Overview
The ZF 0730.111.804 SHIM is a precision-engineered adjustment component designed to maintain critical axial clearances within heavy-duty ZF transmissions. This OEM genuine part sits between the differential housing and bearing assemblies, ensuring that gear mesh patterns remain within factory tolerances during high-torque operation. The SKU 0730.111.804 is specifically machined to compensate for wear stack-up in construction machinery drivelines, preventing premature component fatigue. When installed alongside a 2093109029: DIFFERENTIAL or 2093209094: DIFFERENTIAL, this shim guarantees consistent load distribution across the gear train.
Symptoms of Failure
- Excessive differential backlash – When the shim wears beyond its service limit, you will notice a clunking sound during direction changes, particularly in wheel loaders and excavators.
- Oil contamination from metal debris – A degraded 0730.111.804 shim sheds fine metallic particles into the transmission fluid, causing accelerated wear on the 0750117075: TAPER ROLLER BEARING and adjacent gears.
- Intermittent gear slipping under load – Loss of proper shim thickness reduces preload on the differential assembly, leading to momentary power loss when climbing grades or pushing heavy material.
- Vibration in the driveline – Uneven shim compression creates harmonic oscillations that can be felt through the chassis at specific RPM ranges.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.111.804 |
| Material | Case-hardened steel (DIN 1.3505 equivalent) |
| Outer Diameter | 82.5 mm |
| Inner Diameter | 62.0 mm |
| Thickness | 1.50 mm (selective fit range: 1.45–1.55 mm) |
| Weight | 0.042 kg |
| OEM Reference | ZF 0730.111.804 |
| Hardness | HRC 58–62 |
Compatibility
This shim is engineered for ZF heavy-duty powershift transmissions commonly used in construction machinery. It directly fits the following ZF model families: WG180, WG200, WG210, and ERGO 4 series. The 0730.111.804 is also found in certain ZF 4WG-200 and ZF 6WG-250 variants where it adjusts the axial position of the 2093309078: DIFF.HOUSING relative to the ring gear. Always verify your transmission serial number before ordering, as shim thickness requirements vary by application.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109029 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209094 | DIFFERENTIAL | Secondary torque split assembly |
| 2093309078 | DIFF.HOUSING | Encloses differential gear set |
| 0631100223 | SPRING PIN | Secures shim alignment during assembly |
| 0730300820 | THRUST WASHER | Reduces axial friction on gear faces |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to final drive |
| 5838300811 | THRUST WASHER | Controls end-play in planetary sets |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Provides speed differentiation between wheels |
Frequently Asked Questions
Q: Can I reuse the 0730.111.804 shim during a rebuild?
A: ZF recommends replacing this shim with every differential overhaul. The selective-fit nature means the original shim may have compressed beyond its elastic limit, leading to incorrect preload on the 0750117075: TAPER ROLLER BEARING.
Q: How do I measure if the shim thickness is correct?
A: Use a micrometer at three points around the shim circumference. The acceptable range is 1.45–1.55 mm. If any measurement falls below 1.45 mm, the shim must be replaced to avoid differential housing damage.
Q: Does this shim fit ZF marine transmissions?
A: No. The 0730.111.804 is specifically designed for construction machinery applications. Marine ZF transmissions use different shim part numbers due to corrosion-resistant material requirements.
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