10L80 Clutch Module 2017, new and ready to install. Fits the 10L80. Ships fast from the USA.
This clutch module is for an early GM 10L80, the first-generation ten-speed found in full-size Chevrolet, GMC and Cadillac trucks and SUVs. The unit we ship is BorgWarner's 35955KIT friction module, listed for 2017 and later, so the 2017 in the name marks where coverage starts rather than a one-year part. Owners usually land here after a slip on the highway, a flare between gears that the dealer relearn did not fix, or a teardown that found glazed, flaking lining.
A 10L80 holds each of its ten gears with a combination of clutches drawn from six packs labeled A to F. On a first-generation unit, built 2019 and earlier, Sonnax explains that each clutch is fed through a latch valve and regulated by its own linear-force solenoid, with a pin pressing directly on the regulating valve. The friction plates are the end of that chain. Whatever pressure the solenoid commands, the lining has to turn it into holding torque. Once the lining thins, the pack takes longer to fill and slips while it does, and the TCM keeps adding pressure or time to compensate until it runs out of room. This kit carries 28 frictions in total, with the pack counts at 3 A, 6 B, 5 C, 5 D, 5 E and 4 F.
Because an early 10L80 relies on individual solenoids and latch valves for every clutch, a weak solenoid or a sticking regulator valve can starve a healthy pack and feel exactly like worn lining. Run the checks in our 10L80 pressure control solenoid guide and the 10L80 shift solenoid testing guide before you pull the transmission. If a scan shows a single range slipping while line pressure is correct, the clutches are the likely cause.
The module is listed for 2017-on GM 10L80 units and shares its design with the Ford 10R80 and 10R100. GM switched to a second-generation 10L80 with a different clutch apply strategy for 2020, which is why a 2018 or 2019 truck should be checked against what comes out of the case. Lay each pack out on the bench, count its frictions, and compare them with the counts above before you install anything. If your truck was built near a model-year change or has had a replacement transmission, send us your year and VIN and we will confirm the match. Every part we carry for this unit is on our 10L80 transmission parts page.
| Fits | 10L80 2017 |
| Part type | Clutch Module |
| Condition | New |
| Brand | BorgWarner |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It is BorgWarner's 35955KIT, listed for 2017 and later 10L80 units. The year in the title is where coverage starts. Compare plate counts during teardown on 2020-up units, which are second generation.
Full-size GM trucks and SUVs, including the Chevrolet Silverado, Tahoe and Suburban, GMC Sierra and Yukon and Cadillac Escalade. Send us your year and VIN if you are unsure which ten-speed your vehicle has.
Plan on new sealing rings, piston seals, gaskets and a filter, and replace any steel plates that are blued or warped. An overhaul kit plus a filter kit covers most of that.
Yes. Clear the adaptive values, program the solenoid characterization data if the valve body was serviced, and complete the relearn. Without it the shifts can be harsh at first.
Not if the lining is worn. Fresh fluid may help briefly, but glazed or thin frictions keep slipping, and the debris keeps circulating through the valve body.
