×
My Garage
My Account
My Cart
Engine Assembly fit your 1991 Oldsmobile Calais
My Vehicle Change Vehicle
1991 Oldsmobile Calais
3-Speed Automatic Transmission, THM125C/3T40
My Vehicle Change Vehicle
1991 Oldsmobile Calais
3-Speed Automatic Transmission, THM125C/3T40
Categories Close X
You have selected
Other Categories
Body Moldings, Sheet Metal, Rear Compartment Hardware, Roof Hardware
Body Mounting, Air Conditioning, Audio/Entertainment
Brakes
Brakes, Rear Axle, Propeller Shaft, Wheels, Tires
Cooling System, Grille, Oil System
Frames, Springs, Shocks, Bumpers
Front End Sheet Metal, Heater
Front Suspension, Steering
Fuel System, Exhaust, Emission System
Interior Trim, Front Seat Trim, Seat Belts
Maintenance Parts, Fluids, Capacities, Electrical Connectors
Rear Glass, Seat Parts, Adjuster
Rear Seat Trim, Carpet
Starter, Generator, Ignition, Electrical, Lamps
Transmission - Automatic
Windshield, Wiper, Mirrors, Instrument Panel, Console, Doors
Parts Questions
Sort by:
Recommended
Part No. & Part Description
Price
Part No. &
Part Description
Part Description
MSRP: $7.79$4.9510
- SENSOR, Computer Control Sensors
MSRP: $7.01$4.031
- NUT, Exhaust Manifold
MSRP: $7.01$4.031
11515755
BOLT, Engine Lift, BOLT, ENGINE LIFT BRACKET REAR HEX FLANGED HEAD (M8X1.25X14) 10.9 PLATE STEELMSRP: --$13.051
- PIN, Engine Clutch Housing or Transmission
- BOLT, Starter Motor
MSRP: $1.81$1.1510
- PLUG, Engine Cylinder Head
MSRP: $15.41$9.791
MSRP: $114.26$54.391
- THERMOSTAT, Engine Coolant Temperature
MSRP: $35.82$17.651 
MSRP: $19.20$10.701- MSRP: $18.11$11.791
MSRP: $11.34$5.851
- GASKET, Engine Oil Pan Drain Plug
- SEAL, Heater
- BOLT, Engine Connecting Rod Cap
MSRP: --$12.6010
- NUT, Exhaust Manifold Bolt
MSRP: $5.68$3.171
- LIFTER, Engine Valve Lifter
- CAP, Engine Oil Filler
MSRP: $23.64$12.531
MSRP: $23.64$12.531
- PLUG, Engine Oil Pan Drain
MSRP: $7.19$4.351
- VALVE, Engine Crankcase
- FILTER, Engine Oil Filter
MSRP: $22.37$14.225
MSRP: $4.43$2.8115
MSRP: $5.33$2.675
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)MSRP: $5.22$3.311
MSRP: $4.18$2.331
- COVER, Engine Valve Rocker & Camshaft
- GUIDE, Engine Valve Push Rod Cover
- SEAL, Engine Rear Main Bearing
- PIN, Engine Front Cover
- PUMP, Engine Oil Pump
- PIN, Engine Cylinder Head
MSRP: $11.24$6.271
- BOLT, Engine Crankshaft Pulley And Balancer
- COVER, Engine Oil Pump
- BOLT, Intake & Exhaust Manifold
- SPARK PLUG,Glow)
MSRP: $4.18$2.338 
19302726
SPARK PLUG, GASOLINE ENGINE IGNITION(FR3LSK)(CONTAINS SPECIAL THREAD PLATING AND SPARKPLUG BOOT RELEASE AGENTS TO PREVENT DAMAGE TO YOUR ENGINE)(LG0)- Replaced By:19362247
MSRP: $4.18$2.331- Replaced By:
MSRP: $4.18$2.331
- PIN, Engine Camshaft & Valve Rocker Cover
- MSRP: $4.60$2.9210
MSRP: $1.76$1.1210
- SENSOR, Coolant Temperature (Engine Unit)
MSRP: $6.30$4.005
- GASKET, Engine Cylinder Head
- BOLT, Engine Rear Main Bearing
- BOLT, Engine Cylinder Head
- SPRING, Engine Oil Pressure
- STUD, Engine Front Cover
