4L80E Banner Rebuild Kit 1992-1996, new and ready to install. Fits the 4L80E. Ships fast from the USA.
If you are rebuilding an early 4L80E out of a 1992-1996 Chevrolet or GMC 2500 or 3500 pickup, a Suburban 2500 or a full-size van, this banner kit covers the parts that wear out: the complete overhaul gasket and seal set and a pack of new friction plates. It is listed under part number KP3400E W/O for the 1992-1996 4L80E. Trucks of this age come to the bench with burnt fluid, soft shifts and a slide on the 2-3, and those are clutch and seal problems a kit like this exists to fix.
Every gear in the 4L80E is made by applying clutch packs and bands with hydraulic pistons, and the pump has to feed those pistons through seals and sealing rings that hold pressure. Once lip seals harden and frictions glaze, apply pressure leaks away and the plates slip instead of locking. This kit renews the rubber and the friction material so each pack clamps fully again. The 1992-1996 units are the original pump-lube design: until 1997, cooler return oil came back through the pump rather than the center support, and the internal hard parts of these years are not interchangeable with later center-lube parts.
That last item has an outside cause worth knowing. Transmission Digest reports that GM put an electronic injection pump and accelerator pedal sensor on the 6.5L diesel in 1994, and a leaking pump can feed the engine extra fuel at very low pedal. The computer then commands too little line pressure for the real engine output, and the 4L80E burns those three clutches. On a 1994-1996 diesel, check the injection pump before the new kit goes in or the rebuild will burn up the same way.
Rule out electrical faults first: early units used different pressure control solenoids, and ATRA notes that 1994 brought a new pressure control solenoid, new shift solenoids and a new harness connector. Read codes, check the solenoids and run a line pressure test. Our 4L80E shift solenoid symptoms guide walks through the A and B solenoid checks, and the 4L80E rebuild cost guide explains which extra parts typically add to the bill.
This kit is listed for 4L80E transmissions from 1992 through 1996. If your transmission is a 1991, or a 1997 or later center-lube unit, use a kit for that range; the 1997-2011 banner kit covers the later design. Some early trucks also had transmissions swapped over the years, so check the ID tag on the case rather than the truck title. Send us your year, VIN or tag code and we will confirm before it ships. The full early-unit lineup is on our 4L80E parts page.
| Fits | 4L80E 1992-1996 |
| 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.
Chevrolet and GMC 2500 and 3500 pickups, Suburban 2500 and full-size vans of those years with the heavy-duty 4-speed automatic. Check the ID tag on the transmission case to confirm the unit is a 4L80E and its year.
It covers the overhaul gaskets and seals plus the friction plates. Steels, bands and bushings are separate, so inspect them during teardown and replace any that are worn or heat-damaged.
No. In 1997 GM switched the 4L80E to center lubrication and redesigned many internal parts. Use the 1997-2011 banner kit for those units.
Possibly not. A leaking electronic injection pump on 1994-and-later 6.5L trucks can make the computer command too little line pressure, burning the forward, intermediate and direct clutches. Diagnose the engine side before installing the kit.
Dexron VI ATF. It replaces the older Dexron grades and is backward compatible with these early 4L80E units.
