National Differential Pinion Seal
Fits Chevrolet, GMC, Isuzu & more — 50 vehicle applications
Pinion Seal
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Review shipping eligibility for this region
- Canadian Owned

National 2043 Vehicle Fitment
Fits 50 vehiclesThis National Differential Pinion Seal fits Chevrolet, GMC, Isuzu, Buick and 2 more makes vehicles.
Fits 1991-1996 Buick Commercial Chassis; 1973-1989 Buick Electra; 1973-1983 Buick Estate Wagon; 1971-1990 Buick LeSabre; 1973-1987 Buick Regal; 1965-1978 Buick Riviera; 1991-1996 Buick Roadmaster; 1975-1979 Buick Skylark. Plus 42 more models listed below.
1996-1997 Chevrolet Express 1500
1995-1997 Chevrolet Tahoe
1994-1997 Chevrolet S10
1992-1997 Chevrolet C1500 Suburban
1992-1997 Chevrolet K1500 Suburban
1991-1994 Chevrolet Commercial Chassis
1989-1991 Chevrolet R1500 Suburban
1989-1991 Chevrolet V1500 Suburban
1988-1997 Chevrolet C1500
1988-1997 Chevrolet K1500
1987-1997 Chevrolet Blazer
1987-1988 Chevrolet R10 Suburban
1987-1988 Chevrolet V10 Suburban
1987 Chevrolet R10
1987 Chevrolet V10
1977-1995 Chevrolet G20
1977-1980 Chevrolet P10
1976-1995 Chevrolet G10
1976-1986 Chevrolet K5 Blazer
1976-1986 Chevrolet C10
1976-1986 Chevrolet C10 Suburban
1976-1986 Chevrolet K10
1976-1986 Chevrolet K10 Suburban
1973-1996 Chevrolet Caprice
1973-1996 Chevrolet Impala
1973-1988 Chevrolet Monte Carlo
1973-1987 Chevrolet El Camino
1973-1981 Chevrolet Bel Air
1973-1981 Chevrolet Camaro
1973-1979 Chevrolet Nova
National 2043 Specifications
- Part Description
- Oil Seal
- Unit of Dimension
- Inch
- Inside Diameter
- 49.280
- Redicoat
- Yes
- Grade Type
- Standard Replacement
- Type
- 47
National 2043 Product Description
National 2043 Differential Pinion Seal for Chevrolet K1500
Key Features
- Delivers quality and reliable performance for every type of repair
- Design type: spring loaded; multi-lip
- Good low temperature capability
- Low swell in hydrocarbon fluids
- Temperature range: -40°F to 225°F / -40°C to 107°C
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
About National
Shop National Differential Pinion Seal at Autrex with vehicle fitment details, current pricing, and checkout options for the National 2043. Eligible orders over $99 may qualify for free shipping, with some exceptions.
Seller reviews
What customers say about buying from Autrex — service, shipping and support. These are reviews of the store, not of this specific part.
- July 2026
Couldn't locate the parts for 2013 Civic Si Sedan. Front struts are an Anomaly found them at Capital autoparts. Great service and great parts. Shipping by CanPar sucked however
- July 2026
Great customer service. I placed an order for wheels and tires and it was an easy transaction. Make sure you read the expected lead times for delivery however. I misread that part, but the order did arrive in the correct timeframe stated. The Hostile rims and Hercules tires look great. Thank you
- July 2026
Awesome
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Frequently Asked Questions — National 2043
What vehicles does the National 2043 fit?
The National 2043 fits 50 vehicle applications including 1987-1997 Chevrolet Blazer, 1988-1997 Chevrolet C1500, 1992-1997 Chevrolet C1500 Suburban, 1996-1997 Chevrolet Express 1500, 1988-1997 Chevrolet K1500 and 45 more. Check the full fitment list above to confirm your vehicle.
How do I confirm the National 2043 fits my vehicle?
Select your year, make, model and engine in the vehicle selector on this page to see a fit or does-not-fit result for the National 2043. If your vehicle has options that change the part (for example brake package or axle), the result lists the questions to check. A parts specialist can also confirm fitment at 1-866-461-2787.
What are the shipping options for the National 2043?
Shipping options for the National 2043 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.
How much does the National 2043 cost?
The National 2043 is currently listed at $21.00 CAD at Autrex. Final price, shipping, taxes, and availability are confirmed during checkout. Call 1-866-461-2787 if you need help before ordering.
Is the National Differential Pinion Seal a direct fit replacement?
Fit depends on the vehicle and its configuration. Select your vehicle and review the fitment result for the National Differential Pinion Seal before ordering.