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Engine Assembly fit your 1991 Buick Skylark
Currently shopping for
1991 Buick Skylark
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3-Speed Automatic Transmission, THM125C/3T40Vehicle Options
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Part No. & Part Description
Price & Qty.
Part No. &
Part Description
Part Description
$9.02 $5.4010
$46.88 $24.851
$46.88 $24.851
$46.88 $24.851
$46.88 $24.851
$10.24 $6.051
$10.24 $6.051
11515755
BOLT, Engine Lift, BOLT, ENGINE LIFT BRACKET REAR HEX FLANGED HEAD (M8X1.25X14) 10.9 PLATE STEEL$13.52 $13.051
$2.26 $1.641
$2.26 $1.641
- $2.26 $1.641
$12.60 $6.681
- $12.60 $6.681
$2.18 $1.3110
$7.20 $4.921
$15.83 $9.9210
24505924
THERMOSTAT, Engine Coolant Temperature, THERMOSTAT,ENGINE COOLANT(195 DEGREE)(USE TOGETHER WITH 25535126)(LG7)$48.56 $24.361
$5.48 $3.431
- $5.48 $3.431
$2.63 $1.4010
$33.92 $18.91
$33.92 $18.91
$33.92 $18.91
$7.23 $4.5310
25531956
BOLT, Engine Connecting Rod Cap, BOLT,CONNECT ROD(3/8-24X1.68,1.18 THREAD,20R (PART OF 5))(0.659)$3.71 $2.361
$5.19 $3.3012
$6.12 $3.3710
$61.75 $37.311
$25.36 $13.441
$25.36 $13.441
- CAP, Engine Oil Filler
- THERMOSTAT, Engine Coolant Temperature
$20.12 $10.661 - $18.11 $2.041
$12.65 $7.6310
$8.87 $5.641
$31.65 $19.845
$5.47 $3.4715
$5.87 $2.825
24502164
BOLT, Engine Camshaft & Valve Rocker Cover, BOLT,VALVE ROCKER ARM COVER(W/WASHER)(HEX WASHER HEAD,1/4-20X1.0 W/DOG POINT/.85 OUTSIDE DIAMETER SPECIAL BODY WASHER,6010M,PO 6174M)(USE WITH #25534749 GROMMET-GROUP 0.413)(LG7)$5.47 $3.421
$4.18 $2.301
- COVER, Engine Valve Rocker & Camshaft
- GUIDE, Engine Valve Push Rod Cover
$7.75 $4.921
- PUMP, Engine Oil Pump
12554553
PIN, Engine Cylinder Head, PIN,CYL HEAD LOCATING(DOWEL 1/4X9/16)(STEEL)(CHAMFERED ENDS)(LG7)(0.738)$10.74 $6.741
$40.49 $24.461
$12.86 $6.821
24501189
BOLT, Engine Crankshaft Pulley And Balancer, BOLT,CRANKSHAFT BALANCER(TO CRANKSHAFT)(3/4-16X2.7)
$2.84 $1.8110
$4.18 $2.308
$5.36 $3.4010
- 22531637
PIN, Engine Front Cover, PIN,ENGINE FRONT COVER LOCATING(CAM CARRIER AND COVERS TO CYL HEAD)(LD2)(0.413)$5.36 $3.4010
$1.95 $1.2210
$6.32 $2.445
$13.055
$6.30 $4.005
11508600
BOLT, Engine Rear Main Bearing, BOLT, CRANKSHAFT OIL SEAL HOUSING (M6X1X20)- Replaced By: 11517518
$8.28 $5.001
$5.43 $3.451
$3.08 $1.8210
24504922
BOLT, Engine Mounting, BOLT,ENGINE MOUNT STRUT BRACKET(TO CYL HEAD)(HEX FLANGED HEAD M10X1.5X36,FULL THREAD,10.9 PD)(LG7)(8.900)$5.42 $2.8710
$71.89 $42.041
$4.74 $3.451
$13.051
- $31.37 $15.561
