Overview
The ZF 0730.110.396 WASHER is a precision-engineered OEM genuine component designed to maintain critical axial clearances within heavy-duty construction machinery transmissions. This hardened steel washer sits between rotating gear assemblies and housing surfaces, acting as a load-spreading interface that prevents metal-on-metal contact. Specifically positioned in the differential and final drive sections of ZF power shift transmissions, the SKU 0730.110.396 ensures consistent clamping force and oil film retention under extreme torque loads. Without this washer, gear alignment shifts, leading to accelerated wear on adjacent components like the 5838109012: DIFFERENTIAL and 0750117075: TAPER ROLLER BEARING.
Symptoms of Failure
- Transmission oil seepage from axle housing seals – When the washer thins or cracks, the differential housing shifts, breaking seal contact. This causes slow, persistent oil leaks around the 5838300626: DIFFERENTIAL HOUSING.
- Intermittent gear slipping under load – A worn washer reduces preload on the 2093209023: DIFFERENTIAL assembly, allowing gears to momentarily disengage during excavation or lifting operations.
- Metallic grinding noise from transmission sump – As the washer disintegrates, steel particles contaminate the oil, causing audible grinding when shifting between forward and reverse gears.
- Increased end-play in axle shafts – Excessive axial movement (over 0.5 mm) indicates the washer has compressed beyond its service limit, risking catastrophic differential failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.110.396 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Outer Diameter | 72.0 mm |
| Inner Diameter | 42.5 mm |
| Thickness | 2.5 mm |
| Hardness | 58-62 HRC |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.110.396 |
Compatibility
This washer is engineered for ZF WG series powershift transmissions commonly used in wheel loaders, dozers, and telehandlers. It directly fits the following models: WG180, WG200, WG210, and WG250. The part also appears in certain ZF 4WG-200 and 6WG-200 variants where it functions as a differential side gear thrust washer. Always verify axle housing clearance before installation, as stacking multiple washers is not permitted.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on pinion shaft |
| 2093209023 | DIFFERENTIAL | Rear differential assembly for WG200 series |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gears and bearings |
| 0631329088 | SPRING PIN | Secures shift fork to rail |
| 5838300811 | THRUST WASHER | Controls axial play in differential side gears |
| 5838300721 | AXLE BEVEL GEAR | Transfers power from differential to axle shaft |
| 5838300633 | AXLE | Drives wheel hub assembly |
| 5838300753 | THRUST WASHER | Positioned between axle bevel gear and housing |
| 5838300818 | THRUST WASHER | Thicker variant for high-load differentials |
Frequently Asked Questions
Q: Can I reuse the 0730.110.396 washer during a transmission rebuild?
A: No. This is a single-use crush washer. Reusing it will result in incorrect preload and rapid bearing failure. Always install a new OEM washer.
Q: What torque specification applies to the differential housing bolts when using this washer?
A: For WG200 transmissions, tighten M12 bolts to 95 Nm (70 ft-lb) in a cross pattern. The washer compresses to 2.3 mm at this torque.
Q: Does this washer fit ZF 4WG-310 transmissions?
A: No. The 4WG-310 uses a larger 80 mm OD washer (part 0730.110.410). Verify your housing bore diameter before ordering.
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Phone: +86 158 2286 3467 |
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