LS 4L60E Transmission Control Harness

Wiring made simple for your GM 4L60E—NO Controller Included This listing is for the 4L60E plug-and-play transmission harness ONLY, designed to connect your GM 4L60E automatic transmission to a MicroSquirt transmission controller. Perfect for LS swap builders, racers, and tuners who already own a MicroSquirt TCU, this harness makes installation quick and reliable—no cutting, no splicing, no guesswork. It’s the same harness included in our full 4L60E TCU kit and is engineered to plug directly into our LS 24x and 58x PNP Engine Harnesses. Compatible with: MicroSquirt-based transmission controllers MS3Pro setups via CAN bus Standalone TCU wiring setups Note: This harness does not include wiring for the input shaft speed sensor used in some 4L65E and 4L70E models. Not compatible with 2009+ 4L60E transmissions. This is the harness only—no controller is included. Key Features: Fully terminated and labeled 4L60E subharness Plug-and-play with LS PNP Engine Harnesses OEM-style connectors for factory fit and finish Supports CAN-based integration with MS2, MS3, or another MicroSquirt Simplifies wiring for custom or swap applications Included in this Package: Complete 4L60E transmission harness 6-pin black connector (for power, ground, and CAN) 8-pin gray connector (for optional inputs) 18 crimp pins for expansion connections Need the controller too? Check out our MicroSquirt CAN Transmission Controller with 4L60E Harness for the full kit.