$6.06 $4.351
3951644
BOLT, Engine Coolant, BOLT,WATER OUTLET(5/16-18X1.12 280MM PC,.65 OUTSIDE DIAMETER FULL THREAD,PLATE STEEL)(LG7)(8.900)$6.02 $3.825
$8.90 $4.951
$10.28 $6.451
$1.33 $0.85
- GUIDE, Engine Timing
25036807
SENSOR, Coolant Temperature (Engine Unit), SENSOR,COOLANT TEMPERATURE GAGE(1 OR 2 BLADE TERMINAL,3/8-18 THREAD)
$4.26 $2.161
$9.501
$9.501
$24.87 $15.811
$13.051
$53.66 $26.611
- CAP, Engine Valve Spring
$13.051
$13.051
$41.99 $20.821
$30.23 $19.211
$14.49 $7.671
$42.84 $21.251
$3.92 $2.505
- OUTLET, Engine Coolant
10111769
SEAL, Engine Front Cover & Crankshaft Seal, SEAL,CRANKSHAFT FRONT OIL(TO CRANKSHAFT)(L68)- Replaced By: 10243247
$4.35 $2.771
$25.32 $13.051
$13.051
$13.051
10124700
SPROCKET KIT, Engine Timing, SPROCKET KIT,CRANKSHAFT(W/CHAIN)(INCLUDE'S,CROSS/SHIFT SPROCKET,CM/SHIFT SPROCKET,TIMING CHAIN)(L68)$100.88 $50.021
$23.76 $13.051
$32.80 $16.261
- MOTOR, Starter Motor
$7.03 $4.461
$13.051
12334625
GASKET KIT, Engine Camshaft, GASKET KIT,INTAKE CAM CARRIER(CONTAINS INNER/OUTER CAM CARRIER COVER SEALS,CAM SEAL & GASKET BETWEEN CAM CARRIER & CYL HEAD)(INCLUDE 74)(LD2)$36.24 $17.981
$13.051
$13.051
- GASKET KIT, Engine Front Cover
$128.34 $63.641
- $128.34 $63.641
- SHOE KIT, Engine Timing
- $13.051
$31.00 $15.371
$30.00 $18.811
- ROD, Engine Piston
$59.32 $29.421
- BEARING KIT, Engine Connecting Rod
$106.49 $52.801 
$25.21 $15.811
$133.27 $73.291
$71.76 $45.631
$90.52 $44.371
$24.24 $14.651
$9.35 $5.941
- $9.35 $5.941
$61.26 $37.021
$29.45 $14.601
- VALVE, Engine Oil Filter
19244517
SWITCH, Engine Oil Pressure/Temperature, SWITCH, OIL PRESSURE INDICATOR & CHOKE HEATER (GAGE)$46.24 $32.181
$4.18 $2.301
$107.70 $52.181
$0.28 $0.181
$13.051
$8.24 $3.381
$13.051
- PAN, Engine Oil
$2.701
22532248
GASKET, Engine Coolant Thermostat Housing, GASKET,ENGINE COOLANT THERMOSTAT HOUSING(TO CYL HEAD)$13.051
- FLYWHEEL, Engine Crankshaft
$13.59 $13.051
$13.59 $13.051
$81.481
$9.38 $2.851
$28.03 $4.001
$12.601
$31.04 $17.671
$20.28 $16.671
$24.38 $3.471
$8.76 $4.671
$18.41 $5.391
$65.28 $36.301
$8.43 $5.941
$41.26 $33.641
$13.051
$13.051
- BEARING, Engine Camshaft & Balance Shaft Front
- PISTON, Engine Piston
24501365
BOLT, Engine Flywheel, BOLT,FLYWHEEL(TO CRANKSHAFT)(HEXAGON,5/16-18X.635,LOW HEAD W/UNDERCUT,STEEL)(8.900)$38.93 $24.748
$14.88 $4.291
$5.72 $3.5910
$16.46 $10.4610
$25.44 $16.171
$927.68 $151.781
$13.051
$51.11 $13.031
$8.24 $2.961
$1.75 $1.121
$6.67 $4.041
$5.401
$13.051
$0.66 $0.421
- $0.66 $0.421
$16.21 $13.051
444776
