Dana Spicer 50637 Differential Pinion Seal Dana 60 Axle

The Dana Spicer 50637 is a genuine OE-quality differential pinion seal designed for the Dana 60 axle. As a true OEM part, it delivers the same fit, performance, and leak-stopping reliability as the original seal it replaces — with no modifications required.

Constructed from durable rubber with a flanged face and rubber sealant coating on the outer diameter, this pinion oil seal provides a secure, long-lasting barrier against gear oil leaks at the differential pinion shaft. It is manufactured in the U.S.A. to meet or exceed the original equipment specifications set by Dana.

Key Features:

• Inner Diameter (ID): 1.875 in.
• Outer Diameter (OD): 3.50 in. (approx. 3.165 in. at seal face)
• Material: Rubber construction with flanged face
• Rubber sealant coating on outer diameter for a secure housing fit
• Genuine Spicer OE part — designed, engineered, and manufactured to OE standards
• Made in the U.S.A.
• Direct replacement — no trimming or modification required

OEM Cross-Reference Numbers:

• Chrysler: 05019843AA
• General Motors: 88982399
• Ford: 1C2Z-4676-AA
• Navistar: DS50637
• National: 50637
• UPC: 023913145767

This pinion seal ships as a single seal. It is the correct replacement for Dana 60 rear differentials and is a trusted choice for trucks, SUVs, and off-road vehicles equipped with the heavy-duty Dana 60 axle.