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

Product ID: 398959733

Details

Brand
NATIONAL
Item weight
0.02 Pounds
Liquid volume
946
Material
Package information
Bottle

💧Compatible with diverse fluids

🔥Withstands up to 400°F

🛠️Spring-loaded multi-lip design

$45.06

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Description

🔥 Seal the deal with National’s high-temp, high-performance pinion seal!

TRUSTED INDUSTRY LEGACY - Backed by 75+ years of premium sealing innovation.
UNMATCHED HEAT RESISTANCE - Performs flawlessly from -40°F to 400°F, no sweat.
FLUOROELASTOMER DURABILITY - Engineered for longevity and superior chemical resistance.
PRECISION SPRING LOADED SEAL - Multi-lip design ensures a tight, leak-proof fit every time.
VERSATILE FLUID COMPATIBILITY - Seals confidently across a wide range of automotive fluids.

The National 4278 Differential Pinion Seal features a spring-loaded multi-lip design crafted from durable fluoroelastomer, delivering reliable sealing performance across a broad temperature range (-40°F to 400°F). Trusted for over 75 years, it offers exceptional compatibility with various automotive fluids, ensuring long-lasting protection for your vehicle’s differential.

Specifications

ASIN	B000C5J0U4
Brand Name	NATIONAL
Container Type	Bottle
Country of Origin	Mexico
Customer Reviews	4.5 4.5 out of 5 stars (207)
Global Trade Identification Number	00724956125289
Included Components	Multi Purpose Seal
Item Form	Grease
Item Weight	0.02 Pounds
Liquid Volume	946 Milliliters
Manufacturer	Federal Mogul
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 Degrees Fahrenheit

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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$45.06

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered 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 British Virgin Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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