A pack with a leaking piston never reaches full clamp, whatever the pressure gauge says.

45RFE Undredrive Piston Spring 4799101. Each piston is produced to the bore and travel of the position it serves.

Seal orientation determines whether the piston holds pressure or vents it. 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 Hard Part for 45RFE, 68RFE - replacement component designed for proper fit and function
• Designed to support proper torque transfer, alignment and internal support during an internal repair
• Package Includes: one transmission hard part as described, supplied loose for an internal repair
• Hardened steel machined to the stock dimensions - designed for dependable service in the intended application. Ships at 1.00 lb, 18x16x5 in
• Intended for builders replacing worn internal components. Inspect the mating surface for scoring and measure end play after assembly

What's in the box

• 1 x Piston, 45RFE 68RFE Undredrive Spring 4799101

Compatible vehicles

• Fits Dakota [00-03], Durango [00-03], Grand Cherokee [99-03], Liberty [02-03], Aspen [07-09], Ram 1500 1/2 Ton - Pickup [02-12], Ram 1500 Mega Cab 1/2 Ton - Pickup [06-08], Ram 2500 Mega Cab 3/4 Ton - Pickup [06-12], Ram 2500HD 3/4 Ton - Pickup [03-09], Ram 3500HD 1 Ton - Pickup [03-12], Commander [06-10], Wrangler [07-10].