Overview
The ZF 0730.002.744 WASHER is a precision-engineered OEM genuine component designed to maintain critical axial clearance and distribute clamping loads within ZF heavy-duty construction machinery transmissions. This hardened steel washer sits between the transmission housing and rotating shaft assemblies, preventing metal-to-metal contact and ensuring consistent preload on bearings. As part number 0730.002.744, it is essential for preserving the structural integrity of the gear train. This washer is often replaced during a full rebuild alongside the 2094101012: TRANSMISSION HOUSING and the 2094301036: HOUSING to guarantee proper alignment and load distribution.
Symptoms of Failure
- Transmission oil leaks at housing mating surfaces: A worn or deformed 0730.002.744 washer can cause uneven clamping, leading to gaps that allow hydraulic fluid to escape. This is a common long-tail search query for “ZF transmission washer oil leak repair.”
- Gear slipping under load in construction equipment: When the washer loses its thickness, axial play increases, causing gears to disengage momentarily during heavy digging or lifting operations.
- Abnormal bearing noise or vibration: A collapsed washer fails to maintain bearing preload, resulting in rumbling sounds from the transmission case, especially in WG180 and WG200 series units.
- Hard shifting or delayed engagement: Insufficient washer height alters the position of the 2094298057: HOUSING, which can interfere with clutch pack clearance and cause sluggish gear changes.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0730.002.744 |
| Material | Hardened Carbon Steel (C45E) |
| Inner Diameter | 42.0 mm |
| Outer Diameter | 68.0 mm |
| Thickness | 2.5 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.002.744 |
| Surface Finish | Ground, phosphate coated |
Compatibility
This genuine ZF washer is primarily used in the following transmission models commonly found in construction machinery such as wheel loaders, graders, and dump trucks:
- ZF WG180
- ZF WG200
- ZF WG210
- ZF 4WG-200
- ZF 6WG-200
During installation, always inspect the mating surfaces of the 2094301071: COVER for wear, as a damaged cover can accelerate washer failure.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101012 | TRANSMISSION HOUSING | Main structural case for gear assembly |
| 2094301036 | HOUSING | Intermediate support housing for shafts |
| 2094298057 | HOUSING | Rear housing for output shaft |
| 2094301071 | COVER | Seals the transmission housing end |
| 0750111371 | SHAFT SEAL | Prevents oil leakage at rotating shafts |
| 0634303085 | O-RING | Static seal between housing sections |
| 2094301030 | GASKET | Mating surface seal for covers |
| 0631306670 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636011356 | HEXAGON SCREW | Fastener for housing attachment |
| 4475280060 | SCREW PLUG | Seals oil passages in housing |
