Sonnax 44912-17K Lube Regulated Pressure Regulator Valve for Chrysler RFE Transmissions

The Sonnax 44912-17K lube regulated pressure regulator valve restores the fluid connection to the converter circuit at idle, which is especially important on tuned vehicles. This drop-in replacement valve is designed specifically for vehicles equipped with Chrysler 45RFE, 545RFE, 65RFE, 66RFE, and 68RFE transmissions that experience reduced converter and cooler flow at idle after aftermarket tuning or heavy-duty operation, as tuning often increases idle line pressure which can cause the factory pressure regulator to restrict oil flow.

Key Features:

• Internal check valve maintains consistent converter and lube oil flow under high-demand conditions while properly sealing the converter when the engine is shut off, preventing drainback and delayed engagement
• Annular grooves help center valve in bore to reduce side-load wear
• Sonnax Zip Valve drop-in design for quick and easy installation
• Restores proper converter and lube flow while preventing drainback potential from drilled castings

Installing this upgraded pressure regulator valve restores proper hydraulic flow to the converter circuit, improving overall transmission reliability and drivability in demanding applications. This valve is ideal for high-performance and heavy-duty applications where factory pressure regulators may restrict critical fluid flow.