45RFE 5-45RFE 65RFE 66RFE 68RFE TRANSMISSION VALVE BODY ACCUMULATOR PISTON KIT H.D. BY SONNAX FITS '99+

SKU:
S72937HD
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New
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DODGE, JEEP, & CHRYSLER
45RFE
5-45RFE
65RFE
66RFE
68RFE
'99+ AUTOMATIC TRANSMISSIONS:
VALVE BODY ACCUMULATOR PISTON KIT
SONNAX 44894-01K
6061 BILLET ALUMINUM PISTON
WITH PTFE SEALING RINGS & SEAL
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  • Accumulator piston scuffing and bore wear are common issues in Chrysler 45RFE, 545RFE, 65RFE, 66RFE and 68RFE valve bodies, especially when running increased pressures. The OE accumulator pistons have two seal rings. The seal groove at the open end of the piston is a larger diameter, with the seal ring acting as a guide to prevent piston-to-bore contact. The seal groove at the closed end of the piston is a smaller diameter and the seal ring acts as a conventional seal. However, due to the smaller seal groove diameter, the piston will contact the bore when side-loaded resulting in scuffing, wear and leakage of clutch apply pressure.
  • Sonnax accumulator piston kit 44894-01K features two guide seal rings, one at each end of the piston to prevent piston-to-bore scuffing when side loaded. Additionally, the oil sealing ring location is relocated on the piston allowing it to run in an un-worn portion of the bore enabling bores with moderate scuffing to be salvaged. Manufactured from 6061 billet aluminum, these pistons will upgrade late model applications with plastic pistons to prevent transmission failure due to piston breakage.
  • FITS 45RFE, 5-45RFE, 65RFE, 66RFE, 68RFE EQUIPPED '99+ DODGE, CHRYSLER, JEEP, & MITSUBISHI

  • VALVE BODY ACCUMULATOR PISTON KIT
  • 6061 BILLET ALUMINUM PISTON
  • WITH PTFE SEALING RINGS & SEAL
  • SONNAX 44894-01K
  • Dual-guide seals prevent piston-to-bore scuffing
  • Updated seal location allows use in scuffed bores
  • Prevents transmission failure from broken plastic pistons
  • KIT REPLACES ONE PISTON. IF REPLACING ALL FIVE, SAVE MONEY, SEE ITEM S72937HDK,  FIVE PIECE SET
  • REPLACES MOPAR 4446620
  • PHOTO SHOWS ACTUAL ACCUMULATOR PISTON KIT
  • FREE SHIPPING TO ALL 50 U.S. STATES & PUERTO RICO!
  • WE SHIP WORLD WIDE
FITS '99+:
45RFE 5-45RFE 65RFE 66RFE 68RFE