Automatic Transmission Internal Power Train Parts fit your 1990 Buick Skylark

My Vehicle Change Vehicle

1990 Buick Skylark

3-Speed Automatic Transmission, THM125C/3T40

My Vehicle Change Vehicle

1990 Buick Skylark

3-Speed Automatic Transmission, THM125C/3T40

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Transmission - Automatic

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Parts Questions

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Recommended

Part No. & Part Description

Price

Part No. &
Part Description

8628732
VALVE, Transmission Clutch, VALVE,DIRECT CLUTCH HOUSING BALL CHECK(PART OF 610)(4.226)
MSRP: $11.46
$7.26
1
Add To Cart

24200183
INSERT, Transmission Clutch, INSERT, FWD CLUTCH PISTON
MSRP: $5.95
$3.50
1
Add To Cart

24205838
SUPPORT, Transmission Sprocket (Front Wheel Drive), SUPPORT, DOOR SPROCKET (INCLUDE 600,601)
MSRP: --
$211.58
1
Add To Cart

GEAR, Transmission Rear Internal Gear

24209185
GEAR, FINAL DRIVE SUN
MSRP: $133.82
$64.08
1
Add To Cart
8631117
GEAR, FINAL DOOR INTERMEDIATE-W/BUSHING

24240315
BEARING, Transmission Output/Counter Shaft or Carrier, BEARING,FRONT DIFFERENTIAL CARRIER THRUST(TO CASE)
MSRP: $11.39
$6.88
1
Add To Cart

24243762
BUSHING, Transmission Extension, BUSHING,FINAL DOOR INTAKE GEAR
MSRP: $7.23
$4.35
1
Add To Cart

7471003
ROLLER, Transmission Clutch, ROLLER, LOW CLUTCH
MSRP: $44.24
$35.46
1
Add To Cart

WASHER, Transmission Output/Counter Shaft or Carrier

8631227
WASHER, REACTION CARRIER THRUST(4.180)
MSRP: --
$28.94
1
Add To Cart
8631427
WASHER, FRONT DIFFERENTIAL CARRIER THRUST(2.15MM)(INSIDE DIAMETER 7)
MSRP: $7.20
$4.35
1
Add To Cart
8628188
WASHER, REACT CARRIER THRUST
8631062
WASHER, INPUT CARRIER THRUST(TO INPUT SUN GEAR)(4.159)
8631420
WASHER, DIFFERENTIAL CARRIER/CASE THRUST (SELECTOR)(1.45MM)
8631421
WASHER, DIFFERENTIAL CARRIER/CASE THRUST (SELECTOR)(1.55MM)
8631422
WASHER, FRONT DIFFERENTIAL CARRIER THRUST(SELECTOR)(1.65MM)(INSIDE DIAMETER 2)
8631423
WASHER, FRONT DIFFERENTIAL CARRIER THRUST(1.75MM)(INSIDE DIAMETER 3)
8631424
WASHER, FRONT DIFFERENTIAL CARRIER THRUST(1.85MM)(INSIDE DIAMETER 4)
8631425
WASHER, FRONT DIFFERENTIAL CARRIER THRUST(1.95MM)(INSIDE DIAMETER 5)
8631426
WASHER, FRONT DIFFERENTIAL CARRIER THRUST(2.05MM)(INSIDE DIAMETER 6)
8631428
WASHER, DIFFERENTIAL CARRIER/CASE THRUST (SELECTOR)(2.25MM)

BEARING, Transmission Sun Gear

8628962
BEARING, SUN/INTAKE GEAR THRUST
MSRP: $4.10
$2.48
1
Add To Cart
8646254
BEARING, FRONT DIFFERENTIAL CARRIER SUN GEAR THRUST
MSRP: $10.76
$6.50
1
Add To Cart

PLATE, Transmission Clutch

8631026
PLATE, DIRECT CLUTCH-FLAT STEEL
MSRP: $14.79
$6.28
1
Add To Cart
8683084
PLATE, INPUT CLUTCH(FWD)(FLAT STEEL)(*KIT2)
MSRP: $4.12
$2.61
1
Add To Cart
8643741
PLATE, DIRECT CLUTCH (FLAT FACED FIBER)(*02)
8643741
PLATE, FWD CLUTCH-FLAT FACED(*02)
8652562
PLATE, DIRECT CLUTCH BACKING
8664141
PLATE, LOW & REV CLUTCH-WAVED STEEL(*KIT1)
8677034
PLATE, LOW & REV CLUTCH-FLAT FACED(*02,KIT1)
8683085
PLATE, LOW & REV CLUTCH-FLAT STEEL(*KIT1)

