Overview
The ZF 0730.109.738 SHIM is a precision-engineered spacer component used to establish correct axial clearances within heavy-duty ZF transmissions. Positioned between gear sets and bearing assemblies, this OEM genuine shim ensures that rotating elements maintain their designed end-play tolerances under load. The SKU 0730.109.738 is a factory-specified part for construction machinery transmissions, preventing metal-to-metal contact that would otherwise lead to premature wear. When installed alongside a 5838109007: DIFFERENTIAL, this shim compensates for stack-up tolerances, guaranteeing smooth power transfer through the drivetrain.
Symptoms of Failure
- Excessive gear backlash or clunking during direction changes — A worn or collapsed shim allows the differential assembly to shift axially, producing audible impacts when engaging forward or reverse.
- Premature bearing noise or vibration — Without proper shim thickness, a 0750117075: TAPER ROLLER BEARING loses preload, leading to tapered roller skidding and a low-frequency rumble at operating speeds.
- Oil contamination from metallic debris — As the shim surface wears, fine steel particles circulate through the hydraulic system, often visible on the magnetic drain plug.
- Intermittent loss of drive torque — Axial play caused by shim degradation can misalign the 2095209019: DIFFERENTIAL, causing momentary slippage under heavy load.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0730.109.738 |
| Material | Hardened spring steel (C67S equivalent) |
| Thickness | 1.50 mm (nominal) |
| Outer Diameter | 82.0 mm |
| Inner Diameter | 62.5 mm |
| Weight | 0.028 kg |
| OEM Reference | ZF 0730.109.738 |
| Surface Finish | Ground, deburred edges |
Compatibility
This shim is designed for ZF WG series powershift transmissions commonly found in wheel loaders, graders, and telehandlers. Compatible models include the WG180, WG200, and WG210 series. It also applies to select 4WG-200 and 6WG-200 variants used in construction machinery. The 0730.109.738 shim is typically located in the differential carrier housing, where it sets the preload for the taper roller bearing pair. Always verify the shim stack thickness during rebuild; a 0631329086: SPRING PIN is often replaced concurrently to secure the differential carrier to the housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2095209019 | DIFFERENTIAL | Alternate differential assembly variant |
| 0631329086 | SPRING PIN | Locks differential to housing |
| 5838300817 | THRUST WASHER | Controls axial play in gear train |
| 5838300682 | DIFFERENTIAL AXLE | Transmits power to wheel hubs |
| 5838300811 | THRUST WASHER | Reduces friction on planetary gears |
| 5841302064 | THRUST WASHER | High-load washer for output shaft |
| 5838300137 | OUTER CLUTCH DISK | Steel friction plate for clutch pack |
| 5838300138 | INNER CLUTCH DISK | Friction-lined disk for clutch engagement |
