Overview
The ZF 0636.010.476 HEXAGON SCREW is a critical fastening component engineered for the WG92 and WG98 transmission series. This OEM genuine part secures the 4950101004: HOUSING assembly to the main gear casing, ensuring precise alignment under high-torque loads. Designed to withstand extreme vibration and thermal cycling, this hexagon screw maintains clamping force integrity within the transmission’s internal structure. The SKU 0636.010.476 is manufactured to ZF’s exacting tolerances, preventing loosening during heavy-duty operation.
Symptoms of Failure
- Oil seepage around the housing joint: When the 0636.010.476 hexagon screw loses preload, transmission fluid can escape past the 0734309932: SHAFT SEAL, leading to visible wet spots on the casing.
- Abnormal gear engagement noise: A loose hexagon screw allows the 4950301018: HOUSING I to shift slightly, causing clunking or grinding sounds during gear changes under load.
- Progressive vibration at highway speeds: Worn threads or fatigue in this fastener can cause the 4660101023: TRANSMISSION HOUSING to resonate, producing a low-frequency hum that intensifies with RPM.
- Reduced hydraulic pressure: A compromised hexagon screw can misalign internal oil galleries, resulting in sluggish shifting and delayed clutch pack engagement.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0636.010.476 |
| Type | Hexagon Screw (DIN 933) |
| Thread Size | M10 x 1.5 |
| Length | 35 mm |
| Head Width | 17 mm (hex) |
| Material | Alloy Steel, 10.9 Grade |
| Surface Finish | Zinc-Nickel Plated |
| Weight | 0.04 kg (0.09 lbs) |
| OEM Reference | ZF 0636.010.476 |
| Torque Spec | 45 Nm ± 5 Nm |
Compatibility
This hexagon screw is specifically validated for ZF WG92 and WG98 series transmissions, including models such as WG180, WG200, and WG210. It is also used in select WG150 variants where the housing attachment points match the M10 thread pattern. Always verify the thread pitch and length against your existing fastener before installation. For complete housing assemblies, consider the 4660301058: HOUSING or the 0631306174: CYLINDRICAL PIN for alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4950101004 | HOUSING | Main structural enclosure for gear set |
| 4950301018 | HOUSING I | Intermediate casing section |
| 0734309932 | SHAFT SEAL | Prevents fluid leakage at rotating shafts |
| 4660101023 | TRANSMISSION HOUSING | Outer casing assembly |
| 4660301058 | HOUSING | Secondary housing component |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0750100022 | SCREW PLUG | Seals oil passages |
| 4660301009 | BRACKET | Mounting support for accessories |
| 4660221039 | TUBE | Oil delivery conduit |
| 0636103274 | CAP SCREW | High-strength fastener for cover plates |
