ZF 0636.101.116 CAP SCREW for WG150 | OEM Genuine Part

Overview

The ZF 0636.101.116 CAP SCREW is a critical fastening component engineered specifically for the WG 150 Series transmission assembly. This OEM genuine part secures the transmission housing cover to the main casing, ensuring proper clamping force and sealing integrity under high-torque operating conditions. As a precision-machined fastener, the SKU 0636.101.116 maintains the structural alignment of internal gear sets and hydraulic circuits. It works in conjunction with the 4642101109: TRANSMISSION HOUSING and the 4642301205: TRANSMISSION HOUSING to create a leak-proof enclosure for the gear train.

Symptoms of Failure

• Transmission fluid seepage around housing bolts: A worn or stretched cap screw reduces clamping force, allowing ATF to escape past the gasket interface.
• Abnormal gear whine or vibration during load shifts: Loose fasteners permit micro-movement between housing halves, altering gear mesh patterns.
• Intermittent loss of hydraulic pressure: Insufficient bolt tension can distort the housing, causing valve body misalignment and erratic shift quality.
• Visible corrosion or thread galling on removal: Exposure to heat cycles and transmission fluid degrades the screw’s surface, leading to seizure or stripping.

Technical Specifications

Compatibility

This cap screw is primarily designed for the ZF WG 150 Series, but it also fits select variants in the WG 180 and WG 200 families due to shared housing bolt patterns. It is a direct replacement for units equipped with the 0730365125: TYPE PLATE and the 0631311009: GROOVED STUD. Always verify thread pitch and length against your specific housing configuration before installation.

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