PLUG, Engine Cylinder Head, PLUG,ENGINE BLOCK OIL GALLERY(1/4-18 SHORT THREAD,.41 LONG,STEEL,ZINC COATED (DIPPED OR PLATED) 4342M)$7.19 $4.571
$13.051
$60.83 $28.911
$6.101
10029208
KEY, Engine Crankshaft/TIming Gear, KEY,CRANKSHAFT GEAR(4.78MM THICK,19.84 LG,PLN STEEL)(L68)
10044622
BOLT, Engine Valve Adjusting, BOLT, VALVE ROCKER ARM BALL HEX FLANGED HEAD (M8X1.25X36) 10.9 PHOSPHATE
10101410
PLUG, Engine Oil Pan Drain Plug, PLUG,CYL BLOCK OIL GALLERY FRONT(TYPE,14.98 OUTSIDE DIAMETER,1.05 THICK,1.0 HOLE IN CENTER)(L68)
- CAMSHAFT, Engine
10101771
BOLT, Engine Crankshaft Pulley And Balancer, BOLT,CRANKSHAFT BALANCER(HEX FLANGED HEAD,8X1.25X77.5,42 THREAD,18.25 O.D.)(L68)(0.413)
- TUBE, Engine Crankcase Ventilation
10456019
SENSOR, Distributor (also Knock Sensor), SENSOR,ELECTRONIC SPARK CONTROL KNOCK(DETONATION)(BUTTON TYPE TERMINAL,1/4-18 THREAD)
- HARNESS, Cruise Control Vacuum
12338006
BOLT, Engine Cylinder Head, BOLT,CYL HEAD(POSITIVE #1 THROUGH 8)(HEX FLANGED HEAD REDUCED BODY M11X1.5X104.9)(L68)
- 12350074
PUMP KIT, Engine Oil Pump, PUMP KIT,OIL(CONVERTS TO HIGH FLOW OIL PUMP)(REFER TO NOTE 2 IN CATALOG TEXT)(1988 1ST DESIGN)
- 12350074
PUMP KIT, Engine Oil Pump, PUMP KIT,OIL(CONVERTS TO HIGH FLOW OIL PUMP)(REFER TO NOTE 2 IN CATALOG TEXT)(1988 1ST DESIGN)(*02,07)
- PUMP, Engine Oil Pump
12378577
SEALANT, Maintenance Products, SEALANT,PLASTIC VALVE COVER SEALANT(ROOM TEMPERATURE VULCANIZING)(4.76 OUNCE)(85 GRAMS)(AS REQUIRED)
12508076
HOUSING KIT, Engine Crankshaft And Camshaft Balancer, HOUSING KIT,ENGINE BALANCE(COVER & BAFFLE ARE ASM W/SELF-TAPPING BOLTS)(IDENTIFY BY 39 TEETH & 30 DEGREE HELIX ANGLE ON BALANCE GEARS.MUST MESH W/CRANK GEAR.)(1991)(L68)
$8.76 $4.88
- $8.76 $4.88
- STUD, Engine Front Cover
- SPROCKET, Engine Camshaft
- COVER, Engine Front Cover
- 22535455
GASKET KIT, Engine Front Cover, GASKET KIT,TIMING CHAIN HOUSING(GASKETS ARE 0.70 MM THICK)(LD2)
22537750
SPRING, Engine Timing, SPRING,TIMING CHAIN TENSIONER("SERVICE REPLACEMENT ENGINES W/3.40 MM THICK CHAIN HOUSING COVER GASKET CONTAIN A ONE PIECE TENSIONER ASM.THE SHOE & SPRING ARE NOT SERVICED SEPER)(LD2)
- HOUSING, Engine Front Cover
22538202
WASHER, Engine Crankshaft Pulley And Balancer, WASHER,CRANKSHAFT BALANCER(HUB TO CRANKSHAFT(FLAT 18.75 INSIDE DIAMETER,47 ,8 0.D.,5.7TH K,1060,P.C.)(LD2)
- TUBE, Engine Crankcase
22538643
STUD, Multi PORTION Fuel Injection Throttle Body, STUD,THROTTLE BODY(END)(M8X1.25X45XM8X1.25X10)
- PISTON, Engine Piston
- CAMSHAFT, Engine
- CAP, Engine Oil Level
