Overview
The ZF 0636.016.416 HEXAGON SCREW is a critical fastening component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part secures the differential assembly within the housing, ensuring precise alignment and clamping force under high-torque conditions. As a hexagon-headed fastener, it withstands extreme vibration and thermal cycling, preventing loosening during operation. The SKU 0636.016.416 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged screws in heavy-duty driveline systems. When installed alongside the 5838109012: DIFFERENTIAL, this screw maintains the structural integrity of the gear train.
Symptoms of Failure
- Transmission oil leaks around the housing: A degraded hexagon screw can compromise the seal between the differential housing and the main case, leading to visible fluid seepage. This is a common symptom when the 0636.016.416 loses its clamping torque.
- Gear slipping under load: If the screw loosens, the 0750117075: TAPER ROLLER BEARING may shift out of alignment, causing intermittent gear engagement and power loss during acceleration.
- Abnormal whining or knocking noises: A loose hexagon screw allows the 2093209023: DIFFERENTIAL to vibrate against the housing, producing metallic sounds that intensify with speed.
- Increased backlash in the driveline: Worn threads on the screw create excessive play between the differential and the 5838300626: DIFFERENTIAL HOUSING, resulting in a clunking sensation when shifting gears.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 0636.016.416 |
| Type | Hexagon Screw (Bolt) |
| Thread Size | M16 x 1.5 (estimated) |
| Length | 45 mm (estimated) |
| Head Type | Hexagon, 24 mm socket |
| Material | High-tensile steel, zinc-plated |
| Weight | 0.08 kg (approx.) |
| OEM Reference | ZF 0636.016.416 |
| Torque Specification | 120 Nm (recommended) |
Compatibility
This hexagon screw is specifically designed for ZF WG-series transmissions. It is a direct fit for the following models: WG100, WG130, and WG131. Additionally, it may be compatible with WG180 and WG200 series when used in the differential mounting location, though verification of thread pitch and length is advised. The 0636.016.416 is not interchangeable with standard metric bolts due to its unique shank design and hardness rating.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential rotation |
| 2093209023 | DIFFERENTIAL | Secondary differential assembly |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gears |
| 0631329088 | SPRING PIN | Secures gear alignment |
| 5838300811 | THRUST WASHER | Reduces axial friction |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axles |
| 5838300633 | AXLE | Drives wheel hubs |
| 5838300753 | THRUST WASHER | Controls gear end-play |
| 5838300818 | THRUST WASHER | Prevents lateral movement |
Frequently Asked Questions
Q: Can I reuse the 0636.016.416 hexagon screw after removal?
A: ZF recommends replacing this screw with a new OEM part whenever it is removed, as the thread-locking coating degrades after initial torque application. Reuse may lead to loosening and subsequent failure.
Q: Does this screw require thread locker during installation?
A: No. The 0636.016.416 is pre-coated with a micro-encapsulated adhesive that activates upon tightening. Applying additional thread locker can alter the clamping force and is not advised.
Q: Is the 0636.016.416 compatible with the WG200 transmission?
A: While the thread pitch matches, the shank length may differ. Always cross-reference your existing screw length before ordering. For WG200 applications, verify with your parts manual.
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Phone: +86 158 2286 3467 |
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