The Baldwin's Performance CM2100 In-Cab Stock Harness is purpose-built for 2007.5–2009 6.7 Cummins third gen trucks running the CM2100 ECM in a stock wiring configuration with the ECM relocated inside the cab. If you are moving your ECM out of the engine bay for heat protection, cleanliness, or build purposes while retaining all factory systems, this is the harness built specifically for that application.

Every harness is built with the highest quality materials available — a premium OEM-grade upgrade designed to outlast the factory harness in every measurable way. Construction starts with all new OEM connectors and terminals paired with TXL automotive wire featuring chemically cross-linked polyethylene insulation engineered for high heat environments. The harness is flame resistant, moisture resistant, oil resistant, gasoline resistant, diesel resistant, grease resistant, and resistant to most solvents and acids.

From there every harness is fully wrapped in Tessa tape for an additional layer of protection against cuts, abrasions, and environmental hazards. Over that is a full loom of 10 mil PET semi-rigid split braided loom for structural protection and a clean professional appearance. Finally each harness is finished with dual wall heat shrink at all termination points to lock out moisture and ensure long-term reliability.

The result is a harness that relocates the CM2100 ECM inside the cab for maximum protection while retaining all factory body, chassis, and accessory systems exactly as built. Clean engine bay. Full factory function. Built to outlast OEM.

This is the stock configuration with in-cab ECM relocation. For the ECM in the stock under-hood location see the CM2100 Stock Harness. For the standalone version see the CM2100 In-Cab Standalone Harness.