8631063
WASHER, Transmission Sun Gear, WASHER, INPUT CARRIER THRUST
MSRP: --
$13.05
1
Add To Cart

WASHER, Transmission Sprocket (Front Wheel Drive)

8631261
WASHER, DRIVE SPROCKET THRUST(2.48MM)(YELLOW)(4.169)
MSRP: --
$23.07
1
Add To Cart
8631258
WASHER, DRIVE SPROCKET THRUST(1.8MM)(WHITE)
8631259
WASHER, DRIVE SPROCKET THRUST(2.08MM)(BLUE)(4.169)
8631260
WASHER, DRIVE SPROCKET THRUST(2.28MM)(RED)
8631262
WASHER, DRIVE SPROCKET THRUST(2.68MM)(GREEN)(4.169)

PISTON, Transmission Clutch

8637973
PISTON, FWD CLUTCH(W/SEALS)(INCLUDE 626-7)
MSRP: $49.17
$44.73
1
Add To Cart
8666659
PISTON, APPLY RING LOW & REV CLUTCH
MSRP: $58.82
$18.83
1
Add To Cart
8652062
PISTON, DIRECT CLUTCH

8652022
SPACER, Transmission Output/Counter Shaft or Carrier, SPACER, FINAL DOOR INTAKE GEAR
MSRP: $28.86
$18.23
1
Add To Cart

8652435
DRUM, Transmission Output/Counter Shaft or Carrier, DRUM, INPUT
MSRP: --
$65.00
1
Add To Cart

HOUSING, Transmission Clutch

8664982
HOUSING, FWD CLUTCH
MSRP: $262.58
$125.72
1
Add To Cart
8653971
HOUSING, DIRECT CLUTCH-W/DRUM (INCLUDE 609,611)

8661949
CARRIER, Final Drive, CARRIER,FRONT DIFFERENTIAL(2.84R)(INCLUDE 679,812-7)(*03)
MSRP: $356.19
$178.16
1
Add To Cart

8666656
HOUSING, Transmission Clutch(Low & Reverse), HOUSING, LOW & REV CLUTCH-W/BUSHING
MSRP: $65.03
$20.83
1
Add To Cart

24200479
CONVERSION KIT, Transmission Clutch, CONVERSION KIT,FWD CLUTCH FEEL(INCLUDES 617,625,633,634)

CARRIER, Transmission Output/Counter Shaft or Carrier

24223647
CARRIER, DIFFERENTIAL (2.39R)(INCLUDE 679,812-7)(*04)
8683633
CARRIER, REACT
8686142
CARRIER, INPUT-COMPLETE

8628222
SPRING, SPRING, LOW & REV CLUTCH RELEASE

WASHER, Transmission Clutch

8631029
WASHER, DIRECT CLUTCH HOUSING THRUST(SUPPORT)(4.169)
8664762
WASHER, INPUT SHIFT THRUST (PART OF 624)

8631048
RING, Transmission Input and Turbine Shaft, RING, INPUT SHAFT OIL SEAL (INCLUDE 623)

RING, Transmission Clutch

8631078
RING, FRONT DIFFERENTIAL CARRIER INTERNAL GEAR RETAINER
8664635
RING, DIRECT CLUTCH APPLY-W/RELEASE SPRING (3.3N)
8664635
RING, DIRECT CLUTCH APPLY-W/RELEASE SPRING (2.3D)
8664636
RING, DIRECT CLUTCH APPLY-W/RELEASE SPRING (2.5U)

