Sonnax 36948-03K Line Pressure Modulator Plunger Valve Kit - 0.331 E4OD 4R100

The Sonnax 36948-03K line pressure modulator plunger valve kit solves common E4OD and 4R100 transmission shifting problems including soft 1-2 or 2-3 shifts, intermittent harsh shifts, and poor line rise caused by severe wear of the line pressure modulator sleeve that allows EPC (electronic pressure control) oil to leak past the valve. Severe wear can also cause the valve to stick or hang up, resulting in harsh shifts.

Key Features:

• Carbon steel sleeve construction prevents excessive wear
• Hardened alloy steel valve provides better wear resistance
• O-ring helps prevent EPC oil loss
• Annular grooves center valve in sleeve and eliminate sideloading
• Improves shift firmness
• 0.331" diameter for 6-cylinder and small 8-cylinder applications

Kit Contents: Plunger valve, sleeve, and O-ring.

Sonnax offers four size variations of the line pressure modulator sleeve and valve kit that eliminate oil loss problems, ensuring you get the precise fit needed for proper transmission function and optimal shift quality.