ZF 0730.107.852 SHIM | OEM Genuine Part

Overview

The ZF 0730.107.852 SHIM is a precision-engineered OEM genuine component designed to establish critical axial clearances within heavy-duty ZF transmissions used in construction machinery. This thin, hardened steel shim sits between the main shaft assembly and the gear train, compensating for manufacturing tolerances to ensure optimal gear mesh and bearing preload. The SKU 0730.107.852 is specifically calibrated to maintain the exact end-play specifications required for long-term durability under high-torque loads. Without this shim, the transmission’s rotating assembly would experience excessive movement, leading to premature wear on adjacent components such as the 2094104412 MAIN SHAFT and the 2094304054 MAIN SHAFT.

Symptoms of Failure

When the ZF 0730.107.852 shim wears or is incorrectly installed, operators will notice distinct performance issues. Transmission gear slipping under load is a primary indicator, as lost axial clearance prevents proper clutch pack engagement. Low-frequency bearing rumble from the transmission housing often accompanies shim failure, signaling that the main shaft is walking axially. Oil leaks at the output flange seal can occur when excessive shaft movement distorts the seal lip. Finally, difficulty engaging forward or reverse gears during cold starts points to incorrect shim stack height, a common long-tail search query for ZF rebuilders.

Technical Specifications

Compatibility

This shim is engineered for ZF’s heavy-duty powershift transmission series commonly deployed in wheel loaders, graders, and dozers. It is a direct fit for the ZF WG180, WG200, and WG210 transmission models. The 0730.107.852 also appears in the ZF 4WG-200 and ZF 6WG-200 series, where it is used in the main shaft preload stack. For rebuilders working on the ZF Ergopower or ZF Ecomat series, always verify the shim count against the factory service manual, as these transmissions use a similar but distinct shim set.

Related Components

Frequently Asked Questions

Q: Can I reuse the 0730.107.852 shim during a rebuild?
No. ZF specifies that shims must always be replaced with new OEM parts. The shim compresses and work-hardens during service; reusing it will result in incorrect end-play and rapid bearing failure.

Q: How do I measure the correct shim thickness for my ZF WG200?
Use a dial indicator to measure main shaft end-play after installing the 2094104412 MAIN SHAFT. Subtract the measured clearance from the factory specification (0.05-0.15 mm) to determine the required shim stack. The 0730.107.852 is 0.50 mm thick; combine with other shims as needed.

Q: Will a worn shim cause damage to the shift system?
Yes. Excessive axial movement from a worn shim can misalign the 2094106010 SHIFT SYSTEM components, leading to incomplete clutch engagement and eventual scoring of the 2094206001 GEARSHIFT SHAFT.