10L80 Clutch Module, new and ready to install. Fits the 10L80. Ships fast from the USA.
When a 2017-or-later Silverado, Sierra, Tahoe, Yukon or Escalade starts flaring between gears, slipping on a hot pull or leaving burnt lining on the pan magnet, the ten-speed usually needs new frictions. This is the BorgWarner OEM service friction set, part number B164119B, the same lining the factory builds the GM 10L80 and Ford 10R80 and 10R100 with. It is a complete set of friction plates for all six clutch packs, so you rebuild every pack with matched factory material instead of mixing new plates with worn ones.
The 10L80 gets ten forward ratios from four planetary gearsets and six clutch packs, lettered A through F. Any one gear has several packs applied, and every upshift is a timed handoff where the TCM releases one clutch while it applies another. GEARS Magazine puts that overlap at about 0.3 seconds, which is why these units are so sensitive to friction condition and clearance. As lining wears, the stack gets thinner, the piston travels farther before the pack grabs, and the oncoming clutch arrives late. The result is engine flare, a slip that the TCM tries to correct with more pressure, and eventually a harsh bump when it overcorrects.
This set contains 30 friction plates, broken down by pack the way you will install them:
Steels, seals, sealing rings and the filter are not included.
Frictions are an internal repair, so rule out the controls first. Worn valve body bores and sticking regulator valves cause flare and harsh shifts that look just like burnt clutches; our 10L80 valve body symptoms guide walks through the checks, and the 10L80 3-4 clutch failure guide explains how to tie a slip to a specific pack. Sonnax also points out that worn sealing rings and hub bushings bleed off clutch apply pressure, so a slipping pack is not always worn lining. If the fluid is burnt, the pan holds lining debris and the complaint returns after a relearn, the frictions are done.
B164119B is listed for 2017-on GM 10L80 and Ford 10R80 and 10R100 ten-speeds in cars, SUVs and pickups. GM changed clutch regulating and some clutch application when it moved from the Gen. 1 design (2019 and earlier) to Gen. 2, and plate counts in the C and D packs are not the same in every friction set on the market, so count the plates in each pack as you disassemble and compare them to the list above before assembly. If you are unsure, send us your year and VIN and we will check it. Browse the rest of our 10L80 parts collection for the matching hard parts.
| Fits | 10L80 |
| Part type | Clutch Module |
| Condition | New |
| Brand | Borg Warner |
| 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 a full set: 30 friction plates covering the A, B, C, D, E and F packs. Steels and seals are not included.
Yes, B164119B is listed for the Ford 10R80 and 10R100 as well as the GM 10L80. Count each pack's plates during teardown and compare them before you assemble.
An overhaul seal and gasket kit with sealing rings, a new filter, Dexron ULV (or Mercon ULV for Ford), and any steels that show heat damage.
Yes. Clearances and fill times change with new frictions, so the TCM adaptive values must be reset and relearned or shift quality will suffer.
The usual causes are worn sealing rings or hub bushings leaking apply pressure, clearance set out of spec, or a valve body problem that was never corrected.
