Part # 5278

Joint du carter

Name: Joint du carter
Brand: National
SKU: BCZK_5278
Availability: InStock

Fits Ford, DeTomaso, Mercury — 446 vehicle applications

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Free ShippingOrders $99+

WarrantyManufacturer backed

Easy Returns30-day policy

Canadian OwnedShipped across Canada

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National 5278 Vehicle Fitment

Fits 446 vehicles

This Joint du carter fits Ford, DeTomaso, Mercury vehicles.

1997 Ford F-250 HD
1996 Ford Econoline Super Duty
1995 Ford Mustang
1987-1991 Ford LTD Crown Victoria
1983-1986 Ford LTD
1980-1996 Ford Bronco
1977-1996 Ford E-350 Econoline Club Wagon
1977-1991 Ford E-250 Econoline Club Wagon
1975-1996 Ford E-150 Econoline
1975-1996 Ford E-150 Econoline Club Wagon
1975-1996 Ford E-250 Econoline
1975-1996 Ford E-350 Econoline
1975-1996 Ford F-150
1975-1983 Ford E-100 Econoline Club Wagon
1975-1977 Ford P-500
1975-1976 Ford P-400
1972-1983 Ford E-100 Econoline
1972-1974 Ford E-200 Econoline
1972-1974 Ford E-300 Econoline
1965-1997 Ford F-350
1965-1996 Ford F-250
1965-1983 Ford F-100
1965-1976 Ford P-350

National 5278 Specifications

Part Description: Oil Seal
Unit of Dimension: Inch
Material: PTFE
Inside Diameter: 95.250
Outside Diameter: 114.450
Width: 0.362

National 5278 Product Description

National 5278 Moteur – Joint de vilebrequin pour Ford F-150

Key Features

Delivers quality and reliable performance for every type of repair
Design type: springless; multi-lip
Excellent dry running capabilities
Low coefficient of friction
Temperature range: -100°F to 450°F / -73°C to 232°
Bajo coeficiente de fricción
Excelentes capacidades de funcionamiento en seco
Ofrece un rendimiento confiable de calidad para cada tipo de reparación
Rango de temperatura: -100°F a 450°F / -73°C a 232°
Tipo de diseño: Sin resorte; Multi-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 5278. Eligible orders over $99 may qualify for free shipping, with some exceptions.

Ratings & Reviews

4.7out of 5

Based on 47 reviews

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 5278

What vehicles does the National 5278 fit?

The National 5278 fits 25 vehicle applications including 1997 Ford F-250 HD, 1965-1997 Ford F-350, 1980-1996 Ford Bronco, 1996 Ford Econoline Super Duty, 1975-1996 Ford E-150 Econoline and 20 more. Check the full fitment list above to confirm your vehicle.

What are the shipping options for the National 5278?

Shipping options for the National 5278 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.

What is the price of the National 5278?

For current pricing on the National 5278, please call us at 1-866-461-2787. Availability and final order details are confirmed before checkout is completed.

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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