Eaton Fuller Manual Transmission Sensor Harness for Kenworth trucks with NAMUX2 or NAMUX3 chassis electronics.
This direct-fit harness provides the necessary electronic interface for vehicle speed, transmission temperature, and reverse switch functions when installing an Eaton Fuller manual transmission. It is commonly used as an OEM replacement or when replacing a Paccar engine (which pulls vehicle speed through the ABS system) with a Caterpillar, Cummins, or Detroit engine in NAMUX3 trucks. It also supports conversions from automated to manual transmissions.
Kit Includes:
- (1) Eaton Fuller Manual Transmission Sensor Harness
Compatibility:
- Kenworth trucks with NAMUX2 chassis electronics (typically 2008–2010)
- Kenworth trucks with NAMUX3 chassis electronics (2011 and newer)
- Kenworth models including W900, T800, T660, and others
Important Notes:
- Sensors are not included.
- When replacing a Paccar engine, a compatible Vehicle Speed Sensor is required: Thread-in style (PN: 99999017) or Push-in style (PN: 99999016).
- When converting from an automatic to a manual transmission, a Transmission Sensor Kit is also required: Metric thread (PN: 99999035-1) or Standard thread (PN: 99999035).
- This harness is only compatible with Kenworth NAMUX2 and NAMUX3 chassis electronics.
- If you are not certain of your chassis electronics or required sensors, contact Kustom Truck for verification.
Key Specifications:
- Provides vehicle speed, transmission temperature, and reverse switch signals
- Restores factory-like dash and gauge operation after engine or transmission changes
- Ideal for Paccar engine repowers and manual transmission conversions
