Product Overview
Allison Transmission 20 Pin Internal Wiring Harness is a 20 pin internal harness for supported 5 speed LCT1000 transmission applications. It connects seven solenoid circuits and associated internal components to the external control connector. It is supplied under part number 29539792.
Key Features
- 20 pin main transmission connector
- Seven solenoid internal harness configuration
- Connects internal controls to the vehicle wiring
- Listed for supported 5 speed LCT1000 applications
- Supplied as one complete harness
Compatibility / Fitment
Compatibility depends on the Allison transmission model, serial number, control generation and build specification. Please provide the transmission serial number before ordering so the part number and application can be checked.
Please message us with your engine serial number / Model / Type / Code to check compatibility.
Why Buy Genuine OEM Parts
- Designed for the intended Allison transmission application
- Supports correct fit and operating function
- Provides traceable OEM part identification
- Helps maintain the transmission to the specified component standard
Why Buy From Mitchell Powersystems
- Genuine OEM parts supplied with technical support
- UK based parts supply for professional workshops and operators
- Help available to confirm the correct part using your equipment details
- Trusted supplier for diesel engine, transmission and drivetrain parts


