4T65E Master Rebuild Kit 2004, new and ready to install. Fits the 4T65E. Ships fast from the USA.
By 2004 most 4T65E transaxles were deep into their second or third owner, and the calls we get sound the same: a 2004 Impala, Monte Carlo, Grand Prix, LeSabre, Park Avenue, Rendezvous or Montana that flares between second and third, sets P1811 or P0730, or leaks fluid out of the top of the case. This kit is built for the later, 2004-on version of the unit and puts every wear and sealing part for a full overhaul in one box, so a tired transaxle can be rebuilt once instead of piece by piece.
The 4T65E holds each gear by applying clutch packs and bands with line pressure from the pump, routed through the valve body and the channel plate that bolts across the top of the case. The PCM watches turbine speed against output speed, and when a shift runs long it raises line pressure to hide the wear. A 2004 unit also uses the pawl-type input and third freewheels GM introduced for 2003, so it needs later-design parts. Per the listing, this kit is labeled for 2004-on and includes the overhaul set (gaskets, lip seals, O-rings and sealing rings), a friction kit and a steel kit, and the description also lists a filter and pistons. New steels matter here: a heat-checked steel behind a fresh friction is a common cause of shudder after a rebuild.
Scan for codes and look at live data: Transmission Digest explains that the PCM sets P1811 when a shift takes longer than 0.65 second twice in one drive cycle, and P0730 when slip in any gear lasts more than six seconds. Rising shift-adapt (TAP) values show where the computer is adding pressure, which helps point at the slipping pack. Then drop the pan. A clean pan with shift complaints often means a hydraulic or solenoid fault, not worn clutches. Work through our 4T65E diagnosis guide first, and price the job with our 4T65E rebuild cost guide.
This kit is listed for the 2004 and later 4T65E, the front-drive four-speed in GM cars and minivans with the 3.4L, 3.5L, 3.8L and 3.9L V6, along with the 5.3L V8 in the Grand Prix GXP and Monte Carlo SS. GM used several 4T65E versions (RPO MN3, MN7, M15 and M76), and gear ratios and some hard parts differ between them, so read the case tag, compare the kit pieces to your old parts before assembly, or send us your year and VIN to confirm. If your unit is a 2003, use our 2003 4T65E master kit, and see every part for this transaxle on the 4T65E parts page.
| Fits | 4T65E 2004 |
| Part type | Master Rebuild 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.
It is listed for 2004 and later 4T65E transaxles, which those cars use. Confirm the case tag and compare the kit pieces to your old parts, or send us your year and VIN before ordering.
The listing includes the overhaul gasket and seal set, a friction kit and a steel kit, and the description also lists a filter and pistons. Bands, drums and bushings are hard parts you inspect and buy separately if worn.
Loose second or third clutch packs are a common cause. Measure clearance as you stack each pack; about 0.008 to 0.012 inch per friction is the shop rule of thumb.
Dexron VI. Flush the cooler and lines before filling so old debris does not reach the new clutches.
Yes. Clear the old adapts with a scan tool and drive the car through light-throttle shifts so the PCM can relearn pressure for the new clutches.
