4L65E Banner Rebuild Kit 2004, new and ready to install. Fits the 4L65E. Ships fast from the USA.
If your 2004 Silverado, Sierra, Tahoe, Yukon, Suburban or Avalanche with the 5.3L or 6.0L has started flaring into 4th, slipping when it pulls a trailer up a grade, or leaving a puddle under the bellhousing, this is the kit for a 2004 4L65E teardown. The photo shows an overhaul gasket and seal kit in its bag, a second sealed parts bag, two clutch plate packs in their shipping sleeves, and a new 2-4 band, so the band that wraps the reverse input drum gets replaced along with the clutches.
The 4L65E is GM's heavy-duty version of the 4L60E, rated by GM Performance at 430 lb-ft and filled with DEXRON-VI. It shifts by applying clutch packs and the 2-4 band with line pressure, and that pressure has to travel through sealing rings and lip-sealed pistons before it can clamp anything. After years of towing and heat cycles the frictions glaze, the band lining thins, and the seals harden. A banner kit replaces those soft parts in one purchase: the gaskets and seals that hold pressure, the frictions and band that carry torque, and the filter that keeps debris out of the valve body. It costs less than a master kit because it skips steels and bushings, which you reuse when they measure good.
A 2004 truck can feel like it has worn clutches when the real fault is in the valve body. Sonnax ties wear in the TCC regulator bore to P1870, overheated converters, lost line pressure and burnt clutches, so if you only replace frictions the new ones can burn again. Start with codes and a look at the pan, then work through our 4L65E Silverado 1500 shift problems guide to separate a solenoid or pressure fault from mechanical slip. The 4L65E common problems and fixes guide covers which hard parts usually fail alongside the clutches.
This listing is cataloged for the 2004 4L65E. 2004 is the first year of the later-design kits, so it is not the kit for a 2001-2003 unit. If you want one kit that is cataloged for the full later run, the 2004-2014 banner kit is the alternative. Gaskets and plates can still differ within a single model year, so compare the separator plate gaskets and pan gasket to the parts you remove before you assemble. If you are unsure which version your truck has, send us the year and VIN and we will check it. Every part for this unit is on the 4L65E collection page.
| Fits | 4L65E 2004 |
| Part type | Banner 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.
Yes. The photo shows a new 2-4 band along with the gasket and seal kit and two clutch plate packs. Steels and bushings are not included in a banner kit.
No. This kit is cataloged for the 2004 design. A 2001-2003 4L65E needs an earlier kit. Send us the year and VIN if you are not sure which you have.
Not by itself. Sonnax links P1870 to wear in the TCC regulator valve bore. Repair the valve body at the same time, or the new clutches can burn again.
DEXRON-VI. GM lists 11.2 quarts dry for the 4L65E. A pan drop takes far less, so fill to the dipstick and check the level hot.
Plan for steels and bushings if the old ones are heat-marked, and inspect the sun shell and input drum. Replacing the solenoids while the valve body is off is cheap insurance on a high-mileage truck.
