Automatic Transmission Case & Related Parts fit your 1991 GMC C2500

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1991 GMC C2500
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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
Maintenance Parts, Fluids, Capacities, Electrical Connectors
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Starter, Generator, Ignition, Electrical, Lamps
Transmission - Manual
Categories Close X

Currently selected

Other Categories

Body Mounting, Air Conditioning, Audio/Entertainment
Brakes
Brakes, Rear Axle, Propeller Shaft, Wheels, Tires
Cab And Body Structure, Mirrors, Doors, Trim, Seat Belts, Wipers
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
Maintenance Parts, Fluids, Capacities, Electrical Connectors
Rear Body Structure, Moldings & Trim, Cargo Stowage
Starter, Generator, Ignition, Electrical, Lamps
Transmission - Manual
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Recommended
Part No. & Part Description
Price & Qty.
Part No. &
Part Description
  • GASKET, Transmission Oil Pan
    8654799
    GASKET, OIL PAN (ALSO PART OF 71)(*KIT1,KIT2)
    $12.46 $7.81
    1
    Add To Cart
  • 8677743
    GASKET, AUTOMATIC TRANSMISSION OIL PAN
    $79.23 $46.74
    1
    Add To Cart
  • 8654382
    Steering, Plug,Automatic Transmission Fluid Pressure Test Hole
    $7.20 $4.57
    1
    Add To Cart
  • PISTON, Transmission Servo & Accumulator
    GMC 8642613
    8642613
    PISTON, 2ND APPLY (.55)(PINK)(W/5.7K,6.2C)
    $91.17 $34.05
    1
    Add To Cart
  • GMC 8642478
    8642478
    PISTON, 4TH APPLY
    $61.73 $38.70
    1
    Add To Cart
  • GMC 8642614
    8642614
    PISTON, 2ND APPLY (.48)(GREEN)(W/4.3Z,5.0H)
    $48.05 $17.51
    1
    Add To Cart
  • GMC 8678537
    8678537
    PISTON, FRONT SERVO
  • SEAL, Transmission Input and Turbine Shaft
    GMC 24212987
    24212987
    SEAL, O-RING, TURBO SHAFT TO SELECTOR WASHER(*KIT1,KIT2)
    $11.32 $7.19
    1
    Add To Cart
  • 8661760
    SEAL, PUMP FRONT
    $10.62 $6.66
    1
    Add To Cart
  • SEAL, Oil Pan Pump Suction
    8656613
    SEAL, FILTER NECK
    $11.43 $6.90
    1
    Add To Cart
  • GMC 8657767
    8657767
    SEAL, O-RING, OIL FILTER TO PUMP (ALSO PART OF 71)(*KIT1,KIT2)
  • SEAL, Speedometer Driven Gear
    15552872
    SEAL, SPEEDOMETER DRIVEN GEAR SLEEVE (C1,2)(*KIT1,KIT2)
    $4.09 $2.49
    5
    Add To Cart
  • 25518664
    SEAL, SPEEDOMETER DRIVE GEAR (O RING)(K1,2)(*KIT1,KIT2)
    $7.50 $3.86
    1
    Add To Cart
  • PIN, Reverse Brake Band
    GMC 8680500
    8680500
    PIN, 2ND APPLY (3 RINGS)(2.67-.68)
    $21.20 $13.29
    1
    Add To Cart
  • GMC 8680499
    8680499
    PIN, 2ND APPLY (2 RINGS)(2.61-.62)
    $30.80 $19.31
    1
    Add To Cart
  • 8680501
    PIN, 2-4 BAND SERVO PISTON(NO GROOVE)(2.72-.73)(4.228)
    $33.36 $20.16
    1
    Add To Cart
  • GASKET, Transmission Front Servo
    12337931
    GASKET, OIL PUMP COVER TO CASE(*KIT1,KIT2)
    $33.52 $20.25
    1
