GDP Commander L5P E41 ECM harness (2017-2023 Duramax L5P)

The GDP Commander L5P E41 ECM Harness connects the GDP Commander to the E41 ECM on 2017-2023 L5P Duramax trucks, so the module can be flashed in the vehicle.

Why it matters

• Eliminates the ECM swap - no removing the module and no shipping it away
• Keeps the truck's original ECM in the truck
• Removes the downtime that comes with a mail-in service

Fitment

2017-2023 GM Duramax L5P 6.6L, E41 ECM.

Device compatibility

Works with the GDP Commander. The Commander itself is required and sold separately.

GDP part 541-03603.