B&M® (14-21) GM SUV/Truck Hi-Tek Aluminum Differential Cover

  • Sale
  • Regular price $293.95


2015 - 2021 Cadillac Escalade (6.2L)

2018 - 2021 Chevy Express (2.8L/4.3L/6.0L)

2015 - 2021 Chevy Suburban (5.3L/6.2L)

2015 - 2021 Chevy Tahoe (5.3L/6.2L)

2018 - 2021 GMC Savana (2.8L/4.3L/6.0L)

2014 - 2021 Chevy Silverado (2.7L/4.3L/5.3L/6.2L)

2014 - 2021 GMC Sierra (2.7L/4.3L/5.3L/6.2L)

2015 - 2021 GMC Yukon (5.3L/6.2L)

2015 - 2021 GMC Yukon XL (5.3L/6.2L)

Fits most vehicles with AAM 9.5/9.76 rear differential, however vehicles may have other interfering components that may require modifications or moving of existing brackets, require longer cover bolts or different cover bolts, clearance of sway bars etc. - Checking for adequate clearance and fitment for your application should be verified prior to purchase & installation. Refer to ID guide and measurement drawings for specifications.

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

In The Box

  • Cover
  • fill plug
  • drain plug
  • bolts
  • washers
  • load bolts
  • nuts
  • instruction


Our engineers designed the line of Hi-Tek differential covers to not only look good but address a number of weaknesses of the factory stamped steel covers. First, they started by constructing the covers of thick A356.0-T6 aluminum, which dissipates heat much faster than the factory steel unit keeping the fluid temperature lower under high-stress loads vs. a steel cover. Then for added durability, we added a reinforced center bar for extra strength along with load bolts to help prevent bearing cap deflection under severe loads. The internal shape of the cover retains the smooth round back internally to help keep the fluid flow going over the ring gear to properly lubricate the bearings, the ring and pinion gears.Additional features include a magnetic drain plug for catching ferrous metal particles, MIL-Spec (MIL-A-8625) black anodized finish, machined B&M logo, and all necessary hardware and easy to follow detailed instructions for a quick and simple installation you can do at home


  • Load Bolts for Additional Support for Bearing Caps
  • Magnetic Drain Plug for Easy Servicing
  • A356.0-T6 Aluminum Construction
  • MIL-Spec Black Anodized Finish
  • Lifetime Limited Warranty
  • Additional Fluid Capacity
  • Machined B&M Logo


Additional Fluid Capacity (qts) Yes
Bolt Count 12
Bolt/Studs Included Yes
Brand B&M
Call Out Size (in) 3.55
Carrier Main Cap Support Yes
Color/Finish Black Anodized
Differential Cover Bolt Pattern AAM 9.5/9.76
Differential Thickness (in) 4
Drain Plug Included Yes
Emission Code 5
Filler Plug Included Yes
Gasket Included No
Material A356.0-T6 Aluminum
Product Type Differential Cover
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Required Yes
Part Number 71506


Install Guide: