4T40E 4T45E [95-UP] Automatic Transmission Piston Reverse Input Clutch

A piston that leaks past its seal applies the pack slowly, and slow apply is what burns friction material.

4T40E reverse input clutch piston. This piston set restores a positive seal so the pack applies with full pressure behind it.

Bore finish is what the seal wipes against for the life of the unit. Shipping weight is 1 lb.

The parts list below is exactly what ships. Compare it against your teardown before ordering.

REMCO has supplied automatic transmission parts since 1991, and every order ships with its part listing so the receiving technician can check what arrived against what was ordered.

• Transmission Piston Kit for 4T40E - replacement component designed for proper fit and function
• Designed to support proper clutch apply pressure, stroke and sealing during piston and seal work
• Package Includes: one transmission piston kit as described, supplied loose for piston and seal work
• Bonded rubber lip seals on a steel or aluminum piston body - designed for dependable service in the intended application. Ships at 1.00 lb, 2.3x2.3x2.5 in
• Intended for builders correcting apply pressure loss. Lubricate the lip seals before assembly and seat the piston square in the bore

What's in the box

• 1 x Piston, 4T40E 4T45E Reverse Input Clutch

Compatible vehicles

• Fits Cavalier [95-05], Sunfire [95-05], Grand Am [96-05], Alero [99-04], Malibu [97-10], Cutlass [97-99], Achieva [97-98], Cobalt [05-10], HHR [06-11], Classic [04-05], G5 [07-09], G6 [05-10], Vue [05-10], Ion [05-07], Aura [07-09], L100 [01-02], L200 [01-03], L300 [01-05], LW200 [01-03], LW300 [01-03], LS [00], Lanos [99-02], Nubira [99-02].