Overview
The ZF 0636.115.275 CAP SCREW is a critical fastening component engineered for the WG 94 series transmission. This OEM genuine part secures the 4661101046: HOUSING assembly, ensuring precise alignment and clamping force within the gearbox. Without this cap screw, hydraulic pressure integrity and structural stability are compromised. The SKU 0636.115.275 is specifically designed to withstand high torque loads and thermal cycling, making it indispensable for heavy-duty industrial applications.
Symptoms of Failure
- Transmission fluid seepage around the housing joint: A worn or stripped cap screw fails to maintain seal pressure, leading to visible oil leaks near the 4661301125: HOUSING II interface.
- Gear engagement hesitation or slipping: Loose fasteners allow micro-movement of internal components, disrupting clutch pack alignment and causing delayed shifts.
- Unusual metallic rattling from the bell housing: A fractured cap screw can cause the 0631306174: CYLINDRICAL PIN to shift, generating audible vibration during operation.
- Intermittent loss of hydraulic pressure: Insufficient clamping force on the housing gasket leads to pressure drops, triggering warning codes on the 0769123894: TYPE PLATE identification.
Technical Specifications
| Parameter | Value |
|---|---|
| Thread Size | M10 x 1.5 |
| Overall Length | 45 mm |
| Head Type | Hexagon socket (Allen) |
| Material | Alloy steel, 10.9 grade |
| Surface Finish | Zinc-plated, yellow passivated |
| Weight | 0.035 kg |
| OEM Reference | 0636.115.275 |
| Torque Specification | 45 Nm + 90° angle |
Compatibility
This cap screw is a direct replacement for the WG 94 series, but its design also fits the WG180, WG200, and WG250 transmission models. It is commonly used in conjunction with the 0750100022: SCREW PLUG and 4660201008: SCREW PLUG for complete housing sealing. Always verify thread pitch compatibility with your specific transmission variant before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661101046 | HOUSING | Main gearbox casing |
| 4661301125 | HOUSING II | Secondary housing section |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing |
| 0769123894 | TYPE PLATE | Identification and rating plate |
| 0750100022 | SCREW PLUG | Oil drain port seal |
| 4660201008 | SCREW PLUG | Pressure test port plug |
| 0636100117 | SCREW PLUG | Vent port closure |
| 0501211384 | VALVE | Hydraulic control valve |
| 0732042156 | COMPRESSION SPRING | Valve return spring |
| 0768409154 | SCREW PLUG | Modulator port plug |
