Overview
The ZF 0730.106.137 WASHER is a precision-engineered OEM genuine shim component designed for critical load distribution within heavy-duty construction machinery transmissions. This hardened steel washer sits between planetary gear sets and bearing assemblies, ensuring correct axial clearance and preventing metal-on-metal contact under extreme torque loads. As a factory-spec part, the SKU 0730.106.137 guarantees exact fitment and material hardness matching ZF’s original design tolerances. When installed alongside a 5838109012: DIFFERENTIAL, this washer maintains proper gear mesh depth and reduces parasitic friction losses in the drivetrain.
Symptoms of Failure
- Transmission oil leaks around the differential housing – A worn 0730.106.137 washer allows excessive end-play, causing seals to distort and weep hydraulic fluid. Search query: “ZF transmission washer oil leak repair.”
- Intermittent gear slipping under load – When the washer thickness degrades, axial play increases, leading to partial disengagement of clutch packs. Search query: “construction machinery gear slipping causes.”
- Metallic grinding noise during turns – Insufficient washer support forces the 0750117075: TAPER ROLLER BEARING to operate outside its designed preload range, generating audible chatter.
- Premature differential bearing failure – A collapsed washer shifts load paths, accelerating wear on the 2093209023: DIFFERENTIAL assembly and requiring costly rebuilds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.106.137 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Outer Diameter | 68.0 mm |
| Inner Diameter | 42.5 mm |
| Thickness | 2.0 mm |
| Weight | 0.045 kg |
| Surface Hardness | 58-62 HRC |
| OEM Reference | ZF 0730.106.137 |
Compatibility
This washer is a standard component in ZF’s WG180, WG200, and WG250 series transmissions used in wheel loaders, excavators, and telehandlers. It directly interfaces with the 5838300626: DIFFERENTIAL HOUSING to set preload on the output shaft assembly. Compatible models include ZF 4WG-180, 4WG-200, 6WG-250, and ERGOPOWER variants. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads |
| 2093209023 | DIFFERENTIAL | Secondary torque distribution unit |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gears |
| 0631329088 | SPRING PIN | Secures shift fork position |
| 5838300811 | THRUST WASHER | Reduces axial friction |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 5838300633 | AXLE | Rotational drive shaft component |
| 5838300753 | THRUST WASHER | Controls side gear clearance |
| 5838300818 | THRUST WASHER | Adjusts pinion gear preload |
Frequently Asked Questions
Q: Can I reuse the ZF 0730.106.137 washer during a rebuild?
A: No. This is a single-use crush washer that deforms during initial torque application. Always replace it with a new OEM part to maintain proper bearing preload and prevent differential housing damage.
Q: What torque specification applies to the nut that compresses this washer?
A: For WG180/200 transmissions, the output shaft nut should be torqued to 450 Nm ±20 Nm. Exceeding this can collapse the washer prematurely.
Q: Does this washer fit ZF 6WG-250 transmissions?
A: Yes, the 0730.106.137 is used in 6WG-250 models, but always cross-reference your transmission’s parts manual as some late-production units use a 2.5 mm thick variant.
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