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Brand: Sonnax

Interchange Part Number: S36741GK

Fitment Type: Performance/Custom

Items Included: Plunger Valve, Sleeve, O-Ring

Manufacturer Part Number: 36948-03K

Material: Steel

Universal Fitment: Yes

Vintage Part: No

Performance Part: No

4R100, E4OD

Line Pressure Modulator Plunger Valve Kit
Part No. 36948-03K

Some Ford E4OD and 4R100 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 36948-03K eliminates 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

  • Plunger Valve
  • Sleeve
  • O-Ring
  • Dia.: 0.331"

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