ZF 4642.306.153 VALVE HOUSING for WG180 | OEM Genuine Part

Overview

The ZF 4642.306.153 VALVE HOUSING is a precision-machined hydraulic control body designed for the WG180 series transmissions. This OEM genuine part serves as the central manifold that directs pressurized transmission fluid to the clutch packs and shift valves, governing gear engagement and torque converter lock-up. The SKU 4642.306.153 sits directly atop the main transmission casing, interfacing with the valve body spools and solenoids. When this component degrades, internal fluid routing becomes compromised, leading to erratic shift behavior and pressure loss across the hydraulic circuit.

Symptoms of Failure

• Delayed or harsh gear engagement – Worn internal bores in the valve housing cause pressure bleed-off, resulting in a noticeable lag when shifting from Neutral to Drive or Reverse.
• Transmission fluid leaks at the valve body interface – Cracks or warpage in the housing casting allow ATF to seep past the mating surface, often pooling near the 4644105475: DISCONNECTION assembly.
• Slipping under load – Inadequate line pressure due to internal cross-leakage causes the clutch packs to slip during acceleration, particularly in 3rd and 4th gears.
• Erratic shift patterns – Contaminated or worn valve housing galleries produce inconsistent shift timing, often accompanied by a “flaring” sensation between gears.

Technical Specifications

Compatibility

This valve housing is engineered for the ZF WG180 series transmissions commonly found in medium-duty trucks, buses, and off-highway equipment. It is also compatible with the WG200 series due to shared hydraulic architecture. The part interfaces directly with the 4642303097: OUTPUT FLANGE and is secured using 0636020211: HEXAGON SCREW fasteners. The complete assembly mounts to the 4644101134: TRANSMISSION HOUSING to form the sealed hydraulic control unit.

Related Components

Authorized ZF Distributor

We are a certified supplier of genuine ZF components.