4L65E Overhaul Kit 2004-2013, new and ready to install. Fits the 4L65E. Ships fast from the USA.
When a late GM truck with the 4L65E is coming apart for a rebuild, the overhaul kit is the first thing on the parts list. This new kit, listed under the GM brand, covers the 2004-2013 version of the transmission used behind the 5.3L and 6.0L V8 in the Silverado, Sierra, Tahoe, Yukon, Suburban and Avalanche. People shopping for it usually have a truck that slips after towing, takes a second or two to grab Drive on a cold morning, or is leaking fluid from more than one spot at once.
Every clutch and the 2-4 band in the 4L65E are applied by oil, and that oil only does its job if it stays in the circuit it was sent to. The overhaul kit is the sealing side of a rebuild: the case, pump and valve body gaskets, the piston lip seals, the Teflon and metal sealing rings on the shafts and in the pump stator, and the O-rings on the servo, accumulators and connector. After years of heat cycles those rubber parts harden and shrink and the rings wear grooves in their lands, so apply pressure bleeds off and the clutches slip and glaze. A rebuild that reuses any of them is a gamble. Check the product photos for exactly what is in the box, and if frictions and steels are not shown, add them separately.
Make sure the problem is inside the case before committing to a teardown. GM's PIP5340A describes P0894 and P1870 setting on 4L65E (M32) trucks after a converter or transmission swap, and Sonnax names TCC regulator valve bore wear as a primary cause of P1870 and of lost line pressure, so a slip code alone does not prove the seals are finished. Pull the pan, inspect the magnet, and run a line pressure test. If the shift complaint is electrical, start with our 4L65E shift solenoid guide instead. If the evidence says rebuild, the 4L65E common problems guide lists the weak points to fix while it is apart.
The listing covers 2004-2013, which spans the late 4L60E-family case the 4L65E shares. Within that window GM made running changes; Sonnax documents a March 2007 move to a thicker reaction carrier bearing with a matching carrier and shaft, and seal and ring dimensions can differ slightly between early and late pumps. Before you order, compare your case and pump against the photos, or send us the year and VIN so we can confirm it. If your transmission is 2003 or older, the 1993-2003 overhaul kit is the correct one. All other parts for this unit are in the 4L65E catalog.
| Fits | 4L65E 2004-2013 |
| Part type | Overhaul 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.
An overhaul kit is built around the gaskets, seals, sealing rings and O-rings. Check the product photos for the exact contents; if frictions and steels are not shown, buy them separately or step up to a master rebuild kit.
The listing covers 4L65E units from 2004 through 2013. GM used different transmissions across its truck lineup in those years, so confirm your vehicle has the 4L65E (RPO M32 on the glovebox or door tag) or send us your year and VIN.
Frictions and steels, the filter, any worn bushings, and the shells or input sprag if they show wear. Many builders also replace the shift and pressure control solenoids while the valve body is off.
Not by itself if the cause is TCC regulator valve bore wear in the valve body. Diagnose the valve body as well, or the code can return after the rebuild.
Dexron VI ATF. GM lists 11.2 quarts as the dry capacity for the 4L65-E; after a rebuild, fill, run it to temperature and set the final level hot.
