4L80E 4L85E [91-UP] Automatic Transmission Kit Seal Pump

When a 4L80E or 4L85E automatic transmission develops a front pump leak or loses line pressure, the cover gasket, body o-ring, front seal, and pump bushing are the first components to inspect, and this set covers all four in a single order. What makes this group of parts worth noting is that it combines sealing pieces from two different coverage ranges into one package: the pump cover-to-case gasket, the pump body o-ring shared with the 4L60E, and the front metal clad seal all apply to units built from 1991 up, while the wide babbitt bushing at .700 inches applies to 4L80E pumps from 1997 up.

Each of the four pieces is picked and packed individually at the REMCO facility, the same operation that has been handling automatic transmission parts since 1991. The box ships with a printed parts list so the technician can confirm every item before teardown begins. The set weighs 0.4 lb total.

This set is front-pump specific. It does not include clutch packs, friction discs, steels, an Automatic Transmission Filter, bands, solenoids, or any other internal components. If your overhaul requires those parts, they need to be sourced separately. Verify the transmission identification code on the unit itself is 4L80E or 4L85E and confirm the model year before ordering, paying particular attention to whether the bushing coverage starting at 1997 matches your build date.

• Sealing failures at the front pump are among the most common causes of pressure loss in these units; this set addresses the cover gasket, body o-ring, metal clad seal, and pump bushing in one pull.
• This set does NOT include clutch discs, steels, Automatic Transmission Filter, bands, or any other internal components. If your repair calls for those parts, check your parts list before ordering to avoid a second shipment.
• The pump bushing included is the wide babbitt type at .700 inches, specific to the 4L80E pump bore from 1997 up; the metal clad front seal and cover gasket cover units from 1991 up, and the body o-ring fits both 4L80E and 4L60E from 1991 up.
• Contents: 1 pump cover-to-case gasket [91-UP], 1 pump body o-ring [91-UP], 1 front metal clad seal [91-UP], 1 pump babbitt bushing wide .700 [97-UP]. Total: 4 pieces, 0.4 lb shipped.
• Before ordering, confirm your transmission code is 4L80E or 4L85E and verify the build year of your unit; the bushing applies from 1997 up while the remaining three pieces apply from 1991 up.

What's in the box

• 1 x Pump, 4L80E 4L60E Body O-ring
• 1 x Gasket, 4L80E Pump Cover To Case
• 1 x Bushing, 4L80E Pump [Babbit] [Wide .700" Thick]
• 1 x Seal, 4L80E Front Metal Clad

Compatible vehicles

• Fits Silverado 2500 [99-04], Sierra 2500 [99-04], Silverado 2500 HD [01-07], Sierra 2500 HD [01-07], Silverado 3500 [01-07], Sierra 3500 [01-07], Silverado 1500 HD [01-07], Sierra 1500 HD [01-07], Suburban 2500 [00-07], Yukon XL 2500 [00-07], Yukon XL 1500 [01-03], Suburban 1500 [01-03], Avalanche 2500 [02-06], Express 2500 [96-09], Express 3500 [96-09], Savana 2500 [96-09], Savana 3500 [96-09], C1500 Suburban [93-99], C2500 Suburban [93-99], K1500 Suburban [93-99], K2500 Suburban [93-99], Yukon [93-01], H1 [92-06].