4L65E Clutch Module 2004, new and ready to install. Fits the 4L65E. Ships fast from the USA.
New frictions stacked against warped or heat-blued steels will chatter, slip and burn again, which is why a 4L65E that has been run hot in a Silverado, Sierra, Tahoe or Yukon usually needs both halves of every clutch pack. This listing is the steel half: a complete steel plate module for 2004-up 4L60E and 4L65E transmissions, with stock-thickness .095 in. 3-4 steels and turbulator-style plates in the reverse input and low/reverse packs. It does not include friction plates, so plan to pair it with a friction module.
In each clutch pack the steels alternate with the frictions. The steels are splined to one member, the frictions to another, and when the piston squeezes the stack the two lock together. The steel surface has to be flat and clean for the friction lining to grip evenly, and it is the steel that soaks up most of the heat of each shift. Once a steel cones or blues, the pack loses contact area and clearance goes out of spec. This module supplies:
Turbulator plates carry small holes through the steel so fluid moves across the pack and pulls heat out while it is applied or freewheeling.
You can only judge steels on the bench, so this is a teardown decision. Lay each plate on a surface plate or a sheet of glass and check for rock, and look for bluing on both faces. Burnt steels in the 3-4 pack mean you also need to find out why it overheated: low line pressure, worn pump or input housing sealing rings, and the 3rd accumulator checkball are the usual suspects. Our 4L65E 3-4 clutch failure guide covers those tests, and the 4L65E pump failure guide explains how a tired pump starves the packs.
The listing covers 2004-and-later 4L60E-pattern steel sets, which includes the 4L65E built in GM trucks and SUVs through 2007. The 3-4 steel count and thickness have changed over the life of this family, and a 4L65E 3-4 pack is not always stacked the same as a light-duty 4L60E. Count the steels in each of your packs and measure an old 3-4 steel before ordering; if your 3-4 drum takes more steels than this set provides, tell us your year and VIN first. All of our 4L65E parts are in the 4L65E collection.
| Fits | 4L65E 2004 |
| Part type | Clutch Module |
| 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.
No. It is steels only: 5 forward, 2 overrun, 4 reverse input, 5 low/reverse and 6 3-4 steels. Pair it with a friction module for a complete clutch rebuild.
Steel plates with small holes through them. The holes let fluid move across the clutch pack to carry heat away, which helps the reverse input and low/reverse clutches run cooler.
Only if they are flat, free of heat bluing and hard spots, and the drive lugs are not notched. A 4L65E that burned a clutch pack almost always has at least some steels that should be replaced.
The set is listed for 2004-up units. Plate counts and 3-4 steel thickness changed across production, so count and measure your old steels or send us your year and VIN before ordering for an earlier unit.
Frictions, piston seals, sealing rings and gaskets at minimum. Also inspect the input housing, pump and reaction and sun shells, since any of them can cause the same clutch failure again.
