buick Park Avenue, from PIONEER, ATP and ULTRA-POWER.

Listed part numbers: ATP 102068, PIONEER DA2312 and PIONEER DA2312HD, plus the other parts above.

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

This group shows a single part: PIONEER HB4121.

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

4 Intake Manifold Gasket parts are listed for the 1991 Buick Park Avenue, from APEX, FEL-PRO, MAHLE / CLEVITE and 1 other brand.

Part numbers include APEX AMS3561, FEL-PRO MS949181 and MAHLE / CLEVITE MS16202, among others listed above.

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

4 Intake Plenum Gasket parts for the 1991 Buick Park Avenue come from 4 brands — APEX, FEL-PRO, MAHLE / CLEVITE and 1 other brand.

Part numbers include APEX AMS3580, FEL-PRO MS95741 and MAHLE / CLEVITE MS16354, among others listed 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

3 Intake Valve parts for the 1991 Buick Park Avenue come from 3 brands — ENGINETECH, QUALCAST and SBI.

Part numbers include ENGINETECH V2274, QUALCAST 101711 and SBI 01711.

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

7 Motor Mount parts for the 1991 Buick Park Avenue come from 6 brands — FAMOUS BRAND, SKP, ANCHOR and 3 other brands. The "Popular" part is SKP SKM2801.

The Economy section lists 3 options from FAMOUS BRAND and SKP — the catalog's value-priced group. SKP SKM2801 is listed in this group.

Standard Replacement: 4 parts, from ANCHOR, DEA / MARMON RIDE CONTROL, PIONEER and 1 other brand. A representative part number is ANCHOR 2801.

Part numbers include SKP SKM2801, FAMOUS BRAND 313527HY and FAMOUS BRAND 2010247478, among others listed above.

This table covers the Motor Mount 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. Read more

This group shows a single part: DEA / MARMON RIDE CONTROL A2801in.

This table covers the Motor Mount kits. Read more

This group shows a single part: ANCHOR 301246.

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

20 Oil parts for the 1991 Buick Park Avenue come from 3 brands — MOBIL, VALVOLINE and IDEMITSU. The "Popular" part is MOBIL 125195.

The Conventional section lists 2 options from VALVOLINE — grouped under the catalog's "Conventional" designation — the notes column spells out what sets them apart. VALVOLINE 797578 is listed in this group.

The Full Synthetic section lists 7 options from MOBIL and VALVOLINE — full-synthetic oils. MOBIL 125195 is listed in this group.

In the High Mileage (>75,000 Miles) grade, MOBIL and VALVOLINE supply 8 parts: oils grouped for high-mileage engines. A representative part number is MOBIL 125201.

The Racing section lists 1 option from IDEMITSU — grouped under the catalog's "Racing" designation — the notes column spells out what sets them apart. IDEMITSU 30018100750 is listed in this group.

The Synthetic Blend section lists 2 options from MOBIL — synthetic-blend oils. MOBIL 124406 is listed in this group.

This table covers the Oil Cooler Mounting kits. Read more

HAYDEN supplies both parts for the 1991 Buick Park Avenue.

Listed part numbers: HAYDEN 238 and HAYDEN 153.

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

One part is listed for the 1991 Buick Park Avenue — ELRING 584210.

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

9 Oil Drain Plug parts for the 1991 Buick Park Avenue come from 4 brands — DORMAN, AGS, ELRING and 1 other brand. The "Popular" part is AGS ODP00016.

Listed part numbers: AGS ODP00016, DORMAN 090052 and DORMAN 090031, plus the other parts 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 are listed for the 1991 Buick Park Avenue, from DORMAN, ULTRA-POWER, MAHLE / CLEVITE and 5 other brands. MAHLE / CLEVITE 2051 carries the "Popular" badge.

This table covers the caps on the oil filler neck. Read more

3 Oil Filler Cap parts for the 1991 Buick Park Avenue come from 3 brands — GATES, MOTORAD and SKP.

Part numbers include GATES 31103, MOTORAD MO99 and SKP SKMO99.