8631093
RACE, Transmission Clutch, RACE, LOW ROLLER CLUTCH

8631116
BEARING, BEARING, SUN GEAR/INTAKE GEAR THRUST

8631190
BEARING, Transmission Sprocket (Front Wheel Drive), BEARING, DOOR SPROCKET DRAWN CUP

SPACER, Transmission Clutch

8631241
SPACER, REV CLUTCH HOUSING/LOW RACE (1.05MM)(ORANGE)
8631242
SPACER, REV CLUTCH HOUSING/LOW RACE (1.47MM)(WHITE)
8631243
SPACER, REV CLUTCH HOUSING/LOW RACE (1.89MM)(BLUE)
8631244
SPACER, REV CLUTCH HOUSING/LOW RACE (2.31MM)(PINK)
8631245
SPACER, REV CLUTCH HOUSING/LOW RACE (2.73MM)(BROWN)
8631246
SPACER, REV CLUTCH HOUSING/LOW RACE (3.15MM)(GREEN)

8631429
WASHER, Transmission Planet Carrier, WASHER, DIFFERENTIAL CARRIER/CASE THRUST (SELECTOR)(2.35MM)

RING

8631549
RING, LOW & REV CLUTCH HOUSING RETAINER
8652535
RING, DOOR SPROCKET SUPPORT(*02)

8631571
GEAR, Governor Drive, GEAR,GOVERNOR DRIVE(STEEL)(PART OF 678)

RING, Transmission Sun Gear

8631602
RING, SNAP INPUT DRUM/SUN GEAR (2.32MM)(PINK)
8631603
RING, SNAP INPUT DRUM/SUN GEAR (2.49MM)(BROWN)
8631604
RING, SNAP INPUT DRUM/SUN GEAR (2.66MM)(BLUE)
8631605
RING, SNAP INPUT DRUM/SUN GEAR (2.83MM)(WHITE)
8631606
RING, SNAP INPUT DRUM/SUN GEAR (3.00MM)(YELLOW)
8631607
RING, SNAP INPUT DRUM/SUN GEAR (3.17MM)(GREEN)
8631608
RING, SNAP INPUT DRUM/SUN GEAR (3.34MM)(ORANGE)
8631609
RING, SNAP INPUT DRUM/SUN GEAR (3.51MM)(PLAIN)

GEAR, Transmission Sun Gear

8631845
GEAR, REACT SUN
8652644
GEAR, INPUT SUN

8631900
BUSHING, Transmission Sprocket (Front Wheel Drive), BUSHING, DOOR SPROCKET SUPPORT

BUSHING, Transmission Clutch

8631901
BUSHING, DIRECT CLUTCH DRUM REAR (PART OF 610)
8631902
BUSHING, DIRECT CLUTCH FRONT
8631905
BUSHING, LOW & REV CLUTCH HOUSING

8631903
BUSHING, Transmission Input and Turbine Shaft, BUSHING, INPUT SHAFT (PART OF 622)

8631904
BUSHING, Transmission Input, BUSHING, INPUT INTAKE GEAR (PART OF 637)

8631906
BUSHING, BUSHING,REACTION SUN GEAR

SEAL KIT, Transmission Clutch

8631911
SEAL KIT, DIRECT CLUTCH PISTON (INCLUDE 613,4)(*02)
8631913
SEAL KIT, LOW & REV PISTON OUTER (INCLUDE 652)(*02)
8631986
SEAL KIT, FWD CLUTCH PISTON(INCLUDE 626-7.)

8631927
SPRING, Transmission Clutch, SPRING, FWD CLUTCH RELEASE-W/GUIDE & RETAINER (INCLUDE 630)

8637640
PLUG, Transmission Case, PLUG, BAND ANCHOR HOLE

8652236
GEAR, GEAR,REACTION INTERNAL

8660057
SHAFT, Transmission Output/Counter Shaft or Carrier, SHAFT, FINAL DOOR SUN GEAR

8664957
RING KIT, Transmission Overhaul, RING KIT,RETAINER(INCLUDE 632,650,656,657)(4.180)

8664961
RETAINER, Transmission Clutch, RETAINER,LOW & REV CLUTCH SPRING(INCLUDE 657)(*KIT3)

8677033
PLATE KIT, PLATE,LOW & REV CLUTCH(INCLUDE 658,659,688)

8685538
BAND, Transmission Brake, BAND,INTERMEDIATE

8686140
GEAR, Transmission Input, GEAR, INPUT INTAKE-W/BUSHING (INCLUDE 638)

11501326
RING, SPIRAL PINION RETAINER

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 1990 Buick Skylark parts. Parts like Automatic Transmission Internal Power Train Parts 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.