National
Automatic Transmission Extension Housing Seal
$27.10
National
Part # 710673
4.7(47 reviews)Joint transm auto
Fits Ford, Lincoln — 21 vehicle applications
Call for Price
Contact us at 1-866-461-2787 for pricing
available
Contact us at 1-866-461-2787 for pricing
Call for PriceFree ShippingOrders $99+
WarrantyManufacturer backed
Easy Returns30-day policy
Canadian OwnedShipped across Canada
Will this fit your vehicle?
Select your vehicle to check fitment.
National 710673 Vehicle Fitment
Fits 21 vehiclesThis Joint transm auto fits Ford Expedition, Ford F-150, Lincoln Navigator vehicles.
2009-2014 Ford Expedition
2009-2014 Ford F-150
National 710673 Specifications
- Housing Bore
- 79.820
- Inside Diameter
- 38.920
- Shaft Diameter
- 1.532
- Material
- Fluoro-Elastomer
- Width
- 8.000
- Housing Bore
- 3.143
National 710673 Product Description
National 710673 Boîte automatique – Carter arrière – Joint pour Ford F-150
Key Features
- Compatible with wide range of fluids
- Delivers quality and reliable performance for every type of repair
- Design type: spring loaded; multi-lip
- Excellent high temperature capabilities
- Temperature range: -40°F to 400°F / -40°C to 204°C
- Compatible con una amplia gama de fluidos
- Excelentes capacidades para altas temperaturas
- Ofrece un rendimiento confiable de calidad para cada tipo de reparación
- Rango de temperatura: -40°F a 400°F / -40°C a 204°C
- 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 Automatic Transmission Extension Housing Seal at Autrex with vehicle fitment details, current pricing, and checkout options for the National 710673. 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 710673
What vehicles does the National 710673 fit?
The National 710673 fits 3 vehicle applications including 2009-2014 Ford Expedition, 2009-2014 Ford F-150, 2009-2014 Lincoln Navigator. Check the full fitment list above to confirm your vehicle.
What are the shipping options for the National 710673?
Shipping options for the National 710673 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 710673?
For current pricing on the National 710673, please call us at 1-866-461-2787. Availability and final order details are confirmed before checkout is completed.
Is the Joint transm auto a direct fit replacement?
Yes, the Joint transm auto 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 transm auto come with?
The Joint transm auto comes with the standard National manufacturer warranty. Please check the product specifications for exact warranty terms.