- PLUG, Plug Threaded
- GUIDE, Engine Timing
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)MSRP: $5.28$2.9410
MSRP: $6.06$5.051
3951644
BOLT, Engine Coolant, BOLT,WATER OUTLET(5/16-18X1.12 280MM PC,.65 OUTSIDE DIAMETER FULL THREAD,PLATE STEEL)(LG7)(8.900)MSRP: $6.02$3.825
MSRP: $8.90$4.951
MSRP: --$12.561
- INSERT, Engine Crankshaft Clutch Pilot
- NIPPLE, Intake Manifold Vacuum
- BOLT, Engine Flywheel
- CAP, Engine Valve Spring
- ROD, Engine Valve Push Rod
- SEAL, Engine Valve
- ROD, Engine Piston
- FLYWHEEL, Engine Crankshaft
- VALVE, Exhaust
- GASKET, Manifold to Cylinder Head
- MANIFOLD, Engine Exhaust Manifold
MSRP: --$12.601
- PAN, Engine Oil
- SEAL, Engine Oil Level
- BEARING, Engine Camshaft & Balance Shaft Front
- OUTLET, Engine Coolant
- SEAL, Engine Front Cover & Crankshaft Seal
- PISTON, Engine Piston
- TENSIONER, Engine Timing
- GROMMET, Engine Crankcase
- TUBE, Engine Crankcase Ventilation
MSRP: $7.39$6.951
- SPRING, Engine Valve
- MSRP: $100.88$50.021
- BEARING KIT, Engine Crankshaft MainMSRP: $23.76$13.051
MSRP: $31.00$15.371
MSRP: $29.45$14.601
- BEARING KIT, Engine Connecting Rod
MSRP: $32.80$16.261 
MSRP: $106.49$52.811
MSRP: $23.44$14.901
- SENSOR, Distributor (also Knock Sensor)
- MOTOR, Starter Motor
MSRP: $6.20$3.941
- BOLT, Engine Oil Pump
- WIRE KIT, Spark or Glow Plug Ignition
- GASKET KIT, Engine Camshaft
12334625
GASKET KIT, INTAKE CAM CARRIER(CONTAINS INNER/OUTER CAM CARRIER COVER SEALS,CAM SEAL & GASKET BETWEEN CAM CARRIER & CYL HEAD)(LG0)MSRP: $36.24$17.981 - 12334625
GASKET KIT, INTAKE CAM CARRIER(CONTAINS INNER/OUTER CAM CARRIER COVER SEALS,CAM SEAL & GASKET BETWEEN CAM CARRIER & CYL HEAD)(INCLUDE 74)(LD2)MSRP: $36.24$17.981 - 12334626
GASKET KIT, EXHAUST CAMSHAFT HOUSING(CARRIER EXHAUST)(CONTAINS INNER/OUTER CAM CARRIER COVER SEALS,CAM CARRIER END GASKET & GASKET BETWEEN CAM CARRIER & CYL HEAD)(LG0)MSRP: $30.84$15.291 - 12334626
GASKET KIT, EXHAUST CAMSHAFT HOUSING(CONTAINS INNER/OUTER CAM CARRIER COVER SEALS,CAM SEAL & GASKET BETWEEN CAM CARRIER & CYL HEAD)(INCLUDE 74)(LD2)MSRP: $30.84$15.291
- GASKET KIT, Engine Front Cover
MSRP: $128.34$63.641 - MSRP: $128.34$63.641
- MSRP: $128.34$63.641
- MSRP: $128.34$63.641
- SHOE KIT, Engine Timing
- GASKET, Engine Oil Pan
MSRP: $11.49$10.921
- GASKET KIT, Engine Cylinder Head
MSRP: $191.11$94.771 
MSRP: $191.11$94.771
- PUMP, Engine Coolant
- MSRP: $133.27$74.291
MSRP: $69.87$44.421
MSRP: $9.35$5.941
- STUD, Multi Port Fuel Injection Throttle Body
- VALVE, Engine Oil Filter
MSRP: $58.65$33.701
19244517
SWITCH, Engine Oil Pressure/Temperature, SWITCH, OIL PRESSURE INDICATOR & CHOKE HEATER (GAGE)MSRP: $48.68$29.421
19333510
SEALANT, Maintenance Products, SEALANT, GASKET MAKER (VIBRA-TITE 730)(1.69 OUNCE)(AS REQUIRED)MSRP: $35.84$19.001
- KEY, Engine Valve Spring Cap
- PLUG, Engine Oil Distribution
- NUT, Engine Connecting Rod Bolt
- MSRP: $4.47$2.241
MSRP: $8.24$4.901
- BOLT, Engine Connecting Rod Bolt
