Whats the id and od for this?

Thank you for your inquiry. The National Pinion Seal 4278 fits a shaft diameter of 1.812" and the seal OD is 3.096"

Does this fit a 1968 ford 8 inch? Thanks

Thank you for the question. Sorry, the National 4278 is not cataloged for this year model vehicle. Additional vehicle information is needed. Please follow catalog listings including fitment notes to determine correct application.

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National 4278 Differential Pinion Seal for 1999 - 2022 Ford F-150

Product ID: 91960423

Details

Brand
National
Item Weight
9.07 g
Liquid Volume
946 ml
Material
Package Information
Bottle

🔥High-temp resistant to 400°F

🚗Fits wide range of Ford models

🛠️Spring-loaded multi-lip design

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Description

🚀 Seal the deal with National – where performance meets precision!

FLUID COMPATIBILITY - Seals effectively against a broad spectrum of automotive fluids for versatile use.
TRUSTED LEGACY BRAND - National’s 75+ years of sealing expertise guarantees premium quality and reliability.
PRECISION FIT FOR FORD - Engineered to fit 1999-2022 Ford F-150 and multiple Transit & Econoline models perfectly.
ADVANCED MULTI LIP SEAL - Spring-loaded design ensures superior leak protection and durability.
UNMATCHED HEAT ENDURANCE - Operates flawlessly from -40°F to 400°F, built for extreme conditions.

The National 4278 Differential Pinion Seal is a premium, spring-loaded multi-lip seal designed for 1999-2022 Ford F-150 and select Transit and Econoline models. Engineered to withstand extreme temperatures from -40°F to 400°F and compatible with various automotive fluids, it delivers reliable, leak-proof performance backed by over 75 years of National’s industry expertise.

Specifications

ASIN	B000C5J0U4
Best Sellers Rank	#44,425 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Differential Seals
Brand Name	National
Container Type	Bottle
Customer Reviews	4.4 4.4 out of 5 stars (210)
Global Trade Identification Number	00724956125289
Included Components	Multi Purpose Seal
Item Form	Grease
Item Weight	9.07 g
Liquid Volume	946 ml
Manufacturer	National
Material	Fluoroelastomer
Model Number	4278
Number of Items	1
Part Number	4278
Recommended Uses For Product	Automotive
Specific Uses For Product	Automotive differentials
UPC	724956125289
Unit Count	1 Count
Upper Temperature Rating	400 °F

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$25.15

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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