4L80E Rebuild Kit 4L80-E 4L85E 4L85-E Automatic Transmission Master Overhaul Banner Box Set

OPT Product Code: OPT-4L80E-RB
$156.80

4L80E Rebuild Kit 4L80-E 4L85E 4L85-E Automatic Transmission Master Overhaul Banner Box Set

OPT Product Code: OPT-4L80E-RB
$156.80

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Product Details


New master rebuild kit for the 1991-2010 GM 4L80E and 4L85E automatic transmission.

This kit contains all of the following overhaul rebuild parts:

  • All friction clutch plates
  • New fluid filter
  • Overrun brake band
  • Bushings for the pump and case
  • All rubber clutch piston seals
  • All paper gaskets
  • All O-rings
  • All metal clad seals
  • Teflon and steel sealing rings
  • Duraprene pan gasket

The Transtec gasket overhaul set contained within this box kit is highly rated and used by most rebuild shops.

Additionally, you can add the following 4L80E transmission upgrades:

  • Raybestos steel plate kit (pictured)
  • Reverse band – High energy or Kevlar (pictured)
  • Molded rubber pistons kit (1997-up)
  • ATSG rebuild manual
  • Transgo Shift Kit, Superior shift correction, Sonnax Sure Cure, or Fairbanks PowerTow
  • Torrington bearing kit
  • Thrust washer kit
  • Full bushing set
  • Transgo HD separator plate
  • Low roller clutch
  • Intermediate sprag – 16 or HD 34 element
  • Overdrive roller clutch
  • Electronics kit
  • HD Torque converter

The 4L80E and its variants were in production from 1991-2010 and can be identified by the 17 bolt oil pan and 4 forward gears.  Typically, this transmission is found in the heavier duty trucks and vans; mostly the 2500 and 3500 series.  It will also be found in the heavy half-ton, such as the 1500HD, SS, or Denali truck with the 6.0L

The 4L80E and 4L85E transmissions were found in the following GM labels and other brands; Chevrolet, GMC, Hummer H1, Isuzu NPR, Jaguar, Aston Martin, Bentley, Rolls-Royce

These transmissions can be found in the following vehicles; however you should double check your application with the 16 bolt pan count and square shape.  It is common for similar vehicles to have multiple transmission options available from the factory.

  • Aston Martin DB7 1996-1999
  • Avalanche 3/4 ton 2002-2006
  • Bentley 1991-2006 (confirm 4 speed with 17 bolt pan)
  • Hummer H1 1991-2005
  • Isuzu NPR gas engine 1990-2007
  • Jaguar XJS, XJS-R, XJ12 1993-1998
  • Motor Homes 1995-2005
  • Rolls-Royce 1992-2003
  • Sierra Pickup 1991-2010
  • Silverado Pickup 1991-2010
  • Suburban 6.0L 1996-2007
  • Tahoe 6.0L, 8.1L 1995-2003
  • GMC & Chevy Van 1991-2009
  • Yukon XL 6.0L, 8.1L 1995-2003

This transmission is part of the Turbo-Hydramatic series and also known by the following codes and model numbers: 4L80E, 4L80-E, MT1, 4L85E, 4L85-E, MN8

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