Fleece Performance 11-16 GM 2500-3500 Duramax Fuel Rail Pressure Harness

The Fleece Performance 11-16 GM 2500-3500 Duramax Fuel Rail Pressure Harness is a high-quality replacement component designed for the 2011-2016 6.6L Duramax engines. This harness replaces GM Part Numbers 12647115 and 12638158, ensuring compatibility with discontinued OEM parts. Manufactured in-house using fully automated wire cutting and terminal crimping processes, it guarantees durability and precise fitment. The harness routes underneath the turbocharger and connects to the main chassis harness, providing a reliable connection for fuel rail pressure regulation. Its robust construction enhances engine performance and maintains proper fuel pressure, contributing to optimal engine operation and longevity.

Designed specifically for 2011-2016 Duramax models, this harness fits GM 2500 and 3500 trucks equipped with the 6.6L engine. It serves as a direct replacement for the original factory part, ensuring a straightforward installation process. The harness is ideal for repairs, upgrades, or restoring factory functionality, especially when OEM parts are no longer available. Installation involves routing the harness underneath the turbocharger and connecting it to the main chassis harness, making it suitable for professional or experienced DIY installers. This component is essential for maintaining proper fuel system operation in heavy-duty diesel trucks.