4L60E Master Solenoid Kit with Harness, 1993-2002

A complete electrical refresh for the 1993-2002 GM 4L60E valve body. The kit replaces the solenoids that control every shift and lockup event: the 1-2/3-4 (A) and 2-3 (B) shift solenoids, the TCC on/off solenoid, the TCC PWM solenoid, the EPC pressure control solenoid and the 3-2 downshift control solenoid, along with the internal wiring harness, a pan filter and a pan gasket. Nine pieces total.

It fits GM applications with the 4L60E built 1993 through 2002 (the earlier case-connector and harness style). Listed OEM cross references include 10478112, 10478120, 10478131, 24230298, 24215111, 24219581, 24220158, 24203101, 24209276, 8677314, 8684216, 24212690, 24227792, 8683187, 24212327, 24203267 and 24209121. Match your part numbers before ordering; 2003-up units use a different harness.

Typical reasons to replace the whole set: P0751-P0758 shift solenoid codes, P0741/P1870 TCC codes, no 1-2 or stuck in second, harsh or soft shifts from a weak EPC, and lockup shudder. Drop the pan, pull the filter, unplug and remove the old solenoids and harness, then install the new ones with fresh O-rings seated and the harness routed clear of the manual valve and detent spring. Torque the valve body bolts to spec, install the new filter and gasket, refill and clear codes.