Allison 10 Speed GM 10L1000 Deep (cast finish)

10 Speed GM 10L1000 Allison Transmission Pan, Extra Capacity, for 2020 and newer 2500 HD, 3500 HD Duramax trucks. 

Number of Bolts: 16 bolts (18 holes, 16 bolt holes and 2 holes to locate gasket)

Volume: 4 quarts over stock

Dimensions: at deepest area, This pan is 7 inches, stock pan is 4.3 inches

We designed and manufactured this 10L1000 Allison transmission pan for 2020 and newer Duramax trucks. The design focuses on maintaining the general shape of the OEM pan while adding extra capacity and a finned bottom for heat dissipation.

Benefits of Pan Design

• Extra capacity
• Finned to increase surface area for heat dissipation
• Drain and magnetic drain plug
• Thick walls and gasket flange
• Heavy duty construction
• Shape similar to OEM pan to replicate fluid flow and dynamics of OEM pan
• Deep sump middle design avoids clearance issues with any cross frame members or exhaust packages