ZF 0730.112.003 SHIM | OEM Genuine Part

Overview

The ZF 0730.112.003 SHIM is a precision-engineered OEM genuine component designed to establish critical axial clearances within heavy-duty ZF transmissions. This shim sits between the differential housing and the bearing race, ensuring that the gear train maintains proper preload and alignment under extreme loads. The SKU 0730.112.003 is a factory-specified part that compensates for manufacturing tolerances, preventing unwanted movement that can lead to premature wear. When installed alongside a 5838300626: DIFFERENTIAL HOUSING, this shim guarantees that the rotating assembly remains perfectly centered within the transmission case.

Symptoms of Failure

• Excessive differential backlash – When the 0730.112.003 shim wears or compresses beyond tolerance, you will notice a clunking noise during direction changes, indicating lost preload in the differential assembly.
• Oil leaks at the housing seal – A degraded shim allows the differential housing to shift, distorting the seal surface and causing transmission fluid to weep from the joint.
• Gear tooth pitting and whine – Incorrect shim thickness leads to improper mesh between the axle bevel gear and the 5838109012: DIFFERENTIAL, resulting in a high-pitched whine under load and accelerated tooth wear.
• Vibration in the driveline – Worn shims cause the differential carrier to wobble, transmitting vibration through the axle housing that can be felt in the operator cab.

Technical Specifications

Compatibility

This shim is primarily used in ZF WG180, