National
Differential Pinion Seal
$9.72
National
Part # 5778
4.7(47 reviews)Joint de pignon
Fits Dodge, Isuzu, Excalibur & more — 2,550 vehicle applications
$32.09
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 5778 Vehicle Fitment
Fits 2,550 vehiclesThis Joint de pignon fits Dodge, Isuzu, Excalibur, Checker and 5 more makes vehicles.
1962-1966 Jeep F-134
1961-1969 Jeep Universal Truck
1961-1969 Jeep Universal Truck
1961-1967 Jeep Universal
1961-1967 Jeep Universal
1960-1972 Jeep M151
1959-1965 Jeep CJ3
1959-1965 Jeep CJ3
1957-1966 Jeep F-134
1957-1962 Jeep F4-134
1957-1962 Jeep F4-134
1956-1964 Jeep Utility Wagon
1956-1964 Jeep Utility Wagon
1956-1964 Jeep 6-226
1956-1964 Jeep 6-226
National 5778 Specifications
- Redicoat
- Yes
- Width
- 16.383
- Material
- Polyacrylate
- Outside Diameter
- 3.165
- Outside Diameter
- 80.390
- Series
- 5000
National 5778 Product Description
National 5778 Différentiel – Joint de pignon pour Jeep Wrangler
Key Features
- Delivers quality and reliable performance for every type of repair
- Design type: spring loaded; multi-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; 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 Differential Pinion Seal at Autrex with vehicle fitment details, current pricing, and checkout options for the National 5778. 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 surprisesMarc 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 CanadaJen 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 sideSteve 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 againAmrit 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 againDaniel 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 5778
What vehicles does the National 5778 fit?
The National 5778 fits 50 vehicle applications including 1994-2003 Dodge Ram 1500, 1994-2002 Dodge Ram 2500, 1993-1997 Isuzu Rodeo, 1977-1993 Dodge W150, 1981-1993 Dodge W250 and 45 more. Check the full fitment list above to confirm your vehicle.
What are the shipping options for the National 5778?
Shipping options for the National 5778 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 5778 cost?
The National 5778 is currently listed at $32.09 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 de pignon a direct fit replacement?
Yes, the Joint de pignon 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 de pignon come with?
The Joint de pignon comes with the standard National manufacturer warranty. Please check the product specifications for exact warranty terms.