- MANIFOLD, Engine Exhaust Manifold
- TENSIONER, Engine Cooling
- RING KIT, Engine Piston
24501366
BOLT, Engine Camshaft Gear, BOLT,CAMSHAFT SPROCKET(ALSO HOLDS BALANCE SHAFT GEAR(.3 THICK HEXAGON HEAD,1/2-20X1.64,1.49 THREAD W/1.25 OUTSIDE DIAMETER FLAT WASHER,300M,PHOSPHATE HEAVY ZINC))
24501615
BOLT, Engine Camshaft Thrust, BOLT,CAMSHAFT THRUST PLATE(C/SKIRT OVAL, 5/16-18X.75, 280M PC,TORX(T30)
- PIPE, Exhaust Pipe
- PIPE, Heater
24504712
BOLT, Engine Front Cover, BOLT,W/WASHER ENGINE FRONT COVER TO CYL BLOCK(HEXAGON W/.65 OUTSIDE DIAMETER FLAT WASHER,5/16-18 X 3.07,FULL OR 1.0 THREAD,300M,PO)
24504717
STUD, Engine Front Cover, STUD,ENGINE FRONT COVER THROUGH FRONT TO BLOCK(HEXAGON W/.65 OUTSIDE DIAMETER FLAT WASHER,5/16-18X1.53 & .31X.66 W/GROOVE,300M,PC)
- TENSIONER, Engine Timing
24570542
STUD, Intake & Exhaust Manifold, STUD, EXHAUST MANIFOLD (8X1.25X20/8X1.25X30,57) 10.9 PHOSPHATE HEAVY ZINC- Replaced By: 22645039
24571389
PUMP, Engine Coolant, PUMP,WATER(LESS COVER)(REQUIRES WATER PUMP GASKET KIT LISTED IN GROUP 1.079.)(LD2)
24572615
BOLT, Engine Camshaft & Balance Shaft Hole, BOLT,CAMSHAFT HOUSING COVER(TO CYL HEAD(HEX FLANGED HEAD 8X1.25X112,9.8,PLATE STEEL,21.5 OUTSIDE DIAMETER,20MM THREAD))(LD2)
- CRANKSHAFT, Engine
- 24575166
CRANKSHAFT, (P/N 22532120 IS CAST INTO CRANKSHAFT.CHAIN HOUSING COVER GASKET IS 0.70 MM THICK. (1988 1ST DESIGN))(LD2)
25521361
PLUG, Engine Camshaft & Balance Shaft Hole, PLUG, CAMSHAFT REAR BEARING LOCATING (EXPANSION CUP)
25530610
BOLT, Intake Manifold Vacuum, BOLT,VACUUM SOURCE HARNESS MANIFOLD(TO THROTTLE BDY & EGR ADAPT)(M6X1X32)(LG7)
25532090
GASKET, Multi PORTION Fuel Injection Throttle Body, GASKET, THROTTLE BODY (TO INTAKE MANIFOLD)
25532288
STUD, Engine Cooling, STUD,DRIVE BELT TENSIONER(DRIVE BELT TENSION TO HEAD)(W/W 210D,M10X1.5X68,M8X1.25X15,89TL)(LG7)
25532958
STUD, Engine Coolant, STUD,WATER OUTLET(W/WASHER,5/16-18X2.6,M8X1.25X.52,9.8,PLATE STEEL,1050 STEEL,.64 OUTSIDE DIAMETER)(LG7)
25534836
STUD, Engine Lift, STUD,ENGINE LIFT REAR BRACKET(HEX FLANGED HEAD,M10X1.5X20,M8X1.25X15,10.9 PLATE STEEL,FULL THREAD,21.3 OUTSIDE DIAMETER)(LG7)
9441894
BOLT, Engine Oil Pan, BOLT,OIL PAN(HEX FLANGED HEAD,5/16-18X1.00,280M,PC,.65-OUTSIDE DIAMETER)
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the wholesale prices for genuine 1991 Buick Skylark parts. Parts like Engine Assembly are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.3L, 4 Cyl 2.5L, 6 Cyl 3.3L. Model Code: 4 DOOR, CUSTOM 2 DOOR, GRAN SPORT 2 DOOR, LUXURY EDITION 4 DOOR.