4L60E Overhaul Kit 2004, new and ready to install. Fits the 4L60E. Ships fast from the USA.
A 2004 Silverado 1500, Sierra 1500, Tahoe, Yukon or Suburban with the 4L60E is now past 20 years old, and many have well over 200,000 miles. When one of these starts slipping on the highway, engaging late into Drive on a cold morning, or leaking from the pan and front seal, the clutches and seals inside have usually reached the end together. This new overhaul kit is listed for 2004 units. The product photo shows sealed packs of friction plates and steel plates alongside the gasket and seal set, with the pan gasket, sealing rings and the front and rear seals visible.
The 4L60E uses hydraulic pressure to apply its overrun, forward, 3-4, reverse input and low/reverse clutches and its 2-4 band. Each piston only works if its seals hold oil, and each clutch only grips if the friction lining is healthy. Overheat the fluid a few times while towing and the lip seals harden, the Teflon rings groove, and the frictions glaze. This kit replaces those wear items in one go, so the case, pump and drums you are reusing are resealed and given fresh friction surfaces at the same time. Because the steels are included, you are not stacking new frictions against plates that may be heat-blued or out of flat.
A 2004 4L60E can feel like it is slipping when the real fault is electrical. Code P0748 points to the pressure control solenoid circuit, P0741 to converter clutch slip that is often valve body related, and shift solenoid faults can leave the truck stuck in one gear. Our 4L60E shift solenoid guide covers how to test those before you pull the transmission. If the problem is a burned 3-4 pack, the 3-4 clutch apply and AFL valve guide explains the pressure problem behind it, which needs to be fixed during the rebuild. For a broader list, see our 4L60E common problems guide.
This listing is for the 2004 4L60E. That year sits right after the point where rebuild kits split into 1993-2003 and 2004-up versions, so a kit for an earlier truck is not a safe substitute, and parts from the 2003 units can differ. Confirm you have a 4L60E (glovebox RPO M30) and not a 4L65E (RPO M32), which GM fitted to some trucks and SUVs in this era and which uses a different 3-4 clutch pack. Check the case ID tag, and send us your year and VIN if you want us to confirm before you order. If your truck is a later year, see the separate 4L60E overhaul kit for 2004-2013, and browse every part for this unit on the 4L60E parts page.
| Fits | 4L60E 2004 |
| 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.
It is listed for 2004. Rebuild kits for the 4L60E are split between 1993-2003 and 2004-up units, so a 2003 truck should use a kit listed for its year. Send us your VIN if you are unsure.
The product photo shows friction plates and steel plates in sealed packs plus the gasket and seal set, including the pan gasket, sealing rings and front and rear seals. Hard parts such as drums, the pump and solenoids are not included.
No. The 4L65E, RPO M32, uses a different 3-4 clutch pack. Check the glovebox RPO label or the case tag to confirm you have the 4L60E, RPO M30.
If the truck had shift or pressure control codes, yes. Test the solenoids and internal harness while the pan is off, because a rebuild will not fix an electrical fault.
Dexron VI ATF. After a rebuild with a drained converter, fill, start the engine, add fluid as it pumps through, and set the final level hot.
