Overview
The ZF 0636.011.326 TORNILLO HEXAGONAL para WG260 is a critical OEM hexagonal bolt engineered for secure fastening within the differential housing assembly of ZF WG series transmissions. This genuine original equipment part, identified by SKU 0636.011.326, anchors the differential carrier to the housing, ensuring precise alignment of internal gear sets under high torque loads. It is commonly found in construction machinery transmissions where vibration resistance and structural integrity are paramount. When servicing the differential unit, this bolt works in concert with components such as the 2095109020: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING to maintain rotational stability.
Symptoms of Failure
- Transmission oil seepage around the housing bolts: A loose or fatigued 0636.011.326 bolt can compromise the seal between the differential housing and cover, leading to gradual fluid loss.
- Abnormal gear whine or clunking during load shifts: Insufficient clamping force from a worn hexagonal bolt allows micro-movement of the 2095209037: DIFFERENTIAL assembly, generating audible noise under acceleration.
- Vibration in the driveline at low speeds: When this fastener fails to maintain proper preload, the 2095309059: DIFF.HOUSING can shift, causing noticeable shudder during operation.
- Difficulty engaging gears or slipping under load: A compromised bolt connection may allow the differential carrier to misalign, disrupting gear mesh patterns and reducing torque transfer efficiency.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0636.011.326 |
| Type | Hexagonal Bolt (TORNILLO HEXAGONAL) |
| Thread Size | M16 x 2.0 (estimated) |
| Length | 55 mm (estimated) |
| Material | High-tensile alloy steel, zinc-plated |
| Weight | 0.12 kg (estimated) |
| OEM Reference | ZF 0636.011.326 |
| Grade | 10.9 (estimated) |
Compatibility
This OEM hexagonal bolt is designed for use in ZF WG series transmissions, specifically the WG180, WG200, WG220, and WG260 models. It is a direct replacement for the factory-installed fastener in the differential housing assembly. The part is also compatible with construction machinery drivelines that utilize these ZF transmissions, including wheel loaders, graders, and dump trucks. Always verify the thread pitch and length against your existing bolt before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2095109020 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2095209037 | DIFFERENTIAL | Secondary differential unit for multi-axle systems |
| 2095309059 | DIFF.HOUSING | Encloses differential gear set |
| 0631329086 | SPRING PIN | Secures alignment of internal components |
| 0730300820 | THRUST WASHER | Reduces axial friction in gear stack |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2095309081 | DIFFERENTIAL AXLE | Connects differential to wheel hubs |
| 5838300811 | THRUST WASHER | Provides wear surface for gear thrust loads |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Drives differential rotation |
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