    Add To Cart
  • 8677782
    GASKET, OIL PUMP COVER TO CASE(*KIT1,KIT2)
    $14.33 $8.66
    1
    Add To Cart
  • SEAL, Transmission Extension
    1358899
    SEAL, EXTENSION TO CASE(*KIT1,KIT2)
    $4.09 $2.62
    5
    Add To Cart
  • GMC 24235725
    24235725
    SEAL, CASE EXTENSION (C318 W/5.7K,7.4N)
    $30.88 $18.66
    1
    Add To Cart
  • GMC 24235725
    24235725
    SEAL, CASE EXTENSION (C310,314 W/5.7K,7.4N & C5B)
    $30.88 $18.66
    1
    Add To Cart
  • BOLT, Transmission Front Servo
    GMC 24206031
    24206031
    BOLT, OIL PUMP TO CASE (WITH O-RING)(7 REQUIRED)(*KIT1,KIT2)
    $1.13 $0.68
    1
    Add To Cart
  • GMC 24233361
    24233361
    BOLT, W/WASHER, OIL PUMP TO CASE (M8X1.25X60)(7 REQUIRED)(*KIT1,KIT2)
    $4.69 $2.83
    1
    Add To Cart
  • RING KIT, Front Servo Piston
    GMC 24232073
    24232073
    RING KIT, 2-4 BAND SERVO 2ND APPLICATION PISTON FLUID SEAL(W/5.7K & 6.2C,J)(INCLUDE 23)(*03)
    $20.02 $12.09
    1
    Add To Cart
  • GMC 8642957
    8642957
    RING KIT, 2-4 BAND SERVO 2ND APPLICATION PISTON FLUID SEAL(W/4.3N,Z & 5.0H)(INCLUDE 24)(*03)
    $7.99
    1
    Add To Cart
  • CONNECTOR, Transmission Oil Cooler
    8637742
    CONNECTOR, OIL COOLER PIPES TO CASE (2 REQUIRED)
    • Replaced By: 19435221
    $75.89 $12.60
    1
    Add To Cart
  • 8637742
    CONNECTOR, INVERTED FLARED TUBE (2 REQUIRED)
    • Replaced By: 19435221
    $75.89 $12.60
    1
    Add To Cart
  • VALVE, Transmission Rear Ring Gear
    GMC 8663890
    8663890
    VALVE, AUTOMATIC TRANSMISSION FLUID/PUMP COVER BALL CHECK(DOUBLE ORIFICE W/BALL)
    $12.60
    1
    Add To Cart
  • GMC 8663890
    8663890
    VALVE, AUTOMATIC TRANSMISSION FLUID/PUMP COVER BALL CHECK
    $12.60
    1
    Add To Cart
  • CONVERTER, Transmission Converter
    GMC 8691904
    8691904
    CONVERTER, TRANS (REMANUFACTURED)(1988 W/4.3Z)
    $451.66 $286.49
    1
    Add To Cart
  • GMC 8691904
    8691904
    CONVERTER, TRANS (REMANUFACTURED)(1991 W/4.3Z TRANS CODE KAM)
    $451.66 $286.49
    1
    Add To Cart
  • GMC 8689960
    8689960
    CONVERTER, TRANS (REMANUFACTURE)(W/7.4N)
    $690.98 $439.28
    1
    Add To Cart
  • GMC 8690904
    8690904
    CONVERTER, TRANS (REMANUFACTURE)(W/4.3Z)
    • Replaced By: 24217613
    $693.80 $441.07
    1
    Add To Cart
  • GMC 8691906
    8691906
    CONVERTER, TRANS (REMANUFACTURED)(W/6.2J)
    $409.56 $259.86
    1
    Add To Cart
  • GMC 8691912
    8691912
    CONVERTER, TRANS (REMANUFACTURED)(1990-91 K1,2 W/5.0H.5.7K)
    $433.55 $275.05
    1
    Add To Cart
  • GMC 8690903
    8690903
    CONVERTER, TRANS (REMANUFACTURE)(W/5.7K,6.2J)
  • GMC 8691910
    8691910
    CONVERTER, TRANS (REMANUFACTURED)(1988-90 W/4.3Z,1991 W/4.3Z TRANS CODE KMM)
  • GMC 8691911
    8691911
    CONVERTER, TRANS (REMANUFACTURED)(1989-91 C1,2 W/5.0H,5.7K)
    $441.80 $280.27
  • GMC 8691911
    8691911
    CONVERTER, TRANS (REMANUFACTURED)(1988 CK1,2 W/5.0H,5.7K)
    $441.80 $280.27
  • GMC 8691911
