Overview
The ZF 0730.103.474 SHIM is a precision-engineered OEM genuine part designed to establish exact axial clearances and preload within heavy-duty ZF transmission assemblies. This shim sits between the differential housing and bearing races, compensating for manufacturing tolerances to ensure optimal gear mesh and load distribution. Commonly found in construction machinery drivelines, the SKU 0730.103.474 is critical for maintaining the structural integrity of the differential system. When paired with a 2093109029 DIFFERENTIAL, this shim prevents unwanted axial movement that can lead to premature wear on surrounding components.
Symptoms of Failure
- Excessive driveline backlash: A worn or collapsed shim allows the differential to shift under load, causing a noticeable clunk when shifting between forward and reverse gears.
- Oil leaks from axle seals: Incorrect shim thickness alters the preload on the 0750117075 TAPER ROLLER BEARING, leading to seal distortion and fluid seepage around the differential housing.
- Gear whine or howling: As the shim degrades, the 2093209094 DIFFERENTIAL loses its precise alignment, creating uneven tooth contact that produces a high-pitched noise during operation.
- Vibration under load: A failing shim cannot maintain the correct bearing preload, allowing the 2093309078 DIFF.HOUSING to oscillate, which transmits vibration through the chassis.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 0730.103.474 |
| Material | Hardened spring steel (C67S equivalent) |
| Outer Diameter | 68.0 mm |
| Inner Diameter | 42.5 mm |
| Thickness | 0.50 mm (selective fit) |
| Weight | 0.012 kg |
| OEM Reference | ZF 0730.103.474 |
Compatibility
This shim is engineered for ZF heavy-duty powershift transmissions commonly used in construction machinery. It is a direct fit for the following transmission models: WG180, WG200, WG210, and 4WG-200. The part also integrates with the differential assemblies found in ZF APL-300 and APL-350 series axles. Always verify the shim stack height against the service manual when replacing the 2093109029 DIFFERENTIAL or 2093209094 DIFFERENTIAL to maintain factory tolerances.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109029 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential rotation under load |
| 2093209094 | DIFFERENTIAL | Secondary differential for planetary gears |
| 2093309078 | DIFF.HOUSING | Encloses and supports differential gears |
| 0631100223 | SPRING PIN | Secures differential components in place |
| 0730300820 | THRUST WASHER | Reduces axial friction between gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 2097309085 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Controls end-play in differential assembly |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Engages with pinion for torque split |
Frequently Asked Questions
Q: Can I reuse the ZF 0730.103.474 shim during a rebuild?
A: No. Shims are single-use components because they crush or deform slightly to achieve the correct preload. Always install a new OEM shim when replacing bearings or differentials.
Q: How do I know if I need a 0.50 mm shim or a different thickness?
A: Measure the axial play with a dial indicator after installing the 0750117075 TAPER ROLLER BEARING. Select the shim thickness that brings preload within the 0.05–0.15 mm range specified in the ZF service manual.
Q: Will this shim fit the ZF WG180 transmission?
A: Yes. The 0730.103.474 is a standard selective shim for the WG180, WG200, and WG210 series differential housings. Always cross-reference your existing shim stack before ordering.
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