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OE Spec or Performance/Custom: Performance/Custom

Other Part Number: Transmission, Valve body, Shift kit, Upgrade

Fitment Type: Direct Replacement

Items Included: Line Pressure Modulator Plunger Valve Kit

Manufacturer Part Number: 36948-05K

Material: Steel

Superseded Part Number: transmission valve body

Vintage Part: No

Brand: SONNAX

Type: Valve Body

Core Charge: no

Interchange Part Number: Ford F150 F250 F350 F450 E150 E250 E350

Manufacturer Warranty: 6 Month

Surface Finish: Quality new Sonnax product made in USA

Country/Region of Manufacture: United States

Universal Fitment: Yes

Performance Part: Yes

4R100, E4OD Transmission

Line Pressure Modulator Plunger Valve Kit
Part No. 36948-05K

Some Ford E4OD, 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 36948-05K eliminates this oil loss problem.
  • 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

Large 8-cylinder applications: .372"

  • Plunger Valve
  • Sleeve
  • O-Ring
  • Dia.: 0.372"

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