4L60E Solenoid Kit 2003-2007, new and ready to install. Fits the 4L60E. Ships fast from the USA.
This is a new GM solenoid kit for the 2003-2007 4L60E, the years that cover the late GMT800 Silverado and Sierra 1500, the first GMT900 trucks, and the Tahoe, Yukon and Suburban of the same era. Owners usually land here after a scan tool shows a shift solenoid code, or after the truck starts holding a gear, skipping 2nd or flaring between shifts while the fluid still looks healthy. When the hard parts are fine, those complaints are the solenoids failing to do what the computer asks.
Gear selection in the 4L60E comes from just two on/off shift solenoids. With both on the unit is in 1st, B alone gives 2nd, both off gives 3rd, and A alone gives 4th. The PCM layers a pressure control solenoid on top of that pattern to set line pressure for each shift, and a converter clutch circuit to lock the torque converter on the highway. Everything is fed by regulated solenoid pressure, so a coil that has gone weak or a seat that leaks lets the shift valve sit in the wrong place even though the computer commanded the right gear. That mismatch is what you feel as a skipped shift, a slow shift, or a gear that will not let go.
Check the fluid and the wiring before buying anything. Burned, dark fluid with friction material in the pan points to a 3-4 clutch or sun shell failure, two of the weak points in this transmission, and new solenoids will not fix either. If the fluid is clean, measure each circuit at the case connector and compare it to the published resistance range. A reading that is open or shorted means the problem is inside the pan; a reading that is in range but changes when you flex the outside harness means the fault is in the wiring. One documented case had a solenoid that tested in spec but responded too slowly, so a shift-by-shift look at live data is worth the time. Our guide to solenoid A and B codes and the 4L60E common problems guide lay out the full diagnosis path.
The listing covers the 4L60E from 2003 through 2007. GM revised this transmission more than once in that window, including the 2005-2006 changes and the move into the GMT900 platform for 2007, and some of those revisions changed connectors and the internal harness. Look at your old solenoids next to the photos before you install, or send us your year and VIN and we will confirm the match. The 1993-2002 units are a different design and will not accept these parts. See everything we carry for this transmission on the 4L60E parts page.
If the teardown shows burned clutches, stop and plan a rebuild; a 4L60E master rebuild kit for 2004-2010 trucks covers the frictions, steels and seals for most of this range.
The kit is new GM and carries a 1-year warranty.
| Fits | 4L60E 2003-2007 |
| Part type | Solenoid Kit |
| Condition | New |
| Brand | GM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for 2003-2007. The 1993-2002 design is different and will not interchange. For 2008 and later, check the part numbers and connectors on your existing solenoids against the photos, or send us the year and VIN before ordering.
Not always. A broken harness wire, a poor connector crimp or a blown fuse can produce the same symptom. Measure the circuits at the case connector first; if they are in range and the fluid is clean, the solenoids are the likely cause.
A new filter and pan gasket every time the pan comes off, new O-rings on each solenoid, and the internal harness if it is brittle or heat-cracked. If the pan shows heavy friction material, the clutches need attention before the solenoids will make a difference.
Use Dexron VI ATF. Fill after the pan is back on, then check the level hot with the engine idling in Park and top up slowly until it reads correctly.
Yes. This new GM solenoid kit carries a 1-year warranty.
