Overview
The ZF 0730.007.801 WASHER is a precision-engineered OEM genuine component specifically designed for the WG 65 Series transmission. This hardened steel washer functions as a critical load-spreading interface between fasteners and the transmission housing, ensuring even distribution of clamping forces during high-torque operation. Positioned within the main gear train assembly, the SKU 0730.007.801 prevents galling and maintains proper axial clearance between rotating elements. As a factory-specified part, it guarantees exact fitment and metallurgical consistency required for heavy-duty industrial applications.
Symptoms of Failure
- Transmission oil seepage at bolt interfaces: A worn or crushed 0730.007.801 washer can compromise the seal between the TRANSMISSION HOUSING and mating components, leading to gradual fluid loss.
- Audible gear rattle under load: Deterioration of this washer increases axial play, causing gear teeth to impact irregularly during power transfer.
- Torque loss on critical fasteners: When the washer deforms, the HEXAGON SCREW clamping force diminishes, allowing bolts to loosen over time.
- Vibration in the driveline: Uneven washer compression creates micro-movements between the HOUSING sections, transmitting noticeable vibration through the transmission casing.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0730.007.801 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Outer Diameter | 30.0 mm |
| Inner Diameter | 14.2 mm |
| Thickness | 3.0 mm |
| Hardness | HRC 45-50 |
| Weight | 12 grams |
| OEM Reference | ZF 0730.007.801 |
Compatibility
This washer is engineered for the ZF WG 65 Series, but its dimensional profile also suits several related heavy-duty transmissions. Compatible models include the WG180, WG200, WG210, and WG250 series where similar clamping requirements exist. It is commonly used in conjunction with the HOUSING assembly to maintain structural integrity under extreme loads. Always verify fitment against your specific transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101111 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 0636011118 | HEXAGON SCREW | Fastener for housing sections |
| 4616301304 | HOUSING | Intermediate housing component |
| 4616301309 | HOUSING | Rear housing section |
| 0636011038 | HEXAGON SCREW | M10 bolt for flange connections |
| 0636016015 | HEXAGON SCREW | M12 high-strength fastener |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing |
| 0634313118 | O-RING | Hydraulic seal for oil passages |
| 0636304019 | SCREW PLUG | Oil drain port closure |
| 0634801152 | SEALING RING | Copper crush washer for plugs |
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