Overview
The ZF 0730.002.747 WASHER is a precision-engineered OEM genuine component designed to maintain critical axial clearance and distribute clamping loads within ZF heavy-duty transmissions. This hardened steel washer sits between the transmission housing and rotating shaft assemblies, preventing metal-to-metal contact and ensuring proper preload on bearings. As a load-bearing shim, the SKU 0730.002.747 directly influences gear alignment and torque transfer efficiency in construction machinery drivetrains. When installed alongside the 2094101012: TRANSMISSION HOUSING and 2094301036: HOUSING, this washer forms a critical sealing and spacing interface that prevents internal component migration under high-stress operating conditions.
Symptoms of Failure
- Transmission oil leaks at housing mating surfaces — A worn 0730.002.747 washer reduces clamping force, allowing fluid to escape between the 2094298057: HOUSING and adjacent covers.
- Gear slipping under load — Washer thickness loss alters shaft endplay, causing misalignment and intermittent power loss during excavation or lifting operations.
- Abnormal bearing noise during cold starts — Degraded washer material fails to maintain preload, resulting in audible rumbling or whining from the transmission sump area.
- Premature wear on the 2094301071: COVER mounting flange — Insufficient washer support creates localized stress points that accelerate flange deformation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.002.747 |
| Material | Hardened carbon steel (C45E, 40-45 HRC) |
| Inner Diameter | 18.0 mm |
| Outer Diameter | 32.0 mm |
| Thickness | 2.5 mm |
| Weight | 12 grams |
| OEM Reference | ZF 0730.002.747 |
| Surface Finish | Zinc-plated (ISO 2081) |
Compatibility
This washer is engineered for ZF WG-series powershift transmissions commonly used in construction machinery. Compatible models include WG180, WG200, WG210, and WG310 series. It also applies to ZF 4WG-200 and 6WG-310 variants found in wheel loaders, graders, and telescopic handlers. Always verify fitment by cross-referencing the 0730.002.747 with your transmission’s parts manual, as housing configurations may vary between OEM equipment manufacturers.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 0750111371 | SHAFT SEAL | Prevents fluid leakage at rotating shaft exits |
| 0634303085 | O-RING | Seals static joints between housing sections |
| 2094301030 | GASKET | Provides leak-proof interface on cover plates |
| 0631306670 | CYLINDRICAL PIN | Aligns housing halves during assembly |
| 0636011356 | HEXAGON SCREW | Secures housing and cover components |
| 4475280060 | SCREW PLUG | Closes hydraulic ports and inspection holes |
