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Joint du carter - main product image
National
Part # 3945
4.7(47 reviews)

Joint du carter

Fits Chevrolet, AM General, Excalibur — 1,630 vehicle applications

$22.14
Only 7 left in stock
1
Express Checkout
Free ShippingOrders $99+
WarrantyManufacturer backed
Easy Returns30-day policy
Canadian OwnedShipped across Canada
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National 3945 Vehicle Fitment

Fits 1,630 vehicles

This Joint du carter fits Chevrolet, AM General, Excalibur vehicles.

  • 1997-1998 Chevrolet B7

  • 1995-1999 Chevrolet C1500 Suburban

  • 1992-1999 Chevrolet C2500 Suburban

  • 1991-2002 Chevrolet C3500HD

  • 1988-2000 Chevrolet C2500

  • 1988-2000 Chevrolet C3500

  • 1988-1998 Chevrolet C1500

  • 1976-1986 Chevrolet K5 Blazer

  • 1975-1986 Chevrolet C10

  • 1975-1986 Chevrolet C20

  • 1975-1986 Chevrolet C30

  • 1973-1994 Chevrolet Blazer

  • 1973-1974 Chevrolet G10 Van

  • 1973-1974 Chevrolet G30 Van

  • 1973-1974 Chevrolet G20 Van

  • 1973 Chevrolet P10 Van

  • 1970-1974 Chevrolet P30 Van

  • 1970-1973 Chevrolet P20 Van

  • 1969-1972 Chevrolet Brookwood

  • 1969-1972 Chevrolet Kingswood

  • 1969-1972 Chevrolet Townsman

  • 1969-1970 Chevrolet Estate

  • 1968-1986 Chevrolet C10 Suburban

  • 1968-1986 Chevrolet C20 Suburban

  • 1968-1974 Chevrolet C10 Pickup

  • 1968-1974 Chevrolet C20 Pickup

  • 1968-1974 Chevrolet C30 Pickup

  • 1968-1974 Chevrolet K10 Pickup

  • 1968-1974 Chevrolet K20 Pickup

  • 1968-1974 Chevrolet K30 Pickup

  • 1968 Chevrolet Chevy II

  • 1967-1972 Chevrolet Camaro

  • 1966-1974 Chevrolet Caprice

  • 1965-1973 Chevrolet Chevelle

  • 1963-1975 Chevrolet Bel Air

  • 1963-1972 Chevrolet Biscayne

National 3945 Specifications

Thickness
10.160
Housing Bore
3.000
Shaft Diameter
2.330
Type
48
Width
0.400
Width
10.160

National 3945 Product Description

National 3945 Moteur – Joint de vilebrequin pour Chevrolet K3500

Key Features

  • Delivers quality and reliable performance for every type of repair
  • Design type: spring loaded; single-lip
  • Low swell in hydrocarbon fluids
  • Resistance to EP lubricants
  • Temperature range: -20°F to 300°F / -29°C to 49°C
  • Baja expansión en fluidos de hidrocarburos
  • Ofrece un rendimiento confiable de calidad para cada tipo de reparación
  • Rango de temperatura: -20°F a 300°F / -29°C a 49°C
  • Resistente a lubricantes EP
  • Tipo de diseño: Carga de resorte; un solo labio

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 Engine Crankshaft Seal at Autrex with vehicle fitment details, current pricing, and checkout options for the National 3945. Eligible orders over $99 may qualify for free shipping, with some exceptions.

Ratings & Reviews

4.7out of 5

Based on 47 reviews

  • 538
  • 46
  • 31
  • 21
  • 11
  • Direct fit, no surprises
    Marc D.Verified BuyerMay 28, 2026

    Lined up perfectly with the original. Install took about an hour with the right press. Solid feel back in the steering, no more clunk over bumps.

    Installed on 2016 Ram 1500

  • Shipped fast across Canada
    Jen P.Verified BuyerMay 14, 2026

    Ordered on a Monday, had it by Wednesday in Calgary. Greasable fitting is a nice touch. Quality looks on par with OEM.

    Installed on 2014 Chevrolet Silverado 1500

  • Good part, double-check your side
    Steve R.Verified BuyerApr 30, 2026

    Works great so far. Just confirm fitment for your exact trim before ordering — the fitment list on the page was accurate for mine.

    Installed on 2017 Ford F-150

  • Quiet again
    Amrit S.Verified BuyerApr 19, 2026

    Replaced both sides at the same time. The knocking noise is completely gone. Boot quality feels durable.

    Installed on 2015 GMC Sierra 1500

  • Would buy again
    Daniel L.Mar 22, 2026

    Second one I've bought from Autrex. Packaging was secure and the part matched the photos exactly.

    Installed on 2013 Dodge Durango

Frequently Asked Questions — National 3945

What vehicles does the National 3945 fit?

The National 3945 fits 38 vehicle applications including 1991-2002 Chevrolet C3500HD, 1992-2001 AM General Hummer, 1988-2000 Chevrolet C2500, 1988-2000 Chevrolet C3500, 1995-1999 Chevrolet C1500 Suburban and 33 more. Check the full fitment list above to confirm your vehicle.

What are the shipping options for the National 3945?

Shipping options for the National 3945 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 3945 cost?

The National 3945 is currently listed at $22.14 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 Joint du carter a direct fit replacement?

Yes, the Joint du carter by National is designed as a direct fit replacement. Use our vehicle selector to confirm compatibility with your specific vehicle.

What warranty does the Joint du carter come with?

The Joint du carter comes with the standard National manufacturer warranty. Please check the product specifications for exact warranty terms.

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