Automatic Transmission Case & Related Parts fit your 1985 Chevrolet P20

Currently shopping for

1985 Chevrolet P20

Change Vehicle

Categories Close X

Currently selected

Transmission - Automatic

Other Categories

Body Mounting, Air Conditioning, Audio/Entertainment

Brakes

Brakes, Rear Axle, Propeller Shaft, Wheels, Tires

Cooling System, Grille, Oil System

Engine

Frames, Springs, Shocks, Bumpers, Fascias

Front Axle, Front Suspension, Steering

Front End Sheet Metal, Heater

Fuel System, Exhaust, Emission System

Starter, Generator, Ignition, Electrical, Lamps

Transmission - Manual

Parts Questions

Sort by:

Recommended

Part No. & Part Description

Price & Qty.

Part No. &
Part Description

8654382
PLUG, Engine Coolant Recovery, PLUG, CASE HEXAGON
$7.20 $4.72
1
Add To Cart

104918
BALL, Transmission Clutch, BALL (6.3MM), GRADE 2 (DIAMETER 1/4)(AS REQUIRED)
$0.07 $0.04
10
Add To Cart

8629526
PIPE, Oil Pan Pump Suction, PIPE, OIL INTAKE
$51.24 $30.95
1
Add To Cart

8679994
PAN, Transmission Oil Pan, PAN,AUTOMATIC TRANSMISSION FLUID

24239049
MAGNET, Transmission Case, MAGNET, OIL PAN CHIP COLLECTOR
$12.11 $7.68
1
Add To Cart

BUSHING, Transmission Extension

6260048
BUSHING, CASE EXTENSION(1985-88)
$7.32 $4.63
1
Add To Cart
8626901
BUSHING, CASE EXTENSION

8633408
PIPE, Transmission Case, PIPE, VENT
$11.02 $6.67
1
Add To Cart

8637742
CONNECTOR, Transmission Oil Cooler, CONNECTOR,OIL COOLER PIPES TO CASE (2 REQUIRED)
- Replaced By: 19435221
$75.89 $12.60
1
Add To Cart

8655625
GASKET, Transmission Oil Pan, GASKET, OIL PAN TO CASE (CELLULOSE)(*01,02,KIT1,KIT2)
$22.94 $13.86
1
Add To Cart

8629935
SOLENOID KIT, Transmission Solenoid, SOLENOID KIT, W/SEAL, DOWN SHIFT

MODULATOR, Transmission Vacuum

8629942
MODULATOR, TRANSMISSION (1985-90)
8629944
MODULATOR, VACUUM (1990 4.3Z)

10054241
SEAL, Transmission Vacuum, SEAL, VACUUM MODULATOR TO CASE O RING (4.338)
$2.27 $1.36
1
Add To Cart

SEAL, Transmission Converter

10054241
SEAL, ELECTRIC CONICAL O RING
$2.27 $1.36
1
Add To Cart
10054241
SEAL, ELECTRIC CONNECT O RING
$2.27 $1.36
1
Add To Cart

24205250
PISTON, Transmission Rear Servo Accumulator, PISTON, REAR ACCUMULATOR
$35.80 $21.62
1
Add To Cart

24210605
SEAL, Transmission Front Servo, SEAL, PUMP TO CASE(*01,02)
$10.28 $6.21
1
Add To Cart

PLUG, Transmission Case

8611710
PLUG, CASE
$8.34 $5.02
1
Add To Cart
8670459
PLUG, CASE (ORIFICED)(1987-89)

SEAL, Rear Bearing Retaining

8623216
SEAL, ADAPTER TO TRANSMISSION (C7L,C7M,C7S)
$4.32 $1.89
3
Add To Cart
8655031
SEAL, CASE EXTENSION (EXCEPT C7L,C7M,C7S)

WASHER, Transmission High Clutch

8623303
WASHER, PUMP COVER TO CLUTCH HOUSING (2.4MM)
$12.30
1
Add To Cart
8623304
WASHER, PUMP COVER TO CLUTCH HOUSING (2.7MM)
$25.19
1
Add To Cart
8623300
WASHER, PUMP COVER TO CLUTCH HOUSING (1.6MM)
8623301
WASHER, PUMP COVER TO CLUTCH HOUSING (1.9MM)
8623302
WASHER, PUMP COVER TO CLUTCH HOUSING (2.1MM)
8623305
WASHER, PUMP COVER TO CLUTCH HOUSING (3.0MM)
8623306
WASHER, PUMP COVER TO CLUTCH HOUSING (3.3MM)

