5-45RFE Complete Transmission Rebuild Kit [2004-UP]OE-quality automatic transmission kit designed for service or rebuild applications, providing reliable fit and consistent performance when installed according to specification.WHAT'S IN THE BOX:- 5-45rfe bonded piston kit (5-pistons) 2004-up (PK-K13900A-99)Vehicle Compatibility:- Aspen [07-09] 4.7, 5.7- Dakota [04-11] 4.7, 5.7- Durango [04-11] 4.7, 5.7- Ram 1500 1/2 Ton - Pickup [04-11] 4.7, 5.7- Ram 1500 1/2 Ton - Pickup [04-12] 4.7, 5.7- Mega Cab 1/2 Ton - Pickup [06-08] 5.7L- Mega Cab 3/4 Ton - Pickup [06-12] 5.7L- Ram 2500HD 3/4 Ton - Pickup [04-09] 5.7L- Ram 3500HD 1 Ton - Pickup [04-12] 5.7, 8.0- Commander [06-10] 3.7, 4.7, 5.7- Grand Cherokee [04-11] 4.7, 5.7, 6.4L- iberty [04-06] 2.8, 3.7- Wrangler [07-10] 2.8L- Raider [06-07] 4.7L- Durango [11-13] 5.7L- Ram 1500 1/2 Ton - Pickup [07-18] 6.7L- Ram 2500HD 3/4 Ton - Pickup [07-15] 5.7, 6.4, 6.7- Ram 3500HD 1 Ton - Pickup [07-15] 5.7, 6.7- Ram 5500HD Pickup [08-09] 6.7L- Grand Cherokee [12-13] 5.7LEngines: 2.8L, 3.7L, 4.7L, 5.7L, 6.4L, 6.7L, 8.0L Transmission Piston Kit for 5-45RFE - 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 6.00 lb, 17x15x5 in Intended for builders correcting apply pressure loss. Lubricate the lip seals before assembly and seat the piston square in the bore