    8691911
    CONVERTER, TRANS (REMANUFACTURED)(1989 K1,2 W/5.0H,5.7K)
    $441.80 $280.27
  • GASKET, Transmission Main Control Valve Body
    GMC 24201115
    24201115
    GASKET, CONTROL VALVE BODY
    $11.75 $7.46
    1
    Add To Cart
  • GMC 24201115
    24201115
    GASKET, VALVE BODY TO SPACER PLATE(*KIT1,KIT2)
    $11.75 $7.46
    1
    Add To Cart
  • GMC 8684205
    8684205
    GASKET, CASE TO SPACER PLATE(*KIT1,KIT2)
    $11.38 $7.12
    1
    Add To Cart
  • GASKET KIT, Transmission Overhaul
    GMC 24201804
    24201804
    GASKET KIT, W/SEALS (INCLUDE 2,5,8,9,14,17,21,23,24,34,35,39,42,49,52,53,60,61,70,71,72,94)(*03)
    $206.64 $118.73
    1
    Add To Cart
  • 24202110
    GASKET KIT, SEALS & GASKETS (INCLUDE 3,5,6,15,45,47,48,63,66)(*01)
  • SEAL, Transmission Front Servo
    24202535
    SEAL, PUMP FRONT (ALSO PART OF 7)(*KIT1,KIT2)
    $13.95 $8.43
    1
    Add To Cart
  • GMC 24208664
    24208664
    SEAL, PUMP TO CASE BOLT O-RING (7 REQUIRED)
    $3.81 $2.28
    1
    Add To Cart
  • GMC 24210605
    24210605
    SEAL, OIL PUMP TO CASE (ALSO PART OF 7)(*KIT1,KIT2)
    $10.28 $6.21
    1
    Add To Cart
  • GMC 24210605
    24210605
    SEAL, OIL PUMP TO CASE(*KIT1,KIT2,KIT3)
    $10.28 $6.21
    1
    Add To Cart
  • RING, Transmission Servo & Accumulator
    GMC 24232065
    24232065
    RING, SERVO COVER RETAINING
    $11.81 $7.12
    1
    Add To Cart
  • GMC 8626884
    8626884
    RING, FRONT SERVO SPRING RETAINER
  • SEAL, Rear Bearing Retaining
    GMC 24236132
    24236132
    SEAL, CASE EXTENSION (C309 W/5.7K,7.4N)
    $14.11 $8.52
    1
    Add To Cart
  • 8673526
    SEAL, EXTENSION OIL(*KIT1,KIT2)
    $10.80 $6.53
    1
    Add To Cart
  • SEAL, Transmission Rear Main Bearing
    GMC 24236132
    24236132
    SEAL, CASE EXTENSION (C310,314 W/5.7K,7.4N & C7A,C7E)
    $14.11 $8.52
    1
    Add To Cart
  • GMC 24236132
    24236132
    SEAL, CASE EXTENSION (C2 W/4.3Z,5.7K,7.4N)
    $14.11 $8.52
    1
    Add To Cart
  • 8681168
    SEAL, AUTOMATIC TRANSMISSION CASE EXTENSION(C)(*KIT1,KIT2)(4.515)
    $12.51 $7.56
    1
    Add To Cart
  • PLUG, Transmission Case
    GMC 8611710
    8611710
    PLUG, DIRECT OIL GALLERY (.25 DIAMETER CUP)
    $8.34 $5.02
    1
    Add To Cart
  • GMC 8611710
    $8.34 $5.02
    1
    Add To Cart
  • GMC 9427692
    9427692
    PLUG, REAR LUBE (K)
    $9.45 $5.59
    1
    Add To Cart
  • GMC 8628864
    8628864
    PLUG, CASE SERVO & ACCUMULATOR (2 REQUIRED)
    $3.32 $2.11
  • PIN, Transmission Rear Servo Accumulator
    GMC 8627192
    8627192
    PIN, REAR BAND APPLY (3.328-3.334)(#2)
    $25.85 $13.51
    1
    Add To Cart
  • GMC 8624139
    8624139
    PIN, REAR BAND APPLY (3.300-3.306)(#1)
  • GMC 8624140
    8624140
    PIN, REAR BAND APPLY (3.356-3.362)(#3)
  • GMC 8624141
    8624141
    PIN, REAR BAND APPLY (3.412-3.418)(#5)
  • GMC 8627193
    8627193
    PIN, REAR BAND APPLY (3.384-3.390)(#4)
  • GMC 8627194
    8627194
    PIN, REAR BAND APPLY (3.440-3.446)(#6)
