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GMC C1500 Automatic Transmission Extension Housing Seal Replacement

1
SELECT Year
  1. ✓ In Stock 1979-1990 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    1979-1990 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 9613S
    $6.69 View part →
  2. ✓ In Stock 1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    Partslink #: 9613S
    $7.12 View part →
  3. ✓ In Stock 1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: SO-22

    Position: Housing To Case O-Ring, Square-Cut - Rear Bearing Retainer To Case O-Ring

    $8.86 View part →
  4. ✓ In Stock 1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 760009

    Position: Housing To Case O-Ring, Square-Cut - Rear Bearing Retainer To Case O-Ring

    $8.88 View part →
  5. ✓ In Stock 1982-1986 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    1982-1986 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    Partslink #: 4583

    Non Booted

    $9.74 View part →
  6. ✓ In Stock 1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: JO-57

    w/o Boot Width: 0.5625" Outer Diameter: 2.9375" Inner Diameter: 2.0625"

    $10.47 View part →
  7. ✓ In Stock 1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 759023

    w/o Boot Width: 0.5625" Outer Diameter: 2.9375" Inner Diameter: 2.0625"

    $10.69 View part →
  8. ✓ In Stock 1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 9449
    $11.16 View part →
  9. ✓ In Stock 1979-1996 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    1979-1996 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: HO-9

    W/O Boot; W/Flange; W/O Extension Width: 0.5" Outer Diameter: 2.6875" Inner Diameter: 1.75" Position: Output

    $11.72 View part →
  10. ✓ In Stock 1979-1996 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1979-1996 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 759016

    W/O Boot; W/Flange; W/O Extension Width: 0.5" Outer Diameter: 2.6875" Inner Diameter: 1.75" Position: Output

    $11.74 View part →
  11. ✓ In Stock 1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    1979-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    Partslink #: 9449
    $12.47 View part →
  12. ✓ In Stock 1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 4583

    with GMC 4L60-E Transmission without Boot

    $12.64 View part →
  13. ✓ In Stock 1996 GMC C1500 Automatic Transmission Extension Housing Seal - Rear (ACDelco)

    1996 GMC C1500 Automatic Transmission Extension Housing Seal - Rear (ACDelco)

    Partslink #: 24236132
    $19.37 View part →
  14. ✓ In Stock 1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 4934

    Boot Type with GMC 4L60-E Transmission

    $20.00 View part →
  15. ✓ In Stock 1995-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    1995-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    Partslink #: W0133-2343376
    $25.24 View part →
  16. ✓ In Stock 1993-1998 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    1993-1998 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: CO-36

    w/ Boot

    $26.24 View part →
  17. ✓ In Stock 1993-1998 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1993-1998 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 759115

    w/ Boot

    $26.26 View part →
  18. ✓ In Stock 1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 759099

    w/ Boot Width: 1.625" Outer Diameter: 3.125" Inner Diameter: 2.0625"

    $28.29 View part →
  19. ✓ In Stock 1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: JO-124

    w/ Boot Width: 1.625" Outer Diameter: 3.125" Inner Diameter: 2.0625"

    $28.31 View part →
  20. ✓ In Stock 1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 4333N

    Boot Type 1.500 (in) Width with GMC 4L80-E Transmission

    $32.72 View part →
  21. ✓ In Stock 1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (Timken)

    Partslink #: 4333N

    Booted

    $37.54 View part →
  22. ✓ In Stock 1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    1991-1999 GMC C1500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 2457

    Over 15,000 (lb) Gross Vehicle Weight (GVW) without Boot

    $54.78 View part →

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Automatic Transmission Extension Housing Seal Compatibility for GMC C1500

Browse our selection of quality automatic transmission extension housing seal parts designed specifically for your GMC C1500. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.

Available Trims

Base · Heavy Half · High Sierra · Sierra · Sierra Classic · Sierra GT · Sierra Grande · Sierra SL · Sierra SLE · Sierra SLT · Sierra SLX · Sierra Special · Street Coupe

Body Types

Cab & Chassis · Extended Cab Pickup · Standard Cab Pickup

Engine Options

L6 4.1L · L6 4.8L · V6 4.3L · V8 5.0L · V8 5.7L · V8 6.2L · V8 6.5L · V8 6.6L · V8 7.4L

Transmissions

Automatic · Manual

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