Automatic Transmission Case & Related Parts fit your 1988 Pontiac Bonneville

Currently shopping for

1988 Pontiac Bonneville

Change Vehicle

Vehicle Options

6 Cyl 3.8L MFI; 4-Speed Automatic Transmission, THM440-T4/4T60

Vehicle Options

6 Cyl 3.8L MFI; 4-Speed Automatic Transmission, THM440-T4/4T60

Categories Close X

Currently selected

Transmission - Automatic

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

Engine

Frames, Springs, Shocks, Bumpers, Fascias

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

Windshield, Wiper, Mirrors, Instrument Panel, Console, Doors

Parts Questions

Sort by:

Recommended

Part No. & Part Description

Price & Qty.

Part No. &
Part Description

8658375
VALVE, Transmission Vacuum, VALVE,VACUUM MOD

8656613
SEAL, Transmission Oil Suction Tube, SEAL,AUTOMATIC TRANSMISSION FLUID FILTER(O RING)(PART OF 58)(*01,03,05,06)
$11.43 $6.90
1
Add To Cart

8631211
SEAL, Transmission Oil Pump, SEAL,AUTOMATIC TRANSMISSION FLUID PUMP DRIVE SHAFT(*01,02,03,05,06)(4.123)
$6.69 $4.24
1
Add To Cart

8644924
COVER KIT, Transmission Governor, COVER KIT,W/SEAL,GOVERNOR

PLATE, Transmission Main Control Valve Body

24201706
PLATE, VALVE BODY SPACER (1988-8BKH)
$26.04 $12.60
1
Add To Cart
24201706
PLATE, VALVE BODY SPACER (1988-8FBH)
$26.04 $12.60
1
Add To Cart
24201705
PLATE, VALVE BODY SPACER (1988-8FSH)
$23.78 $12.60
1
Add To Cart
24201658
PLATE, VALVE BODY SPACER (1989-9PAH)
24201661
PLATE, VALVE BODY SPACER (1989-9BHH)
24201696
PLATE, VALVE BODY SPACER (1987-7FBH)
24201699
PLATE, VALVE BODY SPACER (1987-7HAH)
8662623
PLATE, VALVE BODY SPACER (1987-7HCH)
8668430
PLATE, VALVE BODY SPACER (1989-9BJH)

24208456
SCREEN, Transmission Oil Pump, SCREEN,AUTOMATIC TRANSMISSION FLUID PUMP OUTLET
$10.38 $6.49
1
Add To Cart

24239049
MAGNET, Transmission Oil Pan, MAGNET,AUTOMATIC TRANSMISSION FLUID PAN
$12.11 $7.68
1
Add To Cart

8678679
PAN, Transmission Oil Pan, PAN,AUTOMATIC TRANSMISSION FLUID
$65.24 $27.43
1
Add To Cart

GASKET, Transmission Oil Pan

8668028
GASKET, OIL PAN (PART OF 58)(1989)(*05,06)
8668028
GASKET, OIL PAN (PART OF 58)(1988)(*05,06,10)
8656396
GASKET, OIL PAN (PART OF 58)(1988)(*01,03,09)
8656396
GASKET, OIL PAN (PART OF 58)(1987)(*01,03)

10054241
SEAL, Transmission Converter, SEAL,MOD O RING (PART OF 19)(*02,03,04,06,07)
$2.27 $1.36
1
Add To Cart

GOVERNOR, Transmission Governor

24201432
GOVERNOR, (W/ROTOR)(1989)(3.33R)(INCLUDE 4,8,74))
$49.92 $21.01
1
Add To Cart
24201422
GOVERNOR, W/ROTOR (1989)(2.97R)(INCLUDE 4,8,74)
24201431
GOVERNOR, AUTOMATIC TRANSMISSION(1989(2.84R)(INCLUDE 4,8,74))
8662919
GOVERNOR, W/ROTOR (1988-8BJH)(INCLUDE 4,8,74)

