10L80 Shift Kit 2019, new and ready to install. Fits the 10L80. Ships fast from the USA.
Be clear on what this is before you buy: the listing title says 10L80 shift kit, but the part that ships is PPE part 128051100, a raw finish cast aluminum deep transmission pan for the 10L80 behind the 3.0L Duramax in the Silverado 1500 and Sierra 1500. It will not change shift firmness or valve body calibration. What it does is give a hard-working diesel half-ton more fluid, more cooling surface, a drain plug and a magnet you can actually read at every service. If you wanted a calibration change, the 10L80 shift kit listing for the RatioTek tuner is the part to look at instead.
The 10L80 has ten forward ratios and shifts constantly, and every one of those shifts depends on clutch apply pressure that the TCM learns and adjusts. GEARS Magazine points out that the clutch-to-clutch overlap on these units is only about three tenths of a second, so fluid condition and temperature show up quickly in how a shift feels. The factory pan is a thin stamping with no drain plug. PPE's casting raises capacity by about four quarts, which slows how fast the fluid heats up under a trailer, and adds internal ribs that act as baffles plus external fins for cooling. The drain plug is billet stainless with a strong magnet, and a 1/8 in NPT port, plugged from the factory, is ready for a temperature sender.
The diesel is the one that benefits most. GM bulletin 22-NA-182 covers harsh shifts, flares and high fluid temperature across the GM 10-speeds, and on the 3.0L the thermal bypass sits on the frame rail rather than in the valve body, so the transmission runs warmer before fluid is routed to the cooler.
A bigger sump will not fix a hydraulic or electrical problem. Harsh shifts that need a relearn, flares and bumps are covered in 10L80 harsh shift causes. If the current pan magnet is carrying chunks or aluminum glitter, read 10L80 pump failure symptoms before spending money on upgrades. Codes, a momentary lock-up feel with a drop to second gear (the subject of GM's 2025 10-speed recall) or a slam into a lower gear belong in 10L80 valve body symptoms and testing.
The source listing says 2019 and up, 3.0L Duramax, 10L80, two-wheel or four-wheel drive. The 3.0L diesel did not reach production until the 2020 model year, and PPE dealers list this pan for 2020 and later trucks, so 2020-up Silverado 1500 and Sierra 1500 3.0L diesels are the confirmed fit. It is not listed for the gas 5.3L or 6.2L, the Tahoe, Suburban, Yukon, Escalade or Camaro, or the 10L90. Confirm the engine on the RPO label in the glovebox, or send us your year and VIN. See the full range of 10L80 and 10L90 parts.
| Fits | 10L80 2019 |
| Part type | Shift Kit |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. The listing name is wrong. It is a PPE 128051100 raw cast aluminum deep transmission pan for the 10L80 in the 3.0L Duramax trucks. It does not alter shift pressures.
The 3.0L Duramax started in the 2020 model year, and PPE dealers list this pan for 2020 and later 3.0L diesel trucks. Send us your year and VIN if you have any doubt.
About four quarts more than the factory pan. Plan for the 8.1 quart service fill plus roughly four more, using DEXRON ULV.
No. Only the pan and the magnetic drain plug are included. Use a new factory-style filter and gasket during the install.
Only if heat was the cause. Shift complaints with codes or debris point to the valve body, solenoids or clutches, which need their own diagnosis.
