4T65E Overhaul Kit 2000-2003, new and ready to install. Fits the 4T65E. Ships fast from the USA.
This overhaul kit is listed for the 4T65E in 2000-2003 Chevrolet Impala and the other GM front-drive cars that share that transaxle in those years: Century, LeSabre, Regal, Monte Carlo, Grand Prix and their relatives. It is for the car that has crossed into rebuild territory, the one that slips on the 1-2 or 2-3 shift, flares when you get on it, takes a second to pick up Drive, or keeps setting a long-shift code after the solenoid has already been changed. The kit shown in the product photo goes past a gasket set: it includes friction plates for the clutch packs, a new filter, the valve body and channel plate gaskets, lip seals, piston and case O-rings, and the sealing rings for the rotating drums.
GM introduced the 4T65E for the 1997 model year as the third evolution of its original four-speed front-drive automatic, with a larger converter, a redesigned pump and a phased drive chain. Power comes off the converter, across the chain, and into the clutch packs and bands that hold each gear. Every one of those clutches is applied by oil, and the oil only does its job if the seals and sealing rings keep it inside the piston cavity. At this age the rubber has hardened and the frictions are glazed or thin, so apply pressure leaks away and the pack slips instead of locking. A 2000-2003 unit at high mileage usually needs both halves of that fix, which is why a kit with frictions makes more sense here than seals alone.
Start with the fluid and the codes. Friction debris in the pan plus slip in more than one gear means the packs are done and this kit fits the job. Clean fluid with harsh or erratic shifts is a different problem: the pressure regulator, actuator feed limit valve and pressure control solenoid work as a chain on this unit, and a fault anywhere in it changes line pressure without any clutch wear at all. Work through our 4T65E common problems and diagnosis guide and the pressure control solenoid symptoms guide before you commit to a teardown. If the main complaint is a late engagement, read the delayed engagement guide as well.
The listing covers the 4T65E in 2000-2003 vehicles, named for the Chevrolet Impala. Those years sit at a change point: we carry separate early and late versions of several 4T65E hydraulic parts because GM revised the unit around 2003, and heavy-duty and supercharged applications can use different clutch counts. Before assembly, lay each old friction next to its new replacement and check the tooth count, diameter and thickness, and read the case ID tag. If anything does not line up, send us your year and VIN and we will check it. Every other part we stock for this transaxle is on the 4T65E parts page.
If your unit only leaks and the clutches are healthy, the gasket-and-seal 4T65E overhaul kit for 2000-2011 is the lighter option.
| Fits | 4T65E 2000-2003 |
| Part type | Overhaul 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.
The kit in the product photo includes friction plates and a filter along with the gaskets, seals, O-rings and sealing rings. Compare the photo with your teardown and check each friction against the original before you assemble.
It is listed for 2000-2003 4T65E applications. Because GM made running changes around 2003 and some heavy-duty units differ, match the case ID tag and compare the old frictions to the new ones, or send us your year and VIN to confirm.
Often, yes. Transmission Digest describes long-shift codes returning on 4T65E units with excessive 2nd and 3rd clutch clearance, which a solenoid cannot fix. Confirm with the fluid condition and a road test first.
Use Dexron VI. GM lists roughly 7.4 quarts for a normal service; a rebuilt unit with a drained converter needs more, so fill, start the engine, and check the level at operating temperature.
Yes. Clear the transmission adaptive values with a scan tool, then drive through several light and moderate throttle upshifts so the computer learns the new clutch packs.
