Every electrical solenoid the 4L60E needs, in one kit.
Owners searching for a 4L60E solenoid kit usually have a Silverado, Sierra, Tahoe, Suburban, Yukon, S10 or Camaro that has started shifting late, flaring between gears, skipping lockup or sitting in limp mode with a shift code stored. This 7-piece kit is the solenoid-only option: it replaces the shift solenoids, the EPC pressure control solenoid, the TCC PWM lockup solenoid and the 3-2 downshift solenoid on a 1993-2008 4L60E, and it leaves your existing internal harness and pressure switch in place. That keeps the price down when the harness is still healthy.
Two shift solenoids decide the gear. The computer switches them on and off in a fixed pattern, both on for first and both off for third according to ATRA's GEARS solenoid charts, and the valve body follows. The EPC solenoid is a variable-force unit that raises or lowers line pressure, so a worn one shows up as shifts that are too soft or too harsh, and on this family as P0748. The TCC PWM solenoid ramps the converter clutch on smoothly instead of slamming it, and the 3-2 solenoid controls how the 3-2 downshift is timed under part throttle. All of them run on fluid fed through the AFL valve. When one solenoid wears, the others have seen the same heat and miles, which is the case for doing all seven at once.
Because this kit does not include a harness, testing the wiring first matters more here than with a full kit. ATRA Bulletin 583 shows a single bad crimp can set P0740, P0753, P0758, P0785 and P1860 together, which would send you after seven good solenoids. Measure each circuit at the case connector against ATRA Bulletin 269, then inspect the internal harness for cracked insulation or pinched wires once the pan is down. If the harness is damaged, buy a full kit with harness instead. For P0785 and 3-2 complaints, our 3-2 downshift solenoid guide also covers the broken 3-2 control valve spring that mimics a bad solenoid, and the EPC solenoid guide explains shift-feel diagnosis.
The kit is listed for 4L60E transmissions from 1993 through 2008. That is a wide span, and GM changed the harness and connector layout for 2003, so connector shapes on some of the solenoids differ between early and late units. Compare each solenoid and its connector in the product photos to the ones on your valve body before ordering, or send us your year and VIN and we will check. If your truck is 2003 or later and you want year-specific parts, the 2003-2007 solenoid kit is listed separately, and every version is on the 4L60E collection page.
Since the pan is off anyway, a 1993-2010 4L60E shift kit is an inexpensive way to firm up shifts and protect the clutches. If the valve body itself is worn, replacing solenoids will not stop TCC slip; the 4L60E valve body is the better fix in that case.
| Pieces | 7 |
| Fits | 4L60E 1993-2008 |
| Includes | Shift, EPC, TCC PWM, 3-2 |
| Ships from | USA |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It contains the seven solenoids only: the shift solenoids, EPC, TCC PWM and 3-2. You reuse your existing harness and pressure switch, so inspect them while the pan is down.
The kit is listed for 1993-2008, but GM changed connectors in 2003. Compare the solenoid connectors in the product photos to yours, or send us your year and VIN to confirm.
Only if a solenoid is the cause. On the 4L60E, worn valve body bores are a common cause of TCC slip, so vacuum test or inspect the valve body if new solenoids do not clear it.
Dexron VI. Refill, run the engine through the gears and set the level with the transmission at operating temperature.
All of the solenoids have the same heat and mileage. Replacing the set during one pan drop avoids coming back for the next one to fail.
