AFE Power Rear Differential Cover, Raw Finish; Street Series

1986 - 2017 Ford Powerstroke

SKU NWD-46-70020


aFe Power's rear differential cover brings performance engineering to the protection of your axle's differential. This differential cover is constructed out of durable cast aluminum with reinforced ribs and machined fins for maximum strength and styling.

This cover comes with all necessary hardware and includes an O-ring for a leak-free seal. This cover fits the Ford F-250/F-350/Excursion 10.25 & 10.50-12 Bolt Axles.

5 Quart Oil Capacity:
This cover has a 5 quart capacity.

Built-in Internal/External Fins:
Built-in internal and external fins transfer heat from the fluid to the outside air for maximum cooling.

Magnetic Drain Plug: 
This system incorporates a magnetic drain plug to capture loose particles for maximum rear-end protection. Also included is a 1/8" NPT calibration plug that is set to the factory fluid level which eliminates accidental overfilling.

Optional Accessories Available:
Our optional oil level sight glass (Part Number: 46-00001) and deep reach magnetic fill plug (Part Number: 46-00002) are great additions to combine with this cover.

Also Fits:
2000-2005 Ford Excursion

Note 1:
This cover will NOT fit F-350 Dually models. Please refer to P/N: 46-70030

Note 2:
Verify that this differential cover is correct for your vehicle by counting the bolts that hold the cover to the axle. This cover is compatible with Ford Sterling axles that have 12 bolt hole.

When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Year Make Engine

1986 - 1987

Ford Powerstroke


1988 - 2003

Ford Powerstroke
(Including Excursion)


2003 - 2007

Ford Powerstroke
(Including Excursion)


2008 - 2010

Ford Powerstroke


2011 - 2017

Ford Powerstroke