Overview
The ZF 0730.001.330 WASHER is a precision-engineered OEM genuine component designed specifically for the WG 250 series transmission. This hardened steel washer functions as a critical load-spreading interface between fasteners and the transmission housing assembly, ensuring proper torque distribution and preventing surface deformation under high-stress operational loads. Positioned internally within the gearbox casing, the SKU 0730.001.330 works in direct conjunction with the TRANSMISSION HOUSING and the HOUSING to maintain structural integrity during heavy-duty industrial applications.
Symptoms of Failure
- Oil seepage around fastener points: A worn or crushed 0730.001.330 washer can no longer maintain a proper seal, leading to gradual transmission fluid leaks at bolted interfaces.
- Audible rattling or loosening of bolts: When the washer loses its spring tension or flattens, fasteners such as the HEXAGON SCREW can vibrate loose, causing metallic noise during gear engagement.
- Uneven torque readings during maintenance: Technicians may notice that specified torque values cannot be achieved consistently, indicating the washer has exceeded its elastic limit.
- Gear engagement hesitation: In advanced cases, a collapsed washer alters the clamping force on the COVER, allowing micro-movement that disrupts shift timing.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 0730.001.330 |
| Inner Diameter (nominal) | 14.2 mm |
| Outer Diameter (nominal) | 28.0 mm |
| Thickness | 3.5 mm |
| Material | Hardened Spring Steel (DIN 17222) |
| Surface Treatment | Zinc-Nickel Plated (Corrosion Resistant) |
| Weight | 12 g |
| OEM Reference | ZF 0730.001.330 |
| Hardness Rating | 40-48 HRC |
Compatibility
This OEM washer is primarily engineered for the ZF WG 250 series transmission, but its dimensional profile also suits the WG 180 and WG 200 models where similar fastener patterns exist. It is a direct replacement for the original equipment washer in all WG-series gearboxes produced after 2010. Always verify fitment by cross-referencing the part number against your transmission’s service manual, particularly when used alongside the TRANSMISSION HOUSING assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101028 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4646301095 | HOUSING | Secondary housing for clutch pack |
| 4646301087 | COVER | Sealing cover for access port |
| 0636015304 | HEXAGON SCREW | Fastener for housing retention |
| 0636101828 | CAP SCREW | High-tensile bolt for cover |
| 4646301102 | COVER SHEET | Thin gasket plate for sealing |
| 4646301098 | COVER SHEET | Alternate thickness cover plate |
| 0730365125 | TYPE PLATE | Identification plate for transmission |
| 0631311009 | GROOVED STUD | Alignment stud for housing |
| 0636101193 | CAP SCREW | M10 bolt for cover attachment |
