Overview
This genuine ZF 0730.108.557 WASHER is a precision-engineered component designed to maintain correct axial clearance and load distribution within the transmission assembly. Positioned between rotating shafts and stationary housings, this washer prevents metal-to-metal contact and ensures consistent oil film thickness under high torque conditions. The SKU 0730.108.557 is a factory-specified part for heavy-duty construction machinery transmissions, where even minor dimensional deviations can lead to premature gear wear or hydraulic pressure loss. When installed alongside a 2094104412: MAIN SHAFT or 2094304054: MAIN SHAFT, this washer guarantees the precise end-play required for smooth power transfer in demanding off-road applications.
Symptoms of Failure
- Transmission oil seepage at shaft seals – A worn 0730.108.557 washer allows excessive axial movement, distorting seal lips and causing slow fluid loss around the output flange.
- Intermittent gear engagement difficulty – When the washer thickness degrades, the 2094106010: SHIFT SYSTEM cannot fully lock into gear, leading to grinding noises during directional changes.
- Vibration during low-speed maneuvering – A collapsed washer creates uneven loading on the 2094206001: GEARSHIFT SHAFT, transmitting harmonics through the chassis that worsen under load.
- Metallic debris in transmission fluid – Surface spalling of the washer releases fine steel particles that clog valve bodies and accelerate bearing failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.108.557 |
| Material | Case-hardened steel (DIN 1.3505 equivalent) |
| Outer Diameter | 68.0 mm |
| Inner Diameter | 52.5 mm |
| Thickness | 2.5 mm |
| Weight | 0.042 kg |
| OEM Reference | ZF 0730.108.557 |
| Surface Finish | Ground, phosphate-coated |
Compatibility
This washer is engineered for ZF WG series powershift transmissions commonly used in wheel loaders, graders, and excavators. It fits the following models: WG180, WG200, WG210, and WG240. The 0730.108.557 also appears in certain ZF 4WG-200 and 6WG-200 variants where it serves as a thrust washer for the main shaft cluster. Always verify stack height when replacing this part in conjunction with a 2094306019: WASHER to maintain factory tolerances.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094104412 | MAIN SHAFT | Transfers torque from engine to gear cluster |
| 2094304054 | MAIN SHAFT | Alternative spline configuration for high-torque models |
| 2094106010 | SHIFT SYSTEM | Hydraulic actuator for gear selection |
| 2094206001 | GEARSHIFT SHAFT | Mechanical link between shift fork and clutch pack |
| 2094306053 | GEARSHIFT SHAFT | Longer variant for multi-speed transmissions |
| 0630513070 | SNAP RING | Secures bearing on output shaft |
| 2094306019 | WASHER | Thicker variant for stack height adjustment |
| 0732040444 | COMPRESSION SPRING | Returns shift rail to neutral position |
| 0732040728 | COMPRESSION SPRING | Higher rate spring for heavy-duty clutch packs |
| 2093206001 | BUSH | Wear sleeve for gearshift shaft pivot point |
Frequently Asked Questions
Q: Can I reuse the 0730.108.557 washer during a transmission rebuild?
A: No. This washer is a single-use component because its case-hardened surface work-hardens during initial torque cycles. Reusing it risks axial play beyond ZF’s 0.05 mm tolerance, leading to shift fork misalignment.
Q: How do I confirm the correct orientation for this washer?
A: The chamfered inner edge must face the rotating shaft. Installing it reversed will reduce oil flow to the 2094106010: SHIFT SYSTEM and cause premature scoring on the main shaft.
Q: Does this washer require a specific torque sequence for the retaining nut?
A: Yes. Tighten the main shaft nut to 280 N·m, then rotate the shaft 90 degrees while checking end-play with a dial indicator. If clearance exceeds 0.08 mm, substitute a 2094306019: WASHER for fine adjustment.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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