Overview
The ZF 0636.100.416 HEXAGON SCREW is a critical fastening element engineered for the differential assembly in ZF WG100, WG130, and WG131 transmissions. This OEM genuine part secures the differential housing and crown wheel components, ensuring precise torque retention under high-load conditions. As a hexagon-headed bolt, it withstands extreme shear forces and thermal expansion within the gearbox. The SKU 0636.100.416 is specifically designed to maintain the structural integrity of the differential system, preventing axial movement of gears during operation. When paired with a 2098309011: CROWN WHEEL, this screw guarantees optimal alignment for power transfer.
Symptoms of Failure
- Oil leaks around differential housing: A loosened or fatigued hexagon screw compromises the seal between the 2098309010: DIFFERENTIAL HOUSING and the transmission casing, leading to visible fluid seepage.
- Gear slipping under load: Worn threads or stripped heads cause the screw to lose clamping force, resulting in intermittent slippage between the crown wheel and 2098109042: DIFFERENTIAL assembly.
- Metallic grinding noises: A broken or deformed hexagon screw allows the differential bevel gears to shift, producing a distinct grinding sound during turns or acceleration.
- Vibration at highway speeds: Insufficient bolt tension creates micro-movements in the 2099209001: DIFFERENTIAL unit, transmitting vibration through the driveline.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0636.100.416 |
| Head Type | Hexagon (ISO 4017) |
| Thread Size | M10 x 1.5 |
| Length | 40 mm |
| Material | Alloy Steel 10.9 Grade |
| Surface Treatment | Zinc-Nickel Plated |
| Weight | 0.035 kg |
| OEM Reference | ZF 0636.100.416 |
| Torque Spec | 65 Nm + 90° |
Compatibility
This hexagon screw is OEM-specified for ZF WG100, WG130, and WG131 transmission models. It is also compatible with select WG180 and WG200 variants that share the same differential housing bolt pattern. Always verify thread pitch and length against your existing fastener before installation. The 0636.100.416 screw is commonly used alongside the 2098309009: DIFFERENTIAL HOUSING and 2098309031: AXLE BEVEL GEAR in heavy-duty applications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098109042 | DIFFERENTIAL | Distributes torque between axles |
| 2098309011 | CROWN WHEEL | Transfers rotational force from pinion |
| 2099209001 | DIFFERENTIAL | Houses planetary gears |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses differential assembly |
| 2098309009 | DIFFERENTIAL HOUSING | Alternative housing variant |
| 2098309031 | AXLE BEVEL GEAR | Drives axle shafts |
| 2098309030 | AXLE BEVEL GEAR | Matched set for differential |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Enables speed differentiation |
| 12883200682 | THRUST WASHER | Reduces axial friction |
| 0635332059 | BALL BEARING | Supports rotating shafts |
