Overview
The ZF 0730.108.380 THRUST WASHER is a precision-engineered OEM genuine component designed to manage axial loads and maintain critical clearances within the planetary gear sets of heavy-duty ZF transmissions. Positioned between rotating and stationary elements, this washer prevents metal-to-metal contact, ensuring smooth power flow and extending the service life of the gear train. The SKU 0730.108.380 is specifically manufactured to OEM tolerances, making it a direct replacement for worn units in construction machinery transmissions. When rebuilding a final drive or differential assembly, this thrust washer works in concert with components like the 5838109007: DIFFERENTIAL to maintain proper gear mesh and load distribution.
Symptoms of Failure
- Excessive axial play in the gear cluster: A worn 0730.108.380 allows the gear stack to shift, causing a noticeable clunking sound during direction changes or under load.
- Metallic debris in transmission fluid: As the hardened surface wears away, fine steel particles contaminate the oil, often visible during routine drain intervals.
- Intermittent gear slipping under heavy load: Loss of thrust clearance reduces clamping force on clutch packs, leading to momentary power loss when excavating or lifting.
- Overheating in the planetary section: Increased friction from a collapsed washer generates localized heat, which may trigger thermal warnings on the machine’s dashboard.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0730.108.380 |
| Material | Hardened Steel with Phosphate Coating |
| Inner Diameter | 108 mm |
| Outer Diameter | 145 mm |
| Thickness | 3.80 mm |
| Weight | 0.24 kg |
| OEM Reference | ZF 0730.108.380 |
| Surface Hardness | HRC 58-62 |
Compatibility
This thrust washer is primarily used in ZF WG series powershift transmissions, including the WG180, WG200, and WG211 models commonly found in wheel loaders, graders, and telehandlers. It also appears in certain ErgoPower and Ecolife off-highway variants. For a complete rebuild, pair this washer with the 0750117075: TAPER ROLLER BEARING to support radial loads, and verify the condition of the 2095209019: DIFFERENTIAL assembly to ensure proper end-play. Additionally, secure the assembly with a new 0631329086: SPRING PIN to prevent fastener loosening during operation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial shaft loads |
| 2095209019 | DIFFERENTIAL | Provides final gear reduction |
| 0631329086 | SPRING PIN | Locks shafts and gears in position |
| 5838300817 | THRUST WASHER | Alternate axial clearance shim |
| 5838300682 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Thicker variant for wear compensation |
| 5841302064 | THRUST WASHER | High-load planetary washer |
| 5838300137 | OUTER CLUTCH DISK | Steel friction plate for clutch packs |
| 5838300138 | INNER CLUTCH DISK | Friction-lined clutch plate |
