Ford 10.25" & 10.5" 12-Bolt Aluminum Differential Cover Kit - Polished

• Polished aluminum finned cover for Ford 10.25" and 10.5" 12-bolt rear axle housings

• One cover fits both Ford 10.25" and 10.5" axles — same 12-bolt cover pattern

• Drain plug included; gasket and mounting hardware not included — confirm before ordering

• Fits F-150, F-250, F-350, Bronco, and Ford truck builds running the 10.25" or 10.5" rear end

This is a polished aluminum finned differential cover built for Ford 10.25" and 10.5" 12-bolt rear axle housings — two heavy-duty Ford rear ends that share the same 12-bolt cover pattern, allowing one cover to serve both axle sizes. This makes it a common fitment across a wide range of Ford truck and SUV applications including F-150, F-250, F-350, Bronco, and Excursion builds.

The finned aluminum construction dissipates heat more effectively than a flat steel factory cover, helping reduce gear oil temperature during towing, hauling, and sustained performance use. A polished finish adds show-quality appearance for builds where underbody aesthetics matter alongside heavy-duty function.

A drain plug is included. Gasket and mounting hardware are not included — confirm your sealing method (cut gasket or RTV) and source hardware separately before installation. Verify your specific axle model, housing shape, cover bolt pattern, and suspension clearance before ordering. Sold individually.

One Polished Aluminum Cover Fits Both the Ford 10.25" and 10.5" Axle
This finned polished aluminum cover fits both the Ford 10.25" and Ford 10.5" 12-bolt rear axle housings, which share the same cover bolt pattern — giving you a single cover solution across two of Ford's most common heavy-duty rear ends used in F-series trucks, Bronco, and Excursion builds.

Finned Aluminum Dissipates Heat on Heavy-Duty Tow and Haul Applications
Unlike a flat steel factory cover, the finned aluminum design increases surface area to help dissipate heat from gear oil during sustained towing, hauling, and off-road use — conditions where Ford 10.25" and 10.5" axles are most commonly operating at their limits. Aluminum construction also reduces unsprung weight compared to a steel cover.

What axles does this cover fit?
This differential cover is designed for Ford 10.25-inch and 10.5-inch 12-bolt rear axle housings. Both axle sizes share the same 12-bolt cover pattern, allowing this cover to fit either application.

What's the difference between the Ford 10.25-inch and 10.5-inch axle?
The Ford 10.25-inch axle was commonly used in earlier F-Series trucks and Broncos, while the 10.5-inch axle is found in many Super Duty applications. Both use the same 12-bolt differential cover pattern. Verify your specific axle before ordering.

Will this fit a Ford F-150?
Yes. The Ford 10.25-inch rear axle was used in select F-150 models. Confirm your specific axle before purchasing.

Will this fit a Ford F-250 or F-350 Super Duty?
Yes. The Ford 10.5-inch rear axle was commonly used in F-250 and F-350 Super Duty trucks. Verify your axle before ordering.

Does this include a gasket and mounting hardware?
This cover includes a drain plug. A gasket and mounting hardware are not included and must be purchased separately.

Why choose a finned aluminum cover over a standard steel cover?
The finned aluminum design helps dissipate heat more effectively than a conventional steel cover, helping reduce gear oil temperatures during towing, hauling, off-road use, and other heavy-duty applications. Aluminum construction also weighs less than steel.

Will this fit a GM or Chrysler rear axle?
No. This cover is designed specifically for Ford 10.25-inch and 10.5-inch 12-bolt rear axles and is not compatible with GM or Chrysler axle assemblies.

Should I use a cut gasket or RTV to seal this cover?
Follow the sealing method recommended for your axle. Both cut gaskets and RTV silicone are commonly used on Ford 10.25-inch and 10.5-inch rear axle applications.

What material is this cover made from?
This differential cover is manufactured from polished aluminum and features an external finned design for improved heat dissipation.

What should I verify before installing this cover?
Verify the axle model (10.25-inch or 10.5-inch), 12-bolt cover pattern, housing shape, sealing method (gasket or RTV), fill plug location, fluid capacity, and suspension clearance before installation.