Overview
The ZF 0730.002.087 THRUST WASHER is a precision-engineered axial bearing component designed to manage end-play and absorb thrust loads within the planetary gear sets of the WG 65 transmission series. This OEM genuine part sits between rotating shafts and stationary housings, ensuring proper gear alignment and preventing metal-on-metal contact under high torque conditions. The SKU 0730.002.087 is manufactured to ZF’s exacting tolerances, providing a durable wear surface that maintains hydraulic pressure integrity across the clutch packs. When paired with a properly torqued 0636011038 HEXAGON SCREW and a sealed 4616101094 TRANSMISSION HOUSING, this thrust washer becomes a critical element in the drivetrain’s load distribution system.
Symptoms of Failure
- Intermittent gear slipping under load: A worn 0730.002.087 thrust washer allows excessive axial play, causing clutch packs to lose clamping force during acceleration or hill climbs.
- Low-frequency humming or grinding from the transmission sump: As the washer surface degrades, hardened steel particles contaminate the oil, creating audible bearing distress that worsens with RPM.
- Erratic shift timing and harsh engagement: Increased end-play disrupts the balance of the valve body, leading to delayed or abrupt gear changes, particularly in the 2-3 shift range.
- Visible metallic debris on the drain plug magnet: Flaking from the thrust washer surface is a common indicator of imminent failure, often accompanied by a drop in line pressure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.002.087 |
| Material | Phosphor bronze with PTFE overlay |
| Outer Diameter | 72.0 mm |
| Inner Diameter | 58.5 mm |
| Thickness | 2.5 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.002.087 |
| Hardness | HRB 85-95 |
Compatibility
This thrust washer is specifically engineered for the ZF WG 65 series, but its design parameters also suit the WG 80, WG 120, and WG 150 transmission models used in medium-duty trucks and off-highway equipment. The 0730.002.087 interfaces directly with the 4616105415 OUTPUT shaft and the 4616303144 OUTPUT FLANGE, requiring precise alignment during reassembly. Always verify compatibility with your specific transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105415 | OUTPUT | Transfers torque from planetary gearset to driveline |
| 4616303144 | OUTPUT FLANGE | Connects output shaft to universal joint |
| 4616101094 | TRANSMISSION HOUSING | Encloses gear train and supports bearing bores |
| 0636011038 | HEXAGON SCREW | Secures housing cover with M10 thread |
| 0636011118 | HEXAGON SCREW | Fastens output flange to shaft |
| 0636016015 | HEXAGON SCREW | Mounts valve body to housing |
| 0631306085 | CYLINDRICAL PIN | Aligns clutch drum during assembly |
| 0634313118 | O-RING | Seals oil passage between housing sections |
| 0732611049 | FILTER INSERT | Captures debris from thrust washer wear |
| 0634303718 | O-RING | Prevents external leakage at output flange |
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