Go-Parts
Cart 0
Your cart is empty
Add an item to see it appear here.

GMC G3500 Automatic Transmission Extension Housing Seal Replacement

1
SELECT Year
  1. ✓ In Stock 1979-1990 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    1979-1990 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 9613S
    $6.69 View part →
  2. ✓ In Stock 1979-1995 GMC G3500 Automatic Transmission Extension Housing Seal (Timken)

    1979-1995 GMC G3500 Automatic Transmission Extension Housing Seal (Timken)

    Partslink #: 9613S
    $7.12 View part →
  3. ✓ In Stock 1979-1995 GMC G3500 Automatic Transmission Extension Housing Seal (ATP)

    1979-1995 GMC G3500 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 1979-1995 GMC G3500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1979-1995 GMC G3500 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 1979-1994 GMC G3500 Automatic Transmission Extension Housing Seal (ATP)

    1979-1994 GMC G3500 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 →
  6. ✓ In Stock 1979-1994 GMC G3500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1979-1994 GMC G3500 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 →
  7. ✓ In Stock 1979-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    1979-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 9449
    $11.16 View part →
  8. ✓ In Stock 1979-1995 GMC G3500 Automatic Transmission Extension Housing Seal (ATP)

    1979-1995 GMC G3500 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 →
  9. ✓ In Stock 1979-1995 GMC G3500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1979-1995 GMC G3500 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 →
  10. ✓ In Stock 1979-1996 GMC G3500 Automatic Transmission Extension Housing Seal (Timken)

    1979-1996 GMC G3500 Automatic Transmission Extension Housing Seal (Timken)

    Partslink #: 9449

    1.89 in. Shaft

    $12.47 View part →
  11. ✓ In Stock 1991-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    1991-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 4583

    with GMC 4L60-E Transmission without Boot

    $12.64 View part →
  12. ✓ In Stock 1991-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    1991-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 4934

    Boot Type with GMC 4L60-E Transmission

    $20.00 View part →
  13. ✓ In Stock 1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    Partslink #: W0133-2343999
    $21.09 View part →
  14. ✓ In Stock 1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (Autopart International)

    1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (Autopart International)

    Partslink #: W0133-3481005
    $22.96 View part →
  15. ✓ In Stock 1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (Timken)

    1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (Timken)

    Partslink #: W0133-2343376
    $25.24 View part →
  16. ✓ In Stock 1993-1995 GMC G3500 Automatic Transmission Extension Housing Seal (ATP)

    1993-1995 GMC G3500 Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: CO-36

    w/ Boot

    $26.24 View part →
  17. ✓ In Stock 1993-1995 GMC G3500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1993-1995 GMC G3500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 759115

    w/ Boot

    $26.26 View part →
  18. ✓ In Stock 1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    Partslink #: W0133-2343375
    $27.59 View part →
  19. ✓ In Stock 1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    Partslink #: W0133-2343376
    $27.78 View part →
  20. ✓ In Stock 1992-1996 GMC G3500 Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1992-1996 GMC G3500 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 →
  21. ✓ In Stock 1992-1996 GMC G3500 Automatic Transmission Extension Housing Seal (ATP)

    1992-1996 GMC G3500 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 →
  22. ✓ In Stock 1991-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    1991-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 4333N

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

    $32.72 View part →
  23. ✓ In Stock 1992-1996 GMC G3500 Automatic Transmission Extension Housing Seal (Timken)

    1992-1996 GMC G3500 Automatic Transmission Extension Housing Seal (Timken)

    Partslink #: 4333N

    Booted

    $37.54 View part →
  24. ✓ In Stock 1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    Partslink #: W0133-2312082
    $42.96 View part →
  25. ✓ In Stock 1991-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    1991-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 2457

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

    $54.78 View part →
  26. ✓ In Stock 1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    1995-1996 GMC G3500 Automatic Transmission Extension Housing Seal (National)

    Partslink #: W0133-1727208
    $58.81 View part →

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

Racing Partner Videos

Automatic Transmission Extension Housing Seal Compatibility for GMC G3500

Browse our selection of quality automatic transmission extension housing seal parts designed specifically for your GMC G3500. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.

Available Trims

Magnavan · Rally · Rally Camper Special · Rally Custom · Rally STX · Vandura · Vandura Special

Body Types

Cutaway Van · Extended Cargo Van · Extended Passenger Van · Standard Cargo Van · Standard Passenger Van

Engine Options

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

Transmissions

Automatic · Manual

Added to cart · Part