6L90 valve body for 2006-2017, remanufactured and ready to install. Ships fast from the USA.
The 6L90 is the heavy-duty sibling of the 6L80, built into the 2500/3500 Silverado and Sierra, the Express and Savana vans, and the Camaro ZL1 and Corvette Z06/ZR1, and it carries the extra load of towing and high-output engines through the same clutch-to-clutch hydraulic design. When that load wears the valve body, the symptoms are harsh or flared shifts, wrong-gear starts, and TEHCM codes rather than a mechanical bang. This is a remanufactured 6L90 valve body with the transmission control module included, covering 2006-2017 applications, corrected and function-tested before it ships.
The valve body is the hydraulic brain of the transmission: it routes line pressure through precision bores and spool valves to apply each clutch, while the transmission control module fires the pressure-control and shift solenoids mounted on it to time every shift. On the 6L90 there is no separate mechanical backup; the TCM and valve body work as one unit, so a worn valve bore or a TCM that has lost calibration both show up the same way, as a bad shift or a stored code.
Our 6L90 valve body problems and testing guide walks through separating a valve body fault from a worn pump or burnt clutches, and the 6L90 common problems and fixes guide covers the six failures that actually show up on these heavy-duty units.
Scan for codes and note whether the complaint only shows up under load or towing, which points toward clutch or valve body wear from heat and pressure cycling rather than a one-time electrical fault. Our 6L90 valve body wear guide covers the specific bores and circuits that wear first on this unit and the bench checks that confirm it before you spend money on parts.
This valve body and TCM assembly is built for 2006-2017 6L90 applications across the Silverado and Sierra heavy-duty trucks, Express and Savana vans, and the Camaro ZL1 and Corvette Z06/ZR1. The 6L90 shares its core architecture with the 6L80 but uses a longer case and roughly 25 percent heavier internal components, so a 6L80 valve body is not a substitute here even though some cases interchange. Confirm your original part number and casting, or send us your year, vehicle and VIN and we will confirm the right unit. Every 6L90 valve body we carry is on the 6L90 parts page.
Change the fluid and filter at the same time as the valve body so debris from the old unit is not drawn into the new one, torque the mounting bolts in sequence to spec, and run the adaptive relearn afterward so the TCM relearns clutch apply pressures. On a truck used for towing, inspect the clutch packs while the pan is down; our 6L90 clutch module and 6L90 solenoid kit are worth having on hand if wear shows up during teardown, and a 6L90 pump is the next thing to check if line pressure is still low after the new valve body goes in.
| Transmission | 6L90 |
| Year Range | 2006-2017 |
| Condition | Remanufactured / updated |
| Shipping | Ships from the USA |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It includes both. The TCM ships mounted to the valve body as one remanufactured assembly, function-tested before it leaves.
They share the same core design, but the 6L90 case is longer and its internal components are built heavier for towing and high-output engines. A 6L80 valve body is not a drop-in substitute for the 6L90.
Solenoid performance codes, clutch pressure-control codes, and ratio or limp-mode codes most often point here. Our 6L90 valve body problems guide covers the full list and how to confirm before buying parts.
It covers that span, but GM revised castings and TCM calibrations over those years. Match your original part number or send us your year, vehicle and VIN before ordering.
No separate reprogramming, but run the adaptive relearn so the TCM relearns clutch apply pressures on the new valve body over the first several drives.
The clutch packs, especially on trucks used for towing, since the 6L90's clutch wear under load is a known failure separate from the valve body itself.
