Sonnax 36425-01K Front Lube Drainback Valve Kit for Ford 4R100 E4OD

The Sonnax 36425-01K front lube/drainback valve kit provides a melt-proof solution for Ford 4R100 and E4OD automatic transmissions. The OE plastic front lube/drainback valve assembly can melt at elevated fluid temperatures, and once the plastic ball seat or ball seat stop melts it can restrict the front lube oil feed circuit, resulting in overdrive planetary failure.

Key Features:

• Ball seat and stop manufactured from high-quality aluminum to withstand elevated fluid temperatures and prevent melting
• Prevents planetary failure caused by melted OE plastic components
• Ensures integrity of the front lube oil feed circuit
• Direct replacement for OE plastic valve assembly

Kit Includes:

• Front lube/drainback valve assembly
• Cup plug

This upgrade kit is essential for preventing common failure points in 4R100 and E4OD transmissions, particularly in high-temperature operating conditions. The aluminum construction provides superior durability compared to the factory plastic components.