Overview
The ZF 0730.100.584 WASHER is a precision-engineered OEM genuine component designed specifically for the WG 65 series transmission. This hardened steel washer functions as a critical load-spreading interface between the TRANSMISSION HOUSING and fastener assemblies, ensuring uniform clamping force distribution during high-torque operations. Located within the main gear train assembly, the SKU 0730.100.584 prevents galling between mating surfaces and maintains proper axial clearance. Its role is indispensable in preserving the structural integrity of the planetary gear set under extreme thermal and mechanical stress.
Symptoms of Failure
- Progressive oil seepage at housing joints: A worn 0730.100.584 washer allows micro-movement between components, breaking the seal created by the O-RING and leading to visible fluid trails around the transmission case.
- Audible metallic clicking during gear engagement: When the washer loses its original thickness, axial play develops, causing the HEXAGON SCREW to loosen and create intermittent contact noise.
- Vibration under load at highway speeds: Deformation of the washer disrupts the concentric alignment of the output shaft, transmitting harmonics through the driveline that intensify with RPM.
- Premature fastener fatigue: A collapsed washer forces the HEXAGON SCREW to bear uneven stress, often resulting in stripped threads or sheared bolt heads during routine maintenance.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.100.584 |
| Inner Diameter | 18.5 mm |
| Outer Diameter | 32.0 mm |
| Thickness | 2.5 mm |
| Material | Case-hardened carbon steel (DIN 17222) |
| Surface Finish | Zinc-plated, passivated |
| Hardness | HRC 45-50 |
| Weight | 12 grams |
| OEM Reference | ZF 0730.100.584 |
| Torque Spec | 85 Nm (when paired with HEXAGON SCREW) |
Compatibility
This washer is engineered for the ZF WG 65 series, but its dimensional profile also suits the WG180, WG200, and WG250 transmission families. It is commonly used in construction equipment, municipal trucks, and agricultural machinery where the WG65 gearbox is specified. Always verify clearance with the CYLINDRICAL PIN alignment bore before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101059 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011038 | HEXAGON SCREW | M10 fastener for housing retention |
| 0636011118 | HEXAGON SCREW | M12 fastener for bearing cap |
| 0636016015 | HEXAGON SCREW | M8 fastener for oil pan |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0634313118 | O-RING | Static seal for housing interface |
| 0636304019 | SCREW PLUG | Drain port closure |
| 0634801152 | SEALING RING | Copper crush washer for plug |
| 0732611049 | FILTER INSERT | Hydraulic fluid filtration element |
| 0634303718 | O-RING | Filter housing seal |