24203263
SCREEN, Transmission Main Control Valve Body, SCREEN,TORQUE CONVERTER CLUTCH SOLENOID VALVE(4.122)
$12.60
1
Add To Cart

CONNECTOR, Transmission Converter

24209559
CONNECTOR, W/SEAL(ELECTRIC)(1988-8BJH,BKH)
$16.69 $10.47
1
Add To Cart
24209559
CONNECTOR, W/SEAL(ELECTRIC)(1989)
$16.69 $10.47
1
Add To Cart
8662395
CONNECTOR, W/SEAL(ELECTRIC)(1987)
8662395
CONNECTOR, W/SEAL(ELECTRIC), CONVERTER CLUTCH ELECTRIC-W/SEALS (1988-8FBH,FJH,FSH)

8644516
BEARING, Transmission Oil Pump, BEARING,AUTOMATIC TRANSMISSION FLUID PUMP DRIVE SHAFT(W/SLEEVE)
$19.98 $12.52
1
Add To Cart

8644902
GASKET KIT, Transmission Auxiliary Valve Body Cover, GASKET KIT,CASE SIDE COVER(INCLUDE 65)(*02,03,05,06)
$60.41 $36.51
1
Add To Cart

VALVE, Transmission Main Control Valve Body

8675034
VALVE, CONTROL (1989-9BJH)
$726.11 $548.15
1
Add To Cart
8662642
VALVE, CONTROL (1987-7FJH)
8662650
VALVE, CONTROL (1987-7HAH)
8662804
VALVE, CONTROL (1988-8FSH)
8668463
VALVE, CONTROL (1989-9PAH)

10049690
BOLT, Fuel Tank Evaporator/Purge Control, BOLT, PUMP COVER TO CASE (M6X1.0X85) 9.8 PLAIN

11508406
BOLT, Button Head Torx, BOLT, BUTTON HEAD TORX (M8X1.25X90) 9.8 PLAIN

11508963
SCREW, SCREW, PAN HEAD TORX MACHINE (M6X1X30) 9.8 PLAIN

PUMP, Transmission Oil Pump

24202301
PUMP, OIL (1987)(1988-8FBH,FJH,FSH)
24202302
PUMP, OIL (1988-8BJH,BKH)(1989)

FILTER, Transmission Oil Suction Tube

24228949
FILTER, OIL (INCLUDE 57,63)(1987-88)(*07,09)
24228950
FILTER, AUTOMATIC TRANSMISSION FLUID(1988-89)(INCLUDE 57,63)(*08,10)

