Overview
The ZF 0730.108.471 WASHER is an OEM genuine shim component engineered for precise axial clearance control within heavy-duty construction machinery transmissions. This hardened steel washer sits between the differential housing and the taper roller bearing assembly, maintaining critical end-play tolerances that prevent gear train misalignment. As a factory-specification part, SKU 0730.108.471 ensures the differential gears rotate without excessive friction or backlash, directly supporting torque distribution in ZF drivelines. When installed alongside a 5838109012: DIFFERENTIAL, this washer stabilizes the entire carrier assembly under high-load conditions.
Symptoms of Failure
- Transmission oil seepage from axle housing seals — A worn 0730.108.471 washer allows the differential carrier to shift, distorting seal contact surfaces and causing gradual fluid loss.
- Intermittent gear slipping under load — When this thrust washer loses its calibrated thickness, the 0750117075: TAPER ROLLER BEARING loses preload, resulting in momentary power loss during excavation or grading.
- Metallic grinding noise from differential area — Insufficient axial clearance causes the bevel gear set to contact the 5838300626: DIFFERENTIAL HOUSING, producing a distinct low-frequency growl during turns.
- Premature wear on differential side gears — A collapsed washer forces the 2093209023: DIFFERENTIAL to operate outside its designed mesh pattern, accelerating tooth surface fatigue.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.108.471 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Outer Diameter | 68.5 mm |
| Inner Diameter | 42.0 mm |
| Thickness | 2.50 mm (selective fit) |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.108.471 |
| Hardness | HRC 58-62 |
Compatibility
This genuine ZF washer is primarily specified for the WG180 and WG200 series powershift transmissions used in wheel loaders, dozers, and graders. It also fits select variants of the WG160 and WG240 models where the differential carrier uses a 42mm shaft journal. Always verify the existing washer thickness before ordering, as selective fitment tolerances vary by transmission build date. The 0730.108.471 directly interfaces with the differential pinion shaft and the inner race of the taper roller bearing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Torque distribution to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209023 | DIFFERENTIAL | Secondary differential assembly |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses gear set and bearings |
| 0631329088 | SPRING PIN | Locks differential pinion shaft |
| 5838300811 | THRUST WASHER | Axial load distribution for side gears |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 5838300633 | AXLE | Drives wheel hub assembly |
| 5838300753 | THRUST WASHER | Clearance control for pinion gears |
| 5838300818 | THRUST WASHER | Bearing preload adjustment |
Frequently Asked Questions
Q: Can I reuse the 0730.108.471 washer during a differential rebuild?
A: No. This washer is a single-use selective shim. Reusing it risks incorrect bearing preload, leading to premature failure of the 0750117075: TAPER ROLLER BEARING and differential gears.
Q: How do I measure the correct thickness for replacement?
A: Use a micrometer on the old washer at three points. If the thickness varies by more than 0.05 mm, the differential housing may be warped. Always measure the 5838300626: DIFFERENTIAL HOUSING bore depth to confirm the required shim size.
Q: Does this part fit ZF WG180 transmissions with serial numbers after 2015?
A: Yes, the 0730.108.471 is used in WG180 and WG200 transmissions built from 2010 onward. Verify your differential part number against 5838109012: DIFFERENTIAL compatibility for your specific unit.
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