6L90 Valve Body 2010, remanufactured and ready to install. Fits the 6L90. Ships fast from the USA.
A 2010 Silverado 2500/3500, Sierra HD, Express, or Savana that shifts harsh, flares between gears, or shudders when the torque converter locks up at cruise is a common complaint on the 6L90, and in most cases the cause sits inside the valve body rather than the clutches themselves. This is an OEM remanufactured valve body built specifically for the 2010 model year 6L90, bench-tested before it ships so you install a known-good unit instead of guessing at which bore wore out on the original.
The 6L90 is GM's heavy-duty 6-speed rear-wheel-drive automatic, and the valve body is its hydraulic brain. It routes line pressure through precision bores and spool valves to apply each clutch and band in the right order, and because the 6L90 is electronically controlled, the same casting carries the shift and pressure-control solenoids the computer commands to time every shift. When those bores wear, the computer can still send the right command, but the oil pressure behind it leaks off or arrives late.
These symptoms overlap with other known 6L90 failures for this generation, including TEHCM faults and clutch pack wear under towing, which our 6L90 common problems guide walks through so you are not chasing the wrong part.
Pull codes first. Stored pressure-control or shift-solenoid-performance codes, combined with harsh or flared shifts that do not change with fluid level, point to the valve body rather than a clutch pack or the torque converter itself. Our 6L90 valve body testing guide covers how to check line pressure and isolate a worn bore before condemning the unit, and if you want the deeper bench-level breakdown of which bores wear first, the 6L90 valve body wear guide covers that.
This valve body is built for the 2010 6L90 as installed in the 2007-2020 GM heavy-duty lineup: Chevrolet Silverado 2500/3500, GMC Sierra HD, Express and Savana vans, plus the Camaro ZL1 and Corvette Z06/ZR1 that share the transmission family. The 6L90 ran through several internal revisions across its production run, so match your old unit's casting number and connector count against this one, or send your year and VIN before ordering, rather than assuming every 6L90 valve body interchanges. Every 6L90 part we stock by year and revision is grouped on the 6L90 parts page.
Change the fluid and filter at the same time you install this valve body, since debris from the worn original circulating through a fresh unit is one of the fastest ways to repeat the failure. Refill with Dexron VI ATF, torque the valve body bolts in the sequence GM specifies rather than a cross pattern you improvise, and run the adaptive shift relearn with a scan tool once it is buttoned up; skipping the relearn is the most common reason a correctly installed valve body still feels rough on the first few drives. Pair the install with a 6L90 solenoid kit if the old solenoids have already been swapped once without fixing the shift quality, or with the 6L90 Zip Kit if you are repairing rather than replacing the casting.
| Fits | 6L90 2010 |
| Part type | Valve Body |
| Condition | Remanufactured |
| 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.
It is built for the 2010 model year 6L90 as used across the Silverado 2500/3500, Sierra HD, Express and Savana. Confirm your old unit's casting number and connector count, or send your year and VIN, before ordering.
If the shudder is caused by TCC apply pressure leaking off through worn valve body bores, yes. If the converter itself has failed, the valve body alone will not fix it.
A fresh filter and pan gasket at minimum, and refill with Dexron VI. If solenoids have already been replaced once without fixing the shift quality, add a solenoid kit.
No reflash is needed, but run the adaptive shift relearn with a scan tool, since skipping it is the most common reason a new valve body still shifts rough at first.
Remanufactured and bench-tested before it ships, built to OEM specification for the 2010 6L90.
Stored pressure-control or shift-solenoid codes alongside harsh or flared shifts point to the valve body. Burnt-smelling fluid or metal in the pan points to clutch damage instead; check both before ordering.
