AFE Pro Series Rear Differential Cover, 2019-2021 GM 1500 LM2

Part# 46-71140A


WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Fits: 2019 Thru 2021  Chevy Silverado/GMC Sierra 1500 LM2 Duramax Diesel

This cover features an all-aluminum construction which, along with cast in fins and increased oil capacity, provides a combination of increased durability and cooling.


  • Constructed out of Durable Cast Aluminum

  • Neodymium Magnetic Drain Plug for Gear Protection

  • Calibration Plug Set to the Factory Oil Level to Prevent Overfilling

  • Fits GMCH 9.5 Rear Axles

DmaxStore Note: 

  • Increased Oil Capacity:

    This cover has an increased oil capacity over stock for better performance over a longer duration.

  • Built-in Internal/External Fins:

    Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling.

  • Magnetic Plug:

    This cover incorporates a magnetic drain plug to capture loose particles for maximum protection.

  • Calibration Plug:

    A calibration plug is set to the factory oil level to prevent overfilling.

  • Fitment Note:

    This item fits vehicles equipped with GMCH 9.5 Rear axles.