ZF 4644.302.235 OIL FEED FLANGE for WG180 | OEM Genuine Part

Overview

The ZF 4644.302.235 OIL FEED FLANGE is a critical hydraulic component engineered specifically for the WG 180 series transmission. This OEM genuine part directs pressurized transmission fluid from the pump to the torque converter and lubrication circuits, ensuring consistent hydraulic pressure across the drivetrain. Positioned at the interface between the pump housing and the main valve body, the SKU 4644.302.235 maintains precise oil flow paths that prevent pressure drops and overheating. Without this flange, the transmission cannot establish the hydraulic control necessary for gear engagement.

Symptoms of Failure

• External oil leaks at the pump housing joint: A worn or cracked 4644.302.235 flange often causes visible fluid seepage around the TRANSMISSION HOUSING interface, leaving puddles under parked vehicles.
• Delayed or harsh shifting: When the oil feed flange loses sealing integrity, hydraulic pressure drops, leading to gear slipping or clunky engagement during acceleration.
• Torque converter shudder: Insufficient oil supply through a degraded flange causes the converter to vibrate or fail to lock up properly, especially under load.
• Overheating transmission fluid: Restricted oil flow from a blocked or warped flange forces the system to run hotter, triggering warning lights or burnt fluid odor.

Technical Specifications

Compatibility

This oil feed flange is primarily designed for the ZF WG 180 series, but it also fits select WG 200 and WG 160 variants that share the same pump housing architecture. The part interfaces directly with the TRANSMISSION HOUSING and requires the TYPE PLATE for proper identification during rebuilds. For secure mounting, use the GROOVED STUD to align the flange before torquing. Always verify your transmission’s serial number against the OEM parts catalog before ordering.

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