  • GMC 8627195
    8627195
    PIN, REAR BAND APPLY (3.468-3.474)(#7)
  • RING, Front Servo Piston
    GMC 8626423
    8626423
    RING, OIL SEAL(*KIT1)
    $10.68 $6.78
    1
    Add To Cart
  • 8635568
    RING, OIL SEAL (1-2 ACCUMULATOR PISTON)(*KIT1,KIT2,KIT5)
    $6.50 $5.67
    1
    Add To Cart
  • 8635568
    RING, OIL SEAL (3-4 ACCUMULATOR PISTON)(*KIT1,KIT2,KIT5)
    $6.50 $5.67
    1
    Add To Cart
  • GMC 8642480
    8642480
    RING, 4TH APPLY PISTON OUTER OIL SEAL(*KIT1,KIT2)
    $11.47 $7.28
    1
    Add To Cart
  • RING, Transmission Planet Carrier
    8642105
    RING, 2ND APPLY PISTON RETAINING
    $14.24 $9.06
    1
    Add To Cart
  • 8675524
    RING, SNAP, SEAL RETAINER (3 REQUIRED)
  • SEAL, Front Servo Piston
    GMC 8642112
    8642112
    SEAL, O-RING, SERVO PISTON INNER HOUSING(*KIT1,KIT2)
    • Replaced By: 24208661
    $10.33 $6.56
    1
    Add To Cart
  • GMC 8647351
    8647351
    SEAL, O-RING (2ND & 4TH SERVO COVER)(ALSO PART OF 15)(*KIT1,KIT2)
    • Replaced By: 24208662
    $11.75 $7.09
    1
    Add To Cart
  • COVER, Transmission Servo & Accumulator
    8642979
    COVER, 2-4 SERVO(W/SEAL)(INCLUDE 14)(4.241)
    $35.14 $22.01
    1
    Add To Cart
  • GMC 8683543
    8683543
    COVER, W/PINION, 1-2 ACCUMULATOR
  • BOLT, Transmission Main Control Valve Body
    GMC 8676222
    8676222
    BOLT, SPECIAL (M6X1.0)(6 REQUIRED)
    $9.11 $5.50
    1
    Add To Cart
  • GMC 8667680
    8667680
    BOLT, HEXAGON WASHER HEAD,M6X1X7.4(AUXILIARY CONTROL VALVE BODY)(AS REQUIRED)
  • BOLT, Transmission Servo & Accumulator
    GMC 8675533
    8675533
    BOLT, ACCUMULATOR HOUSING TO VALVE BODY (SHORT)(5 REQUIRED)
    $9.05 $5.47
    1
    Add To Cart
  • GMC 8680876
    8680876
    BOLT, ACCUMULATOR HOUSING TO VALVE BODY (LONG)
    $8.44 $5.08
    1
    Add To Cart
  • GMC 8667821
    8667821
    BOLT, SPECIAL HEX WASHER HEAD (M6X1X24)
  • VALVE, Transmission Solenoid
    GMC 10478101
    10478101
    VALVE, W/SEAL, CONVERTER CLUTCH (TYPE 19)(1989-91 W/6.2C)
  • GMC 24235642
    24235642
    VALVE, W/SEAL, CONVERTER CLUTCH (TYPE 18)(1988 2ND DESIGN W/4.3Z,5.0H,5.7K)
  • GMC 24235642
    24235642
    VALVE, W/SEAL, CONVERTER CLUTCH (TYPE 18)(1989-91 W/4.3Z,5.0H,5.7K)
  • GMC 8654130
    8654130
    VALVE, W/SEAL, CONVERTER CLUTCH (TYPE 10)(1988 W/6.2C)
  • GMC 8654415
    8654415
    VALVE, W/SEAL, CONVERTER CLUTCH (TYPE 15)(1988 1ST DESIGN W/4.3Z,5.0H,5.7K)
  • SPRING, Transmission Rear Servo Accumulator
    GMC 8623667
    8623667
    SPRING, LOW & REV ACCUMULATOR PISTON(W/4.3Z)(4.246)
  • GMC 8624391
    8624391
    SPRING, LOW & REV ACCUMULATOR PISTON(W/5.7K,6.2J)
  • GMC 8670753
    8670753
    SPRING, REAR ACCUMULATOR (C310,314 W/7.4N,C7A,C7E)
  • GMC 8670753
    8670753
    SPRING, REAR ACCUMULATOR (C209,309 W/7.4N)
  • GMC 8670753
    8670753
    SPRING, LOW & REV ACCUMULATOR PISTON(K2,3 W/7.4N)(4.246)
  • GMC 8675778
    8675778
