4L70E Master Rebuild Kit 2004-2013, new and ready to install. Fits the 4L70E. Ships fast from the USA.
A Silverado, Sierra, Tahoe or Yukon with a high-mileage 4L70E that slips on the 2-3 shift, hunts for fourth, or comes out of the pan with black fluid and friction dust has usually gone past the point of a solenoid or a fluid service. This master rebuild kit covers the 2004-2013 span and is meant for a full teardown. The product photo shows more than a basic overhaul set: alongside the frictions and steels it includes rubber-bonded pistons, a pan gasket, a new filter, valve body gaskets, lip seals and sealing rings, which is what you want when the unit has been hot enough to harden the old piston rubber.
The 4L70E is the heavy-duty version of GM's 4L60E family, called the 4L70-E Super Duty in GM's own owner manual. Power flows through five clutch packs (forward, overrun, 3-4, reverse input and low/reverse) and the 2-4 band, all applied by hydraulic pistons fed from the pump through the valve body. When a 4L70E wears out, it rarely fails in just one pack, because the heat from one slipping clutch cooks the fluid that every other clutch and seal depends on. A master kit renews every friction surface and every seal in one order, so you are not reassembling a unit with a fresh 3-4 pack next to 150,000-mile piston seals.
Pull the pan and look at what is in it before committing to a rebuild. Fine gray paste is normal; flakes of friction lining or brass chips are not. Scan for codes too, because not every 4L70E complaint is internal wear. Transmission Digest documents a P0716 or P0717 input speed sensor fault on this unit caused by the ISS harness chafing against the reverse input drum, and a separate case where fluid leaking out of the vent traced to a missing ISS O-ring or retaining bolt, since the ISS and vent passages connect in the pump. Rule those out first. Our 4L70E common problems guide lays out the order of checks, and the 3-4 clutch failure guide explains the leak tests that tell you why the clutches burned.
This kit is listed for 2004-2013 4L70E units, which covers the late-design family used across GM's full-size trucks, SUVs and performance applications in that window. The 4L70E name is most common on 2006-2013 Chevrolet and GMC trucks and SUVs, plus some Cadillac and Pontiac models, and the same case was also built as the 4L60E and 4L65E with different clutch counts. Read the tag on the driver side of the case before ordering, and on teardown count the plates in each pack against the kit. If the tag is unreadable, send us your year and VIN. Our interchange guide explains which parts cross between the three, and the 4L70E collection lists the other kit years.
A worn pump starves every new clutch, so many rebuilds add the 4L70E pump. If the old unit had line pressure or wrong-gear complaints, the 2006-2013 4L70E valve body replaces worn bores, and the 4L70E shift kit firms up the 1-2 and 2-3 shifts so the new clutches spend less time slipping.
| Fits | 4L70E 2004-2013 |
| Part type | Master 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.
The product photo shows rubber-bonded pistons along with the frictions, steels, filter, pan gasket and seals. If you need the exact piece count confirmed for your build, contact us with your case tag before ordering.
The kit is listed from 2004, but the 4L70E tag mostly appears on 2006-2013 vehicles; many 2004-2005 trucks carry a 4L60E or 4L65E with different clutch counts. Check the tag on the case or send us your year and VIN.
Inspect and replace as needed: the pump, the input housing and sun shell, bushings, and the valve body if it had pressure complaints. Have the torque converter serviced or replaced, since a rebuild kit does not include it.
Possibly. Transmission Digest traces P0716 and P0717 on the 4L70E to a chafed ISS harness or a missing ISS O-ring or bolt. Check that first; it only calls for a rebuild if you also have slipping or debris.
DEXRON-VI, per GM. The 5.0 quart figure in the owner manual covers a pan service, so a rebuilt unit with a drained converter needs more. Set the final level with the fluid at operating temperature.