8623430
SEAL, Front Servo Piston, SEAL, REVERSE SERVO PISTON(*01,02,KIT1,KIT2)
$8.89 $5.64
2
Add To Cart

SPRING, Transmission Servo & Accumulator

8623489
SPRING, FRONT SERVO PISTON
$11.97 $7.50
1
Add To Cart
8624256
SPRING, REAR ACCUMULATOR (1989 P3 W/292T)
8624256
SPRING, REAR ACCUMULATOR (1987-88 P3 W/6.2J & C7C,C7E,,C7G,C7J,C7N)
8624256
SPRING, REAR ACCUMULATOR (1987-88 P3 W/350M & C7G)
8624256
SPRING, REAR ACCUMULATOR (1985-86 EXCEPT 454W)
8624256
SPRING, REAR ACCUMULATOR (1987-90 P3 W/5.7K)

RETAINER, Transmission Servo & Accumulator

8623664
RETAINER, REAR PISTON SPRING
$9.43 $5.69
1
Add To Cart
8626881
RETAINER, FRONT SERVO SPRING

8623666
SPRING, Reverse Brake Band, SPRING, REAR SERVO PISTON
$29.36 $17.72
1
Add To Cart

GASKET, Transmission Main Control Valve Body

8670392
GASKET, VALVE BODY TO SPACER PLATE (1985-87)(1988 1ST DESIGN)(*01,02,KIT1,KIT2)
$12.60
1
Add To Cart
8670393
GASKET, CASE TO SPACER (1985-87)(1988 1ST DESIGN)(*01,02,KIT1,KIT2)
$12.60
1
Add To Cart
8670447
GASKET, VALVE BODY TO SPACER PLATE (1988 2ND DESIGN)(1989-90)(*01,02)
$14.89
1
Add To Cart
8623741
GASKET, SOLENOID VALVE(PART OF SOLENOID ASM)
8670458
GASKET, CASE TO SPACER (1988 2ND DESIGN)(1989-90)(*01,02)

8624136
COVER, Transmission Rear Servo Accumulator, COVER, REAR SERVO
$18.75 $13.05
1
Add To Cart

PIN, Transmission Rear Servo Accumulator

8627192
PIN, REAR BAND APPLY (3.331 OL)
$25.85 $13.51
1
Add To Cart
8624139
PIN, REAR BAND APPLY (1 RING)
8624140
PIN, REAR BAND APPLY (2 RINGS)
8624141
PIN, REAR BAND APPLY (3 RINGS)
8627193
PIN, REAR BAND APPLY (3.387 OL)
8627194
PIN, REAR BAND APPLY (3.443 OL)
8627195
PIN, REAR BAND APPLY (3.471 OL)

8624371
RING, Transmission Extension, RING, EXTENSION INTAKE SNAP
$7.73 $3.15
1
Add To Cart

8626423
RING, Front Servo Piston, RING, FRONT SERVO PISTON OIL
$10.68 $6.78
1
Add To Cart

8629523
SPACER, Oil Pan Pump Suction, SPACER, FILTER TO VALVE BODY
$9.45 $6.01
1
Add To Cart

CONVERTER, Transmission Converter

8650915
CONVERTER, TRANSMISSION(REMANUFACTURED)(350M,454W)
$240.05 $167.04
1
Add To Cart
8650905
CONVERTER, TRANSMISSION(REMANUFACTURED)(454W)10500(C7C),11000(C7E),11800(C7J),12800(C7N)
8656942
CONVERTER, TRANSMISSION (REMANUFACTURED)(SEE CATALOG)
8656943
CONVERTER, TRANSMISSION (REMANUFACTURED)(454W)
8656945
CONVERTER, TRANSMISSION (REMANUFACTURED)(4.3Z)
8656948
CONVERTER, TRANSMISSION (REMANUFACTURED)(7.4N,10500(C7C)11000(C7E),11800(C7E),12300(C7N)

