AFE Power Rear Differential Cover, Raw Finish; Street Series

2016 - 2017 2.8L GM Duramax

SKU NWD-46-70300


aFe Power's new rear differential cover brings performance engineering to the protection of your axle's differential.

This differential cover is constructed out of durable sand-cast A356-T6 aluminum with reinforcing ribs for maximum strength. This cover comes with mounting hardware for a hassle-free installation.

The differential covers includes an oil level sight glass and deep reach magnetic fill plug for maximum protection. This cover is finished with machined fins for a distinctive look.

  • Features
  • Videos
  • Instructions
  • Vehicle Fitment


  • Constructed out of durable A356 die-cast aluminum
  • Reinforcing ribs with a raw finish and machined fins
  • Magnetic drain and fill plug that captures loose particles for maximum rear-end protection
  • Calibration plug set to the factory fluid level to eliminate overfilling
  • Fits GM/DANA 12 Bolt Axles

2 Quart Lube Capacity:
This cover has about a 2 quart lube capacity at the factory fill level, factory cover holds about 1.5 quarts.

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

Magnetic Drain Plug: 
This system incorporates a magnetic drain plug that captures loose particles for maximum rear-end protection.

Oil Level calibration plug:
A 1/8" NPT calibration plug is set to the factory fluid level which eliminates accidental overfilling.

Optional Accessories Available:
This cover works great combined with a oil level sight glass (Part Number: 46-00001) or deep reach magnetic fill plug (Part Number: 46-00002).

Note: This cover fits the GM/DANA 12 Bolt Axles

2015-2017 Chevrolet Colorado V6-3.6L
2015-2017 Chevrolet Colorado I4-2.5L
2016-2017 Chevrolet Colorado I4-2.8L (td)
2015-2017 GMC Canyon V6-3.6L
2015-217 GMC Canyon I4-2.5L
2016-2017 GMC Canyon I4-2.8L (td)

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


2016 - 2017

GM Duramax
(Colorado / Canyon)

2.8L LWN