ZF 0730.111.806 SHIM | OEM Genuine Part

Overview

The ZF 0730.111.806 SHIM is a precision-engineered adjustment component designed for heavy-duty construction machinery transmissions. This OEM genuine part plays a critical role in establishing the correct axial clearance and preload within the differential assembly of ZF drive axles. By acting as a thin, calibrated spacer, the SKU 0730.111.806 ensures that gear meshing and bearing alignment remain within factory tolerances. It is typically positioned between the differential housing and the bearing race, directly influencing the rotational stability of the entire drivetrain. Without this specific shim, the transmission cannot achieve the precise load distribution required for long-term durability under high-torque conditions.

Symptoms of Failure

When the ZF 0730.111.806 SHIM wears out or is incorrectly installed, operators will notice distinct mechanical issues. The most common symptom is excessive differential backlash, often felt as a clunking noise when shifting between forward and reverse gears. Another critical sign is premature bearing wear, which manifests as a whining or grinding sound from the axle housing during operation. You may also observe uneven tire wear patterns on construction machinery, indicating that the differential is not distributing torque evenly. Finally, if the shim collapses or corrodes, it can lead to oil contamination from metal particles, as the 0750117075: TAPER ROLLER BEARING loses its proper preload and begins to shed material.

Technical Specifications

Compatibility

This shim is specifically engineered for ZF heavy-duty transmission models commonly used in construction and agricultural machinery. It is a direct fit for the ZF WG180 and ZF WG200 series power shift transmissions. Additionally, it is compatible with the ZF APL-300 and ZF APL-350 axle ranges. The 0730.111.806 is frequently replaced during differential rebuilds alongside the 2093109029: DIFFERENTIAL assembly and the 2093209094: DIFFERENTIAL unit. For complete axle overhauls, it is also used with the 2093309078: DIFF.HOUSING to restore factory clearance specifications.

Related Components

Frequently Asked Questions

Q: How do I know if the 0730.111.806 shim is the correct thickness for my rebuild?
A: The correct thickness is determined by measuring the actual backlash in the differential assembly. Use a dial indicator to check the play between the 4482360002: AXLE BEVEL GEAR and the pinion. If the clearance exceeds 0.25 mm, a thicker or thinner shim (such as the 0730.111.806) is required to restore the 0.10–0.15 mm factory spec.

Q: Can I reuse this shim if it looks clean?
A: No. ZF shims are designed for single-use installation. The material work-hardens under load, and reusing a shim can lead to incorrect preload on the 0750117075: TAPER ROLLER BEARING. Always install a new OEM 0730.111.806 during any differential service.

Q: What tools are needed to replace this shim?
A: You will need a bearing puller, a torque wrench, and a dial indicator. The shim sits behind the bearing race inside the 2093309078: DIFF.HOUSING. After removing the differential assembly, the old shim can be pried out and the new one tapped into place using a soft-faced mallet.