Simplify your Peterbilt truck’s transmission upgrade with the Kustom Truck Transmission Harness Installation Kit, designed for Eaton Autoshift or Ultrashift Plus transmissions installed in Peterbilt trucks with NAMUX2 or NAMUX3 chassis electronics. Ideal for replacing manual transmissions with Eaton automated transmissions, this kit includes all essential electrical interface components for a seamless installation. The kit comprises a Transmission Power Harness, Shift Controller Extension Harness, Dash Interface Harness, Transmission Harness, and Battery + Jumper, ensuring reliable connectivity and performance. Engineered specifically for Peterbilt heavy-duty Class 8 trucks, such as models 389, 388, 386, and 367, this kit is compatible with NAMUX2 electronics (typically 2008–2010 models) and NAMUX3 electronics (2011 and newer). Perfect for mechanics and fleet owners, it supports custom transmission swaps with precision and durability. Note: This kit is only compatible with Peterbilt NAMUX2 and NAMUX3 chassis electronics; contact Kustom Truck to confirm fitment if unsure of your chassis electronics.
Kit Includes:
- (1) Transmission Power Harness
- (1) Shift Controller Extension Harness
- (1) Dash Interface Harness
- (1) Transmission Harness
- (1) Battery + Jumper
Key Features:
- Designed for Eaton Autoshift/Ultrashift Plus transmissions in Peterbilt trucks
- Compatible with Peterbilt NAMUX2 (2008–2010) and NAMUX3 (2011+) chassis electronics
- Ideal for replacing manual transmissions with Eaton automated transmissions
- Includes Transmission Power Harness, Shift Controller, Dash Interface, and more
- Engineered for Peterbilt Class 8 trucks (e.g., 389, 388, 386, 367)
- High-quality construction for reliable connectivity and performance
- Not compatible with non-NAMUX2/3 chassis; confirm fitment with Kustom Truck
- Perfect for custom transmission swaps and fleet upgrades
Upgrade your Peterbilt’s transmission system with Kustom Truck Parts’ precision-engineered harness solutions, trusted for quality and compatibility.
