Pay in 4 interest-free payments of $31.24 Learn more
Ships within 48 hours · Estimated delivery Jul 25 - Jul 30
MCR (Master Control Relay) kit design
and improves overall system reliability
high compression
Sleep mode after ignition off
LS 4L60E Transmission Control Harness M30 MCR (Master Control Relay) kitWiring made simple for your GM 4L60ENO 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 reliableno cutting, no splicing, no guesswork. Its the same harness included in our full 4L60E TCU