4L65E Master Rebuild Kit 2004-2013, new and ready to install. Fits the 4L65E. Ships fast from the USA.
If your 2004-2007 Silverado or Sierra, Tahoe, Yukon, Suburban or Avalanche with the 4L65E is slipping between gears, has lost 3rd and 4th after a summer of towing, or leaves clutch lining on the pan magnet, this is the kit for a late-model rebuild. The listing runs through 2013 because it is built for the late 4L60E-family case that the 4L65E shares. The photo shows a full soft-parts set: friction plates, bonded pistons, a filter, a pan gasket, the case and valve body gaskets, sealing rings, O-rings and lip seals. Hard parts are not part of it, which keeps the price where a do-it-yourself or shop rebuild makes sense.
The late 4L65E still makes its four gears with the overrun, forward, 3-4 and reverse input clutches and the 2-4 band, all inside the 4L60E-family case but behind the heavier internals GM used for the 5.3L and 6.0L trucks. Each clutch pack relies on frictions and on piston seals holding pressure; once those seals harden from heat, the clamp load drops and the pack starts to slip, which makes more heat. Bonded pistons in this kit replace the separate rubber lip seals on the clutch pistons, which is why rebuilders like them: the seal cannot roll or cut during assembly. Renewing every friction, piston, seal and gasket together means the whole unit goes back in service at the same point.
A rebuild is a big job, so rule out the cheaper causes first. GM's PIP5340A covers P0894 and P1870 setting on 4L65E trucks after converter or transmission replacement, and Sonnax lists TCC regulator bore wear as a primary cause of P1870, so a slip code alone does not prove the clutches are gone. Check the fluid, the pan magnet and a line pressure gauge. If shift complaints point to solenoids, read our 4L65E shift solenoid guide. If the pan is full of lining, plan the overhaul with our 4L65E rebuild cost breakdown.
This kit is for 2004 and newer units through 2013. On the 4L65E that covers the 2004-2007 5.3L and 6.0L trucks and any later 4L65E applications; the remaining years are the 4L60E family sharing the late case. It will not match a 2001-2003 4L65E, which needs the 1993-2003 master kit. Within 2004-2013 there are still changes: Sonnax notes GM moved to a thicker reaction carrier bearing with a matching carrier and shaft in March 2007, so note which style you pull out. Lay every gasket over its part and match the holes before you install it. If you are unsure, send us the year and VIN. Everything else for this unit is on the 4L65E collection page.
| Fits | 4L65E 2004-2013 |
| Part type | Master Rebuild Kit |
| Condition | New |
| Brand | GM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The photo shows friction plates, bonded pistons, a filter, a pan gasket, case and valve body gaskets, sealing rings, O-rings and lip seals. It is a soft-parts kit; drums, shells and planetaries are not included.
No. A 2003 or older unit takes the 1993-2003 kit. This one is for 2004 and newer cases.
Bonded pistons have the seal molded to the piston, so it cannot roll or cut during assembly. That removes one of the most common causes of clutch slip after a fresh rebuild.
Only if worn clutches are the cause. P1870 in this family is often a worn TCC regulator valve bore, so check the valve body too while it is out.
Dexron VI ATF. Soak the frictions in it, refill after assembly, and check the level hot after the first drive.
