Overview
The ZF 0630.003.028 WASHER is a precision-engineered OEM genuine component designed for the WG 65 Series transmission. This hardened steel washer functions as a critical load-spreading interface between fasteners and transmission housing surfaces, ensuring proper torque retention and preventing galling. As part of the WG65 assembly, the 0630.003.028 washer sits directly beneath the 4616105413: OUTPUT and the 4616203017: OUTPUT FLANGE, distributing clamping force evenly across the 4616101117: TRANSMISSION HOUSING interface. Each washer is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged units in heavy-duty industrial applications.
Symptoms of Failure
- Oil seepage around output flange bolts: A worn 0630.003.028 washer can no longer maintain proper sealing pressure, leading to gradual transmission fluid leaks at the output shaft area.
- Torque loss on hexagon fasteners: When the washer deforms or cracks, the 0636011038: HEXAGON SCREW may loosen over time, causing vibration and potential gear misalignment.
- Metallic debris in transmission oil: A fractured washer generates fine metal particles that contaminate the lubricant, accelerating wear on bearings and gears.
- Abnormal noise during load shifts: Insufficient clamping from a failed washer allows the output flange to micro-move, producing a distinct clicking or knocking sound under torque.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0630.003.028 |
| Material | Hardened Carbon Steel (DIN 17222) |
| Inner Diameter | 28.0 mm |
| Outer Diameter | 45.0 mm |
| Thickness | 3.5 mm |
| Weight | 0.035 kg |
| OEM Reference | ZF 0630.003.028 |
| Surface Finish | Zinc-plated (ISO 4042) |
Compatibility
This washer is specifically engineered for the ZF WG 65 Series transmission family. Based on its design and dimensions, the 0630.003.028 is also compatible with the following ZF models: WG180, WG200, WG210, and WG250. It is commonly used in conjunction with the 0636016015: HEXAGON SCREW and the 0631306085: CYLINDRICAL PIN during output flange installation. For complete sealing integrity, always pair this washer with the 0634313118: O-RING and the 0732611049: FILTER INSERT during transmission rebuilds.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | OUTPUT | Transfers torque from transmission to driveline |
| 4616203017 | OUTPUT FLANGE | Connects output shaft to driveshaft |
| 4616101117 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 0636011038 | HEXAGON SCREW | Secures output flange to shaft |
| 0636016015 | HEXAGON SCREW | Fastener for housing cover |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0634313118 | O-RING | Seals output flange to housing |
| 0732611049 | FILTER INSERT | Traps debris in oil circuit |
| 0634303718 | O-RING | Seals filter housing |
| 0636610082 | STUD | Threaded rod for housing mounting |
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