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. Read more

4 Oil Filler Cap Gasket parts are listed for the 1991 Buick Park Avenue, from ELRING, FEL-PRO and GM GENUINE.

Part numbers include ELRING 592250, ELRING 823620 and FEL-PRO 73193, among others listed above.

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. Read more

19 Oil Filter parts for the 1991 Buick Park Avenue come from 12 brands — BOSCH, CHAMP / LUBER-FINER, FRAM and 9 other brands. The "Popular" part is BOSCH 72132WS.

The Economy section: 6 options from BOSCH, CHAMP / LUBER-FINER, FRAM and 3 other brands. BOSCH 72132WS is listed in this group.

The High Performance / Heavy Duty section lists 4 options from ACDELCO, FRAM, MOBIL and 1 other brand — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. ACDELCO UPF47R is listed in this group.

Standard Replacement: 9 parts, from HENGST, ACDELCO, WIX and 5 other brands. A representative part number is ACDELCO PF47E.

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. Read more

2 Oil Filter Adapter Gasket / O-Ring parts are listed for the 1991 Buick Park Avenue, from GM GENUINE and MAHLE / CLEVITE.

Listed part numbers: GM GENUINE 25534742 and MAHLE / CLEVITE B31639.

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. Read more

3 Oil Filter Gasket parts are listed for the 1991 Buick Park Avenue, from APEX, FEL-PRO and VICTOR REINZ.

Listed part numbers: APEX AOM6003, FEL-PRO 70644 and VICTOR REINZ 711350600.

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. Read more

This group shows a single part: WELLS 5S3003.

This table covers the oil pans that hold the engine's oil sump. Read more

6 Oil Pan parts are listed for the 1991 Buick Park Avenue, from SPECTRA PREMIUM, DORMAN, SKP and 2 other brands. DORMAN 264129 carries the "Popular" badge.

This group includes DORMAN 264129, SKP SK264129 and ATP 103107 and the remaining parts above.

This table covers the Oil Pan bolts. Read more

This group shows a single part: PIONEER 854006.

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. Read more

6 Oil Pan Gasket parts for the 1991 Buick Park Avenue come from 5 brands — FEL-PRO, APEX, ELRING and 2 other brands. The "Popular" part is FEL-PRO OS30522T.

Part numbers include FEL-PRO OS30522T, FEL-PRO OS30522R and APEX AOP353, among others listed above.

This table covers the pickup tubes and screens that feed the oil pump. Read more

One part is listed for the 1991 Buick Park Avenue — MELLING 257S.

This table covers the Oil Pump repair kits. Read more

2 Oil Pump Repair Kit parts are listed for the 1991 Buick Park Avenue, from ENGINETECH and MELLING.

Part numbers include ENGINETECH EK135 and MELLING K135.

This table covers the rings that seal each piston to the cylinder wall. Read more

6 Piston Ring parts are listed for the 1991 Buick Park Avenue, from HASTINGS MANUFACTURING, MAHLE / CLEVITE and ENGINETECH. ENGINETECH M96136 carries the "Popular" badge.

The Premium section lists 5 options from HASTINGS MANUFACTURING, MAHLE / CLEVITE and ENGINETECH — a step above OE specification in materials, tolerances or warranty terms. ENGINETECH M96136 is listed in this group.

The Standard Replacement section: 1 option from HASTINGS MANUFACTURING. HASTINGS MANUFACTURING 4458 is listed in this group.

This group includes ENGINETECH M96136, HASTINGS MANUFACTURING 2M4458 and HASTINGS MANUFACTURING 2M4458S and the remaining parts above.

This table covers the pushrods that transfer lifter motion to the rocker arms. Read more

3 Push Rod parts are listed for the 1991 Buick Park Avenue, from ENGINETECH, MELLING and SBI.

Listed part numbers: ENGINETECH EPR384, MELLING MPR384 and SBI 1921491.

This table covers the Supercharger couplings. Read more

This group shows a single part: DORMAN 917022.