Overview
The ZF 0730.006.682 WASHER is a precision-engineered OEM genuine component designed to maintain critical axial clearance and load distribution within ZF heavy-duty transmissions. This hardened steel washer sits between planetary gear sets and bearing assemblies, ensuring proper spacing and reducing friction under extreme torque loads. As an integral part of the transmission’s internal lubrication and alignment system, the SKU 0730.006.682 directly supports the longevity of adjacent rotating assemblies. When paired with a 5838109012: DIFFERENTIAL or a 0750117075: TAPER ROLLER BEARING, this washer prevents metal-on-metal contact that would otherwise lead to premature component failure.
Symptoms of Failure
- Transmission oil leaks near the differential housing: A worn 0730.006.682 washer can cause misalignment, leading to seal damage and visible fluid seepage around the 5838300626: DIFFERENTIAL HOUSING.
- Gear slipping under load: When the washer loses its original thickness, axial play increases, causing intermittent gear disengagement during heavy operation.
- Metallic grinding noise from the transmission sump: Flattened or cracked washers allow the 2093209023: DIFFERENTIAL to shift, creating abnormal contact patterns and audible wear.
- Increased vibration at the drive axle: Loss of washer integrity disrupts the preload on taper roller bearings, transmitting excessive vibration through the driveline.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.006.682 |
| Material | Case-hardened steel (DIN 1.7131) |
| Outer Diameter | 68 mm |
| Inner Diameter | 42 mm |
| Thickness | 2.5 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.006.682 |
| Surface Hardness | HRC 58-62 |
Compatibility
This washer is engineered for ZF WG-series transmissions commonly used in construction machinery. It is a direct fit for the WG180, WG200, and WG250 models, where it functions as a thrust washer between the differential carrier and the housing. The 0730.006.682 also appears in certain ZF 4WG-200 and 5WG-200 variants. For complete differential rebuilds, always inspect the 5838300811: THRUST WASHER and 5838300721: AXLE BEVEL GEAR for simultaneous wear.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads |
| 2093209023 | DIFFERENTIAL | Secondary differential for planetary gears |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential assembly |
| 0631329088 | SPRING PIN | Secures washer alignment |
| 5838300811 | THRUST WASHER | Reduces axial friction |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axle |
| 5838300633 | AXLE | Drives wheel hubs |
| 5838300753 | THRUST WASHER | Spacer for differential side gears |
| 5838300818 | THRUST WASHER | Adjusts pinion gear clearance |
Frequently Asked Questions
Q: Can I reuse the 0730.006.682 washer during a transmission rebuild?
No. This washer is a single-use component. Its case-hardened surface deforms microscopically during initial torque application, and reusing it will compromise axial preload and accelerate wear on the 5838300626: DIFFERENTIAL HOUSING.
Q: How do I know if the 0730.006.682 fits my ZF WG200 transmission?
Check the transmission serial number plate. The WG200 uses this washer in positions 4 and 7 of the differential carrier. If you are replacing the 2093209023: DIFFERENTIAL, always install a new 0730.006.682 washer simultaneously.
Q: What torque specification applies to the washer’s retaining bolt?
ZF specifies 85 Nm for the M12 bolt that secures this washer. Always use a new 0631329088: SPRING PIN to prevent loosening under vibration.
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