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

8631328
SLEEVE, Transmission Governor, SLEEVE,GOVERNOR SHAFT

SEAL, Transmission Governor

8632588
SEAL, GOVERNOR SHAFT(PART OF 5)(*01,03,05,06)
8660545
SEAL, GOVERNOR COVER(O RING)(PART OF 5)(*01,03,05,06)

8635490
BEARING, Transmission Governor, BEARING,GOVERNOR THRUST

8644171
CLIP, Transmission Servo & Accumulator, CLIP,PUMP HARNESS 2-WIRE(NYLON COATED OVAL)

8646949
GASKET, Transmission Main Control Valve Body, GASKET,CONTROL VALVE BODY SPACER PLATE(INCLUDE 32)

8656072
LINK, Transmission Throttle Valve, LINK,THROTTLE VALVE CABLE

8656395
WASHER, Transmission Case, WASHER,OIL PAN SIDE COVER (6.5X14X1.2)(6 USED)

8656624
SHAFT, Transmission Oil Pump, SHAFT,A/TRAN OIL PUMP DRIVE

8658109
SEAL, Transmission Solenoid, SEAL,TORQUE CONVERTER CLUTCH SOLENOID VALVE SCREEN

8658208
SCREEN, Transmission Clutch, SCREEN,3RD CLUTCH EXHAUST

8658294
BOLT, Transmission Case, BOLT,AUTOMATIC TRANSMISSION CASE COVER

8658300
LEVER, Transmission Throttle Valve, LEVER,THROTTLE VALVE(W/BRACKET)

8658445
CLIP, Transmission Throttle Valve, CLIP,CONDUIT(THROTTLE VALVE BRACKET)

8662391
SEAL, Transmission Oil, SEAL,3-2 COASTDOWN

CLIP, Chassis/Engine Wiring Harness

8662394
CLIP, AUTOMATIC TRANSMISSION WIRING HARNESS(PUMP BODY)(4.115)
8668271
CLIP, AUTOMATIC TRANSMISSION WIRING HARNESS(PUMP HARNESS-2 WIRE)(METAL)

8662842
PLATE, Transmission Oil Pump, PLATE,RELEASE COVER (W/PIPE)

8662967
MODULATOR, Transmission Vacuum, MODULATOR,VACUUM(NO VALVE INCLUDED) (INCLUDE 18)

8667680
BOLT, BOLT,HEXAGON WASHER HEAD,M6X1X7.4(AS REQUIRED)

HARNESS, Transmission Servo & Accumulator

8668268
HARNESS, PUMP WIRE (1988-8BJH,BKH)
8668268
HARNESS, PUMP WIRE (1989)
8668269
HARNESS, PUMP WIRE (1987)(1988-8FBH,FJH,FSH)

8685537
COVER, Transmission Main Control Valve Body, COVER,CONTROL VALVE BODY

104918
BALL, 1/4" DIAMETER,CHROME STEEL(6.3MM)(AS REQUIRED)
$0.07 $0.04
10
Add To Cart

8919354
CONDUIT, ELECTRIC (15 FT X .350 INSIDE DIAMETER)
$53.12 $33.77
1
Add To Cart

11516075
NUT, HEX FLANGED HEAD SELF LOCK,M6X1,7.7THK,14.2 O.D.,9,PHOSPHATE ZINC ORGANIC(CASE SIDE COVER)(AS REQUIRED)
$2.95 $1.87
10
Add To Cart

11503870
BOLT, HEXAGON HEAD (M6X1.0X35) 10.9 PC
$3.92 $2.49
1
Add To Cart

11508687
STUD, HEXAGON (M8X1.25X20) 10.9 PHOSPHATE ZINC ORGANIC
$14.85 $8.98
1
Add To Cart

11509418
BOLT, HEXAGON (M8X1.25X30) 9.8 ZINC COATED (1989)
$7.38 $4.69
1
Add To Cart

11509418
BOLT, HEXAGON (M8X1.25X30)9.8 ZINC COATED(1987-7HAH,HCH)(1988-8FBH)
$7.38 $4.69
1
Add To Cart

11514753
BOLT, PLATE/VALVE BODY (M6X1X16) 9.8 ZINC COATED (DIPPED OR PLATED)
$7.21 $4.36
1
Add To Cart

11514895
SCREW, PAN HEAD CROSS RECESS (M6X1X45)
$10.58 $6.69
1
Add To Cart

15614709
SCREW, SIDE COVER (M8X1.25X21.5) 9.8 PHOSPHATE ZINC ORGANIC (17 USED)
$9.86 $6.26
1
Add To Cart

15614709
SCREW, OIL PAN (M8X1.25X21.5) 9.8 PHOSPHATE ZINC ORGANIC
$9.86 $6.26
1
Add To Cart

11503484
BOLT, PUMP BODY TO CASE (M8X1.25X95) 9.8 PH

11508172
SCREW, PAN HEAD TORX (M6X1.0X60) 9.8 PLAIN

11509555
BOLT, VALVE BDY TO CASE (M8X1.25X70) 10.9 PC

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 1988 Pontiac Bonneville 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 3.8L. Model Code: LE 4 DOOR, SE 4 DOOR, SSE 4 DOOR.