4T40E valve body for 2007-Up, remanufactured and ready to install. Ships fast from the USA.
A Chevy Cavalier, Cobalt, HHR, Pontiac Sunfire or G5 riding on a 4T40E that shifts harsh, soft or slips between gears, hesitates before it engages, or sets a shift-quality or solenoid code is usually telling you the valve body wore out before anything downstream did. This is a remanufactured 4T40E valve body built on casting 24233226, the generation GM used for 2006-2008 production, and it is tested and updated before it ships rather than sold as a reused core.
The 4T40E is an electronically controlled transaxle, so the valve body does two jobs at once. It is the hydraulic manifold that meters line pressure and routes it through precision bores to the clutches and bands that make each gear, and it is also the mounting point for the pressure and shift solenoids the transmission computer uses to time every shift. When a bore wears or a solenoid weakens, the symptom can look electrical, mechanical, or both, because the computer is commanding a part that physically can no longer respond the way it used to.
GM revised the 4T40E/4T45E valve body several times, and the change that matters most is the EPC (electronic pressure control) solenoid. Earlier valve bodies used a large-diameter Delphi EPC; starting with the 2004-2005 casting and continuing on casting 24233226 (the 2006-2008 generation this listing covers), GM switched to a small-diameter Bosch EPC. Both solenoids bolt into the same bore with the same connector, so a shop can install the wrong one without anything looking obviously wrong - a Delphi EPC in a 2004-and-later unit causes soft, slipping shifts that may not set a code, while a Bosch EPC in an earlier unit causes harsh shifts that will not adapt out. This unit ships built for the correct small-Bosch generation.
This valve body is built on the 2006-2008 casting and covers the 4T40E as installed through the 2007-and-up production run described in the listing. The 4T40E and 4T45E share this same valve body architecture and casting family, so always confirm your own transmission code and casting number before ordering rather than going by model year alone - pull the old valve body and read the stamped casting number, or send your VIN and we will match it. See the full 4T40E parts collection for every casting and generation we carry.
Drop the pan and change the filter in the same job so debris from the worn valve body does not recirculate through the new one, torque the case bolts in sequence, refill with Dexron VI ATF, and run the computer's adaptive relearn after the swap - skipping the relearn is the most common reason a good valve body still shifts firm right after install. If the unit you are replacing has any history of torque converter clutch shudder or apply/release problems, pair this job with a 4T40E TCC solenoid so you are not chasing a second converter-clutch complaint after the valve body is already installed. A 4T40E shift kit is worth adding at the same time if the old valve body also had worn 1-2 or 2-3 shift feel beyond what the solenoids alone caused.
A valve body swap does not reset wear elsewhere in the unit. If the complaint includes shudder under light throttle, flare on a particular shift, or metal in the pan, those point to the clutch packs or the planetary gearset rather than the valve body alone - the 4T40E master rebuild kit covers the internal wear parts if a full rebuild turns out to be the better call once the valve body is ruled out or already changed.
| Transmission | 4T40E |
| Year Range | 2007-Up |
| Condition | Remanufactured / updated |
| Shipping | Ships from the USA |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Casting 24233226 is GM's 2006-2008 valve body generation with the small Bosch EPC solenoid. Pull your current valve body and read the stamped casting number, or send us your year, make, model and VIN and we will confirm before you order.
Casting 24233226 uses a small-diameter Bosch EPC solenoid. Earlier 4T40E/4T45E valve bodies (through 2003) used a large-diameter Delphi EPC. The two solenoids share the same bore and connector, so installing the wrong one will not always set a code, but it will cause harsh shifts (Bosch in an old unit) or soft, slipping shifts (Delphi in a new unit).
They share the same valve body architecture and casting family, including casting 24233226, so this listing covers both transmissions in the 2006-2008 generation. Always confirm your specific transmission code before ordering.
Dexron VI ATF.
Yes - run the transmission's adaptive relearn with a scan tool after installation. Without it, the computer keeps shifting on the adaptation values it learned from the worn valve body.
Not on its own. Shudder and metal in the fluid usually point to the clutch packs or gearset rather than the valve body. If the complaint includes either of those, a full rebuild kit is the more complete fix.