SEAL, Transmission Rear Main Bearing

8673526
SEAL, REAR OUTPUT SHAFT EXTENSION OIL (1985-89)(*02,KIT2)
$10.80 $6.53
1
Add To Cart
8655032
SEAL, EXTENSION REAR OIL (C7L,C7M,C7S)

8670381
GASKET, Transmission Governor, GASKET, GOVERNOR COVER(*01,02,KIT1,KIT2)
$4.34 $1.44
1
Add To Cart

8670754
BEARING, Transmission Case Extension, BEARING, EXTENSION (4.176)
$56.72 $30.07
1
Add To Cart

GOVERNOR, Transmission Governor

8679962
GOVERNOR, TRANSMISSION (1990 W/4.3Z)
$122.75 $113.61
1
Add To Cart
8681913
GOVERNOR, AUTOMATIC TRANSMISSION(LL4,M40,C6G,C6N,C6U,C7A)
$154.95 $39.23
1
Add To Cart
8681913
GOVERNOR, AUTOMATIC TRANSMISSION(LL4,M40)
$154.95 $39.23
1
Add To Cart
8679965
GOVERNOR, (1990 W/5.7K,7.4N)
8679965
GOVERNOR, (1987-89 W/292T,350M,454W,5.7K)
8679965
GOVERNOR, (1985-86 EXCEPT 6.2J)
8679975
GOVERNOR, TRANSMISSION (1985-88 W/6.2J)
8679975
GOVERNOR, TRANSMISSION (1989-90 P3 W/6.2J & C7C,C7E,C7G,C7J,C7N,C7L,C7M,C7S,C7P)

FILTER KIT, Oil Pan Pump Suction

12360651
FILTER KIT, OIL PUMP (1985-87)(W/GASKET)(*02,KIT1,KIT2)
12360651
FILTER KIT, OIL PUMP (1988-90)(W/GASKET)

1361618
RING, Speedometer Driven Gear, RING, ACCUMULATOR PISTON INNER OIL SEAL RETAINER

1363951
SEAL, Oil Pan Pump Suction, SEAL, 0-RING, FILTER INTAKE PIPE TO CASE(*01,02)

24204440
OVERHAUL KIT, Transmission Overhaul, OVERHAUL KIT, W/SEALS, GASKETS, PLATES, FILTER (INCLUDE ITEMS #8,21,26,34,39,42,56,58,67,70)(*02)

24205373
CONNECTOR, Transmission Main Control Valve Body, CONNECTOR, SOLENOID VALVE

PISTON, Transmission Servo & Accumulator

24232745
PISTON, REAR SERVO
8678537
PISTON, FRONT SERVO

8623174
GASKET, Transmission Rear Servo Accumulator, GASKET, REAR SERVO COVER(*01,02,KIT1,KIT2)

8623232
PIN, Transmission Governor, PIN, GOVERNOR WEIGHT

SPRING, Transmission Rear Servo Accumulator

8623667
SPRING, LOW & REV ACCUMULATOR PISTON(1987-89 P3 W/6.2J & C6G,C6N,,C6U,C7A)(4.246)
8623667
SPRING, LOW & REV ACCUMULATOR PISTON(1987-89 P2 W/6.2J)(4.246)
8624391
SPRING, LOW & REV ACCUMULATOR PISTON(1987-89 P3 W/454W)
8624391
SPRING, LOW & REV ACCUMULATOR PISTON(1990 P3 W/4.3Z,7.4N)
8624391
SPRING, LOW & REV ACCUMULATOR PISTON(1987-89 P3 W/350M & C7L,C7S)
8624391
SPRING, LOW & REV ACCUMULATOR PISTON(1985-86 W/454W)
8655843
SPRING, LOW & REV ACCUMULATOR PISTON(ORANGE)(1987-90 P3 W/5.7K,454W,C6A,,C6G,C6U,C6N))
8670753
SPRING, REAR ACCUMULATOR (1989-90 P3 W/6.2J,C6A,,C6G,C6U,C6N)

