Cast Aluminum Trans Pan for 01-18 GM 2500/3500 w/ Allison Transmission - Black

Transmission Pan

PART# 71390

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Fits 2001 to 2018 GM 2500, 3500 with an Allison Automatic Transmission.


This B&M Hi-Tek deep trans pan is designed for 2001 to 2018 GM 2500 and 3500 trucks with the Allison transmission. The pan adds 2.5 US quarts of additional fluid capacity for improved cooling efficiency over the stock transmission pan by using high quality cast aluminum. The Hi-Tek Allison pan also incorporates external cooling fins which not only look good, but are also functional by increasing the surface area to help dissipate heat much quicker than the OEM stamped steel flat transmission pans. Additional features include Black MIL spec anodized finish, an engraved B&M logo, a magnetic drain plug for catching ferrous metals, a temperature sensor port and mounting hardware. Gasket and filter not included.


  • Increased Cooling Effect
  • Magnetic Drain Plug for Easy Servicing
  • Additional Fluid Capacity
  • Engraved B&M Logo


Additional Fluid Capacity (qts)2.57 Q
Bolt Count12
Bolt/Studs IncludedYes
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 RequiredYes
Color/FinishBlack Anodized
Drain Plug IncludedYes
Drain Plug TypeMagnetic
Emission Code5
Filler Plug IncludedNo
Fits Trans ModelsAllison 1000, 2000 & 2400
Gasket IncludedNo
Material808 Aluminum
Product TypeAutomatic Transmission Oil Pan
Temp Sensor PortYes
Part Number71390


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

In The Box

  • Transmission Pan and Installation Hardware

Tech Resources

Fits 2001 to 2018 GM 2500, 3500 with an Allison Automatic Transmission.



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    Some parts are not legal for use in California or other states with similar regulations.