Overview
The ZF 0730.301.793 SHIM is a precision-engineered OEM genuine part designed to establish critical axial clearances within ZF heavy-duty transmission assemblies. Positioned between the differential housing and bearing races, this shim compensates for manufacturing tolerances and thermal expansion, ensuring optimal gear mesh and load distribution. The SKU 0730.301.793 is specifically calibrated for use in construction machinery transmissions, where even micron-level misalignment can accelerate wear. When installed alongside a 5838109007: DIFFERENTIAL or a 2095209019: DIFFERENTIAL, this shim maintains the precise preload required for long service intervals.
Symptoms of Failure
When the 0730.301.793 shim wears or deforms, it introduces excessive end-play in the differential assembly. Common failure indicators include:
- Transmission whining noise during acceleration – A high-pitched sound from the differential area indicates lost shim thickness.
- Oil seepage at the axle housing seal – Worn shims allow bearing movement, distorting seal contact surfaces.
- Intermittent gear slipping under load – Axial play disrupts clutch pack engagement, causing momentary power loss.
- Vibration in the driveline at low speeds – Uneven preload from a collapsed shim creates harmonic oscillations.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.301.793 |
| Material | Case-hardened steel (DIN 1.7131) |
| Outer Diameter | 68.5 mm |
| Inner Diameter | 52.0 mm |
| Thickness | 1.50 mm (selective fit) |
| Weight | 0.042 kg |
| OEM Reference | ZF 0730.301.793 |
| Hardness | 58-62 HRC |
Compatibility
This shim is a direct fit for ZF powershift transmissions commonly used in wheel loaders and graders. Verified compatible models include:
- ZF WG180 series (WG180, WG181)
- ZF WG200 series (WG200, WG202)
- ZF WG210 series (WG210, WG211)
- ZF 4WG-200 and 4WG-210 variants
During rebuilds, always pair this shim with a new 0750117075: TAPER ROLLER BEARING to ensure correct preload. The 0631329086: SPRING PIN should also be inspected for wear when disassembling the differential housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2095209019 | DIFFERENTIAL | High-capacity differential assembly |
| 0631329086 | SPRING PIN | Secures shim and bearing alignment |
| 5838300817 | THRUST WASHER | Controls axial clearance in clutch packs |
| 5838300682 | DIFFERENTIAL AXLE | Transfers power to wheel hubs |
| 5838300811 | THRUST WASHER | Reduces friction on planetary gears |
| 5841302064 | THRUST WASHER | Spacer for output shaft assembly |
| 5838300137 | OUTER CLUTCH DISK | Friction surface for gear engagement |
| 5838300138 | INNER CLUTCH DISK | Steel separator for clutch packs |
