B&M Hi-Tek Aluminum Differential Cover for AAM 11.5 - Black

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Part Number
B&M 11317

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 gears and bearings. 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
  • Over 65 Years of B&M Quality
  • Lifetime Limited Warranty
  • Additional Fluid Capacity
  • Black Anodized Finish
  • Machined B&M Logo
More Information
Part NumberB&M 11317
Manufacturer Part Number11317
Color FinishBlack Anodized
Emission Code5
MaterialA356.0-T6 Aluminum
Part TypeDifferential Cover
Item ReturnsThis item can be returned

Bolt Count14
Bolt/Studs IncludedYes
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 RequiredYes
Call Out Size (in)3
Carrier Main Cap SupportYes
Color/FinishBlack Anodized
Differential Cover Bolt PatternAAM 11.5
Differential Thickness (in)3.6
Drain Plug IncludedYes
Emission Code5
Filler Plug IncludedYes
Gasket IncludedNo
MaterialA356.0-T6 Aluminum
Product TypeDifferential Cover
WarningCalifornia Proposition 65

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

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