- GASKET, Engine Coolant Thermostat Housing
- SEAL, Engine
- SHIELD, Exhaust Manifold
- HOSE, Engine Crankcase
- PIPE, Throttle Body Coolant Supply
MSRP: $28.03$23.211
- HOSE, Engine Crankcase Ventilation
- SEPARATOR, Engine Crankcase
- SCREEN, Engine Oil Pump
- GASKET, Multi Port Fuel Injection Throttle Body
MSRP: $65.28$36.301
- VALVE, Engine Oil Pressure
MSRP: --$13.051
MSRP: $14.88$6.241
- PIPE, Heater
- BOLT, Engine Front Cover
- CHAIN, Engine Timing
- HEAD, Engine Cylinder
- 24570781
BRACKET, Fuel Tank Evaporator/Purge Control, BRACKET,EVAP EMISSION CANISTER PURGE SOLENOID VALVEMSRP: $18.75$13.051
MSRP: --$13.051
- COVER, Engine Coolant Pump
MSRP: --$23.381
MSRP: $13.23$13.051
MSRP: --$13.051
MSRP: $23.03$13.911
- RETAINER, Engine Timing
- KEY
- BRACKET, Engine Lift
- RING KIT, Engine Piston
- PULLEY, Fan and Coolant Pump
- WASHER, Engine Crankshaft Pulley And Balancer
- TUBE, Engine Oil Level
- VALVE, Intake
- CRANKSHAFT, Engine
- 24575166
CRANKSHAFT, (P/N 22532120 IS CAST INTO CRANKSHAFT.CHAIN HOUSING COVER GASKET IS 0.70 MM THICK. (1987-88)(INCLUDES 46))(LD2)
- STUD
- BOLT, Engine Valve Adjusting
- MANIFOLD, Engine Fuel Intake Manifold
- CAMSHAFT, Engine
- COVER, Engine Front Cover
- INDICATOR, Engine Oil Level
- BRACKET
- GASKET, Engine Coolant Pump
- BALANCER, Engine Crankshaft And Camshaft Balancer
- HEATER, Engine Coolant Heater
- HOUSING KIT
- BOLT
- RING
11513805
BOLT, Engine Clutch Driven(Friction Disc), BOLT, HEXAGON (M8X1.25X22) 9.8 PHOSPHATE ORGANIC (8.900)
- HARNESS, Engine Wiring
- PLUG
- PUMP KIT, Engine Oil Pump
- GASKET KIT, Engine Coolant Pump
- TENSIONER, Engine Cooling
- PLATE, Engine Clutch(Pressure Plate)
- PLATE, Engine Clutch Driven(Friction Disc)
MSRP: $66.21$36.92
- GASKET, Engine Camshaft & Valve Rocker Cover
- GEAR, Engine Oil Pump
- BRACE, Generator Mounting
- CLIP, Fuel Line
- SPROCKET, Engine Crankshaft/Timing
- SPROCKET, Engine Camshaft
- BAFFLE, Engine Oil Pan
- BOLT, Engine Main Bearing Cap
- SPRING, Engine Timing
- HOUSING, Engine Front Cover
- SPROCKET, Engine Timing
- TUBE, Engine Crankcase
- HARNESS, Early Fuel Evaporation
- CAP, Engine Oil Level
- GASKET, Intake to Exhaust Manifold
- BOLT, Engine Camshaft Gear
24501615
BOLT, Engine Camshaft Thrust, BOLT,CAMSHAFT THRUST PLATE(C/SKIRT OVAL, 5/16-18X.75, 280M PC,TORX(T30)
- PIPE, Exhaust Pipe
- STUD, Intake & Exhaust Manifold
- BRACE, Engine Oil Pump
- BRACE, Exhaust Manifold
- BOLT, Engine Camshaft & Balance Shaft Hole
- HOUSING, Engine Valve Rocker & Camshaft
- BOLT, Engine Coolant Pump
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)
- STUD, Engine Cooling
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)
MSRP: $7.19$4.571
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the wholesale prices for genuine 1991 Oldsmobile Calais 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: 2 DOOR, 4 DOOR, INTERNATIONAL 2 DOOR, INTERNATIONAL 4 DOOR, S 2 DOOR, S 4 DOOR, SL 2 DOOR, SL 4 DOOR.