Power your Peterbilt truck’s main engine harness with the Kustom Truck Fuse Harness, designed for 2008 and newer heavy-duty class 8 models with NAMUX2 or NAMUX3 chassis electronics, including but not limited to 389, 388, 386, and 367. This essential harness delivers reliable power from the battery box to the main engine harness, available in two lengths to suit your truck’s configuration. The standard fuse harness (8'8" length) is ideal for battery boxes located under the driver’s door. The extended fuse harness (12'8" length) accommodates battery boxes on the passenger side under the passenger door or on the driver side behind the cab. Engineered for durability and precise fitment, this harness is perfect for mechanics and fleet operators upgrading or maintaining electrical systems. Contact Kustom Truck Parts to confirm chassis electronics and fitment compatibility.
Kit Includes:
- (1) Fuse Harness (Standard 8'8" or Extended 12'8" length, based on selection)
Key Features:
- Designed for 2008+ Peterbilt class 8 trucks with NAMUX2/3 chassis electronics (e.g., 389, 388, 386, 367, and more)
- Delivers power from battery box to main engine harness
- Standard length (8'8") for driver’s door battery box location
- Extended length (12'8") for passenger side or behind-cab battery box locations
- High-quality construction ensures reliable power delivery and durability
- Ideal for engine conversions and fleet maintenance
- Easy installation for custom builds or repairs
Upgrade your Peterbilt’s electrical system with Kustom Truck Parts’ precision-engineered harness solutions, trusted for quality and performance.
