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Automatic Transmission Extension Housing Seal - Rear (National Bearing) for 1964-2009 AM General, Aston Martin, Avanti, Bentley, Bizzarrini, Buick, Cadillac, Checker, Chevrolet, Excalibur, GMC, Hummer, Jaguar, Jeep, Oldsmobile, Pontiac, Rolls-Royce, & Workhorse NEW

$ 11 .16

Product Notes

Position: Rear
with 3-Speed General Motors THM400 Transmission

Brand: National Bearing
Condition: New
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info



Vehicle Fitment Guide

This part fits the following vehicles:

Make Models
AM General DJ5, Hummer
Aston Martin DB7
Avanti II
Bentley Arnage, Azure, Brooklands, Continental, Corniche, Eight, Mulsanne, T1 Series, T2 Series, Turbo R
Bizzarrini GT America, GT Strada 5300
Buick Centurion, Century, Electra, Estate Wagon, Gran Sport, GS, GS 350, GS 400, GS 455, LeSabre, Regal, Riviera, Skylark, Special, Sportwagon, Wildcat
Cadillac Brougham, Calais, Commercial Chassis, DeVille, Fleetwood, Seville
Checker Aerobus, Marathon, Taxicab
Chevrolet Avalanche 2500, Bel Air, Biscayne, Blazer, Brookwood, C10, C10 Panel, C10 Pickup, C10 Suburban, C1500, C1500 Suburban, C20, C20 Panel, C20 Pickup, C20 Suburban, C2500, C2500 Suburban, C30, C30 Panel, C30 Pickup, C3500, Camaro, Caprice, Chevelle, Chevy II, Corvette, El Camino, Estate, Express 2500, Express 3500, G10, G10 Van, G20, G20 Van, G30, G30 Van, Impala, K10, K10 Pickup, K10 Suburban, K1500, K1500 Suburban, K20, K20 Panel, K20 Pickup, K20 Suburban, K2500, K2500 Suburban, K30, K30 Pickup, K3500, K5 Blazer, Kingswood, Malibu, Monte Carlo, Monza, Nova, P10, P10 Series, P10 Van, P20, P20 Series, P20 Van, P30, P30 Series, P30 Van, R10, R1500 Suburban, R20, R20 Suburban, R2500, R2500 Suburban, R30, R3500, S10, S10 Blazer, Silverado 2500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic, Suburban, Suburban 2500, Tahoe, Townsman, V10, V10 Suburban, V1500 Suburban, V20, V20 Suburban, V2500 Suburban, V30, V3500
Excalibur Phaeton
GMC C15, C15 Suburban, C15/C1500 Pickup, C15/C1500 Suburban, C1500, C1500 Suburban, C25, C25 Suburban, C25/C2500 Pickup, C25/C2500 Suburban, C2500, C2500 Suburban, C35, C35/C3500 Pickup, C3500, G15, G15/G1500 Van, G1500, G25, G25/G2500 Van, G2500, G35, G35/G3500 Van, G3500, Jimmy, K15, K15 Suburban, K15/K1500 Pickup, K15/K1500 Suburban, K1500, K1500 Suburban, K25, K25 Suburban, K25/K2500 Pickup, K25/K2500 Suburban, K2500, K2500 Suburban, K35, K35/K3500 Pickup, K3500, P15, P15/P1500 Van, P1500, P25, P25/P2500 Van, P2500, P35, P35/P3500 Van, P3500, R1500, R1500 Suburban, R2500, R2500 Suburban, R3500, S15 Jimmy, Savana 1500, Savana 2500, Savana 3500, Sierra 1500, Sierra 2500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Sonoma, Sprint, Suburban, V1500, V1500 Suburban, V2500, V2500 Suburban, V3500, Yukon, Yukon XL 1500, Yukon XL 2500
Hummer H1
Jaguar Vanden Plas, XJ12, XJ6, XJS
Jeep Cherokee, CJ3, CJ5, CJ5A, CJ6, CJ6A, CJ7, Commando, Dispatcher, DJ5, DJ6, Gladiator, J-100, J-2500, J-2600, J-2700, J-2800, J-3500, J-3600, J-3700, J-3800, J-4500, J-4600, J-4700, J-4800, J10, J20, Jeepster, M151, Universal, Universal Truck, Wagoneer
Oldsmobile 442, 98, Custom Cruiser, Cutlass, Cutlass Salon, Cutlass Supreme, Cutlass Tiara, Delmont 88, Delta 88, Dynamic 88, F85, Fiesta, Jetstar 88, Jetstar I, Starfire, Super 88, Vista Cruiser
Pontiac Acadian, Beaumont, Bonneville, Catalina, Executive, Firebird, Grand Am, Grand LeMans, Grand Prix, Grand Safari, Grandville, GTO, Laurentian, LeMans, Parisienne, Star Chief, Strato-Chief, Tempest, Ventura
Rolls-Royce Camargue, Corniche, Corniche II, Corniche IV, Corniche S, Flying Spur, Park Ward, Phantom, Silver Dawn, Silver Shadow, Silver Shadow II, Silver Spirit, Silver Spur, Silver Wraith II, Touring Limousine
Workhorse FasTrack FT1061, FasTrack FT1260, FasTrack FT1261, FasTrack FT1460, FasTrack FT1461, FasTrack FT1600, FasTrack FT1601, FasTrack FT1800, FasTrack FT1801, FasTrack FT1802, FasTrack FT931, P30

This is a universal part that fits 9,208 vehicle configurations across 18 makes.

Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.

Interchange Parts

Brand Part Number
ACDelco 293-70
ATP JO57
Checker 011619
Chicago Rawhide 18992
General Motors 12303603
General Motors 8623743
General Motors 8625757
General Motors 8625893
General Motors 8626009
General Motors 8655031
General Motors 8675730
Mopar T3828
Mopar T3951
Sealed Power N18992
Timken 9449
TransTec B29031
Trostel 245A15808.25
Trostel 65501S
Trostel A65501S
Trostel A86227S
Trostel T65501S
Victor Reinz 46433

Fits Years: 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

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120
Day Return Window

4× the Industry Standard

Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

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★★★★★ 4.9 1,451 verified reviews

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