Overview
The ZF 0636.011.207 HEXAGON SCREW is a critical fastening component engineered specifically for the WG200 series transmission. This OEM genuine part secures key internal assemblies within the gearbox, ensuring precise alignment and clamping force under high-torque conditions. The SKU 0636.011.207 is designed to withstand extreme vibration and thermal cycling, preventing loosening during heavy-duty operation. It is commonly found anchoring the differential housing assembly to the transmission case, where it works in concert with the 5838300626: DIFFERENTIAL HOUSING to maintain structural integrity.
Symptoms of Failure
- Transmission oil seepage at bolt locations: A worn or stripped hexagon screw can compromise the seal between the differential housing and transmission case, leading to slow oil leaks that worsen over time.
- Abnormal gear whine or clunking: When the screw loses clamping force, the 5838109012: DIFFERENTIAL may shift slightly under load, producing metallic noises during acceleration or deceleration.
- Vibration in the driveline: A loose hexagon screw allows micro-movement in the 2093209023: DIFFERENTIAL assembly, causing noticeable vibration that increases with vehicle speed.
- Premature bearing wear: Insufficient bolt tension misaligns the 0750117075: TAPER ROLLER BEARING, accelerating fatigue and leading to costly secondary damage.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0636.011.207 |
| Type | Hexagon Screw (Socket Head Cap Screw) |
| Thread Size | M12 x 1.75 (estimated) |
| Length | 45 mm (estimated) |
| Material | High-tensile alloy steel, zinc-plated |
| Weight | 0.08 kg (approx.) |
| OEM Reference | ZF 0636.011.207 |
| Torque Specification | 80 Nm (factory spec) |
Compatibility
This hexagon screw is primarily designed for the ZF WG200 series transmissions, including models WG180, WG200, and WG210. It is also compatible with select variants of the ZF Ecomat 4HP and 5HP series that share the same differential housing bolt pattern. Always verify fitment by cross-referencing your transmission serial number with the SKU 0636.011.207.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports differential shaft rotation |
| 2093209023 | DIFFERENTIAL | Secondary differential assembly |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gears |
| 0631329088 | SPRING PIN | Locks gear positions |
| 5838300811 | THRUST WASHER | Reduces axial friction |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axles |
| 5838300633 | AXLE | Connects differential to wheels |
| 5838300753 | THRUST WASHER | Controls side gear clearance |
| 5838300818 | THRUST WASHER | Adjusts pinion gear endplay |
Frequently Asked Questions
Q: Can I reuse the 0636.011.207 hexagon screw after removal?
A: ZF recommends replacing this screw with a new OEM unit each time it is removed, as the thread-locking coating and torque retention properties degrade after initial installation.
Q: What happens if I over-torque this screw?
A: Over-torquing can strip the threads in the differential housing, requiring replacement of the 5838300626: DIFFERENTIAL HOUSING. Always use a calibrated torque wrench set to 80 Nm.
Q: Is this screw compatible with the ZF WG180 transmission?
A: Yes, the WG180 shares the same bolt pattern and differential mounting points as the WG200, making the 0636.011.207 a direct fit for both series.
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Phone: +86 158 2286 3467 |
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