    SPRING, LOW & REV ACCUMULATOR PISTON(GREEN/ORANGE OR VIOLET)(C318 W/7.4N ))(4.246)
  • GMC 8675778
    8675778
    SPRING, LOW & REV ACCUMULATOR PISTON(GREEN/ORANGE OR VIOLET)(C310,314 W.7.4N,C5B)(4.246)
  • PLUG, Transmission Main Control Valve Body
    GMC 8647185
    8647185
    PLUG, CLUTCH & ACCUMULATOR PRESSURE (1/4X18 PIPE)(1988)
  • GMC 8654381
    8654381
    PLUG, CLUTCH & ACCUMULATOR PRESSURE
  • CLIP, Chassis/Engine Wiring Harness
    GMC 8673068
    8673068
    CLIP, AUTOMATIC TRANSMISSION WIRING HARNESS(1989-91)(4.197)
  • GMC 8673068
    8673068
    CLIP, AUTOMATIC TRANSMISSION WIRING HARNESS(1988)(4.197)
  • 8675539
    CLIP, AUTOMATIC TRANSMISSION WIRING HARNESS
  • 11588711
    BOLT, HEX FLANGED HEAD (M6X1X13, 9.8 PHOSPHATE ORGANIC)(AS REQUIRED)
    $7.39 $4.69
    1
    Add To Cart
  • 11561025
    BOLT, HEX FLANGED HEAD,M6X1X16,13.5 THREAD,14.2 OUTSIDE DIAMETER,GMW25 STEEL,GMW3200,MACHINE,HEADER POINT(2 REQUIRED)(AS REQUIRED)
    $9.15 $5.81
    1
    Add To Cart
  • 11515756
    BOLT, HEX FLANGED HEAD, M8X1.25X20,17THD,18 O.D.,10.9,7114M(17 REQUIRED)(AS REQUIRED)
    $7.50 $4.76
    10
    Add To Cart
  • GMC 11515262
    11515262
    BOLT, HEX FLANGED HEAD,M6X1X55,18THD,14.2 O.D.,9.8,PC(AS REQUIRED)
    $6.04 $3.84
    1
    Add To Cart
  • 15614709
    BOLT, W/CONICAL WASHER (M8X1.25X20, 9.8 ZO)(AS REQUIRED
    $9.86 $6.26
    1
    Add To Cart
  • GMC 11503428
    11503428
    BOLT, HEXAGON (M10X1.5X27, 9.8 PH)(AS REQUIRED)
    $7.38 $4.69
    1
    Add To Cart
  • GMC 11503870
    11503870
    BOLT, HEXAGON (M6X1X35, 10.9)(AS REQUIRED)
    $3.92 $2.49
    1
    Add To Cart
  • GMC 11503870
    11503870
    BOLT, HEXAGON M6X1X35 10.9 PC(VALVE BODY TO CASE)(AS REQUIRED)
    $3.92 $2.49
    1
    Add To Cart
  • GMC 11506078
    11506078
    BOLT, HEX FLANGED HEAD (M6X1X65, 9.8 PLAIN)(AS REQUIRED)
    $13.09 $8.32
    1
    Add To Cart
  • 11508687
    BOLT, HEXAGON,M8X1.25X20,16.88THD,10.9,PHOSPHATE ZINC ORGANIC(AS REQUIRED)
    $14.85 $8.98
    1
    Add To Cart
  • GMC 88959957
    88959957
    RING, REAR PARKING BRAKE LEVER RETAINER(CLIP, RETAINING)(BOTTOM)(AS REQUIRED)
    $12.60
    1
    Add To Cart
  • 9415640
    RETAINER, SNAP RING BOWED EXTERNAL FITS SHAFT (7/16)(AS REQUIRED)
    $7.24 $4.51
    1
    Add To Cart
  • GMC 104919
    104919
    BALL, 5/16 CHROME STEEL(AS REQUIRED)
    $3.49 $2.18
    1
    Add To Cart
  • GMC 120385
    120385
    WASHER, 1/4 INSIDE DIAMETER,9/16 OUTSIDE DIAMETER,3/64 THICK,ZINC COATED(FLAT STEEL)(AS REQUIRED)
    $0.56 $0.36
    1
    Add To Cart
  • GMC 8639743
    8639743
    BOLT, HEXAGON W/CONICAL WASHER (M6X1X15, 9.8 PHOSPHATE ZINC ORGANIC)(AS REQUIRED)
    $12.60
    1
    Add To Cart
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the wholesale prices for genuine 1991 GMC C2500 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 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 7.4L. Model Code: C2500 EXTENDED CAB LONG BOX, C2500 EXTENDED CAB STANDARD BOX, C2500 REGULAR CAB.