Genuine OEM Volkswagen Engine Wiring Harness, part number 03H971604T. This harness is the primary electrical distribution system for the engine, connecting various sensors, actuators, and control modules. It is located within the engine bay, routing power and data signals. The wiring is constructed from durable, heat-resistant materials to withstand engine compartment conditions. Genuine OEM parts are manufactured to exact specifications for reliable electrical performance and longevity.