ZF 0730.111.803 SHIM | OEM Genuine Part

Overview

The ZF 0730.111.803 SHIM is a precision-engineered OEM genuine component designed to establish critical axial clearances within heavy-duty ZF transmissions. This thin, hardened steel shim sits between the differential housing and the bearing race, ensuring that gear mesh patterns remain within factory tolerances. By adjusting the preload on the 0750117075 TAPER ROLLER BEARING, the SKU 0730.111.803 prevents unwanted movement of the differential assembly. In construction machinery transmissions, maintaining this precise gap is essential for distributing torque evenly across the drivetrain. Without the correct shim thickness, the entire differential cluster—including the 2093109029 DIFFERENTIAL—can experience accelerated wear.

Symptoms of Failure

When the ZF 0730.111.803 SHIM becomes worn or compressed beyond its service limit, operators will notice distinct mechanical issues. Excessive differential backlash is the most common symptom, often felt as a clunking sound when shifting between forward and reverse. Oil contamination with metallic debris appears as the shim’s hardened surface flakes away, circulating particles through the transmission fluid. Premature bearing failure occurs because the 0750117075 TAPER ROLLER BEARING loses its preload, allowing radial play that damages both the bearing and the 2093209094 DIFFERENTIAL. Finally, intermittent gear slipping under load signals that the shim stack has collapsed, altering the mesh depth of the bevel gear set.

Technical Specifications

Compatibility

This shim is a standard selective-fit component used across multiple ZF heavy-duty transmission families. It is directly compatible with the ZF WG180, ZF WG200, and ZF WG210 series, commonly found in wheel loaders, graders, and dump trucks. The 0730.111.803 also fits the ZF 4WG-200 and ZF 6WG-250 transmissions where the differential housing requires precise axial shimming. In these assemblies, it works in concert with the 2093309078 DIFF.HOUSING to maintain proper bearing preload on the 2093109029 DIFFERENTIAL.

Related Components

Frequently Asked Questions

Q: How do I know if I need a thicker or thinner shim for my ZF transmission?
A: Measure the backlash between the differential bevel gear and the pinion. If the clearance exceeds 0.30 mm, you likely need a thicker shim. The 0730.111.803 is a 0.80 mm baseline; always stack shims to achieve the specified preload torque on the 0750117075 TAPER ROLLER BEARING.

Q: Can I reuse this shim after a differential rebuild?
A: No. The shim work-hardens and deforms plastically during service. Always install a new OEM 0730.111.803 shim when replacing the 2093109029 DIFFERENTIAL or the 2093309078 DIFF.HOUSING.

Q: Does this shim fit the ZF WG180 transmission?
A: Yes. The 0730.111.803 is a standard selective shim for the WG180, WG200, and WG210 series. Always verify your differential housing part number against the 2093309078 DIFF.HOUSING to confirm compatibility.