4R100, AX4N, E4OD

Line Pressure Modulator Plunger Valve Kit
Part No. 96948-05K

Extreme heavy duty, .500" dia.

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Some E4OD, 4R100 and AX4N transmissions have soft 1-2 or 2-3 shifts, intermittent harsh shifts or poor line rise complaints. These can be caused by ECU (electronic control unit) or accumulator pressure problems. Severe wear of the line pressure modulator sleeve allows EPC (electronic pressure control) oil to leak past the valve and cause soft shifts. Severe wear can also cause the valve to stick or hang up, causing harsh shifts. Sonnax line pressure modulator plunger valve kit 96948-05K eliminates that eliminate this oil loss problem in listed units.

  • Sleeve is manufactured from carbon steel to prevent excessive wear
  • Valve is made from hardened alloy steel for better wear resistance
  • O-Ring helps prevent EPC oil loss
  • Annular grooves center valve in sleeve and eliminate sideloading
  • Improves shift firmness
OE Application OE Valve Diameter Sonnax Part No.
6-Cylinder & Small 8-Cylinder Applications .331" 36948-03K
Large 8-Cylinder Applications .372" 36948-05K
Heavy Duty/High Performance or Stock AX4N ('97-Earlier) Replacement .427" 96948-01K
Extreme Heavy Duty/High Performance .500" 96948-05K

.500" Diameter valve is larger than OE .331" and 372" sizes and will result in higher accumulator pressure and firmer than stock 1-2, 2-3 and 3-4 shifts.

  • Plunger Valve
  • Sleeve
  • O-Ring
  • Dia.: 0.500"
  • 4R100, AX4N, E4OD Line Pressure Modulator Plunger Valve Kit 96948-05K
  • 4R100, AX4N, E4OD Line Pressure Modulator Plunger Valve Kit 96948-05K