ZF 0636.100.048 STUD | OEM Genuine Part

Overview

The ZF 0636.100.048 STUD is a precision-engineered locating and fastening component used within the clutch pack and housing assembly of heavy-duty ZF powershift transmissions. This OEM genuine part ensures correct axial alignment of the hydraulic control components, preventing lateral movement under high torque loads. The SKU 0636.100.048 is a hardened steel stud designed to withstand the extreme shear forces and vibration common in construction machinery applications. It functions as a fixed pivot point for linkage assemblies and as a positional guide for the 4143101009: HOUSING and 4143301025: HOUSING sections, ensuring a secure interface between the transmission casing and internal valve bodies.

Symptoms of Failure

When the ZF 0636.100.048 STUD wears or fractures, operators often report “transmission housing misalignment causing gear engagement delay”. A second common failure symptom is “intermittent oil seepage around the stud bore”, as the compromised stud allows the 0634313603: O-RING to lose its compression seal. Technicians may also detect “abnormal metallic rattling from the transmission bell housing” during idle, indicating the stud has loosened. Finally, a worn stud frequently leads to “hard shifting or clutch slip under load”, as the 4475280018: SCREW PLUG cannot maintain proper back-pressure without the stud’s structural support.

Technical Specifications

Compatibility

This stud is a standard fitment in ZF’s WG180, WG200, and WG210 series powershift transmissions commonly used in wheel loaders, dozers, and graders. It also appears in the 4WG-200 and 6WG-200 variants where it secures the valve housing to the main case. For rebuilds, always pair this stud with a new 0634313591: O-RING and 0636101068: CAP SCREW to guarantee proper torque retention. The stud is not interchangeable with metric bolts due to its unique shoulder profile designed for the 4143221013: THROTTLE VALVE mounting bracket.

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