8623744
WASHER, Transmission Rear Servo Accumulator, WASHER, SERVO PISTON

8623941
BUSHING, Transmission Case, BUSHING, CASE

8623978
GASKET, Transmission Front Servo, GASKET, OIL PUMP TO CASE(*01,02,KIT1,KIT2)

PLATE, Transmission Main Control Valve Body

8624461
PLATE, VALVE BODY SPACER (1985-87 5.7K,292T,350M,454W EXCEPT NM8(EXPORT)
8629796
PLATE, VALVE BODY SPACER (1985-87 6.2J EXCEPT C6G,C6N,C6U,C7A)
8661455
PLATE, VALVE BODY SPACER (1990 4.3Z,C6G,C6N,C6U,C7A)
8670452
PLATE, VALVE BODY SPACER (1988-90 6.2J EXCEPT C6G,C6N,C6U,C7A)
8670453
PLATE, CONTROL VALVE BODY SPACER(1987 6.2J,C6G,C6N,C6U,C7A)
8670453
PLATE, VALVE BODY SPACER (1988 6.2J 2ND DESIGN C6G,C6N,C6U,C7A)
8670457
PLATE, VALVE BODY SPACER (1988 5.7K 2ND DESIGN)NM8(EXPORT)
8670796
PLATE, VALVE BODY SPACER (1989 6.2J,C6G,C6N,C6U,C7A)
8670831
PLATE, VALVE BODY SPACER (1989-90 5.7K,7.4N,C7L,C7M,C7S,C7N,C7J,C7E,C7C)
8670875
PLATE, VALVE BODY SPACER (1989-90 5.7K,C5U,C6E,C6G,C6L,C6N,C6U,C7A)

8624709
GASKET, Transmission Rear Main Bearing, GASKET, CASE TO EXTENSION(*01,02,KIT1,KIT2)

8625773
ROLLER, Reverse Shifter Crank, ROLLER, MANUAL DETENT (W/SPRING)

8626879
PIN, Transmission Servo & Accumulator, PIN, FRONT SERVO PISTON

8626884
RING, Transmission Servo & Accumulator, RING, FRONT SERVO SPRING RETAINER

8627509
SCREEN, Transmission Oil, SCREEN,GOVERNOR

8627650
RETAINER, Transmission Vacuum, RETAINER,VACUUM MOD(TO CASE)

8629954
GASKET KIT, Transmission Overhaul, GASKET KIT, W/SEALS (INCLUDE ITEMS #8,21,34,39,42,56,58,67,70)(*02)

CASE, Transmission Case

8629990
CASE, TRANSMISSION (COMPLETE)(2ND DESIGN)
8629990
CASE, TRANSMISSION (COMPLETE)

8633208
BOLT, Oil Pan Pump Suction, BOLT, FILTER TO VALVE BODY

8655026
BOLT, Transmission Oil Pan, BOLT, OIL PAN (13 REQUIRED)

8655026
BOLT, Transmission Governor, BOLT, GOVERNOR COVER (4.196)(4 REQUIRED)

BOLT, Transmission Front Servo

8655280
BOLT, HEXAGON (5/16-18X1.75, 300M)(AS REQUIRED)(*01,02)
9430680
BOLT, HEXAGON (5/16-18X1.75, 300M)(AS REQUIRED)(*01,02)

8670757
BOLT, Lower Sun Gear and Clutch, BOLT, CASE TO CENTER SUPPORT

8679943
VALVE, Transmission Vacuum, VALVE, VACUUM MODULATOR

EXTENSION, Transmission Case

8679957
EXTENSION, TRANSMISSION (1987-90 W/C7L,C7M,C7P,C7S)
8679957
EXTENSION, TRANSMISSION (1985-86 W/JF9)
8679979
EXTENSION, TRANSMISSION (1987-89 EXCEPT C7L,C7M,C7S)
8679979
EXTENSION, TRANSMISSION (1985-86 EXCEPT JF9)

8679989
GEAR, Transmission Governor, GEAR, GOVERNOR DOOR W/PINS

225854
NUT, HEXAGON 3/8-24 ZINC COATED 301M(AS REQUIRED)
$2.31 $1.46
1
Add To Cart

24501365
BOLT, HEXAGON,5/16-18X5/8,ZINC(AS REQUIRED)
$12.24 $7.77
1
Add To Cart

9424320
BOLT, HEX FLANGED HEAD, 3/8 -16 X 1"(AS REQUIRED)
$22.70 $13.73
1
Add To Cart

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 1985 Chevrolet P20 parts. Parts like Automatic Transmission Case & Related Parts are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.8L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel. Model Code: CHASSIS 3/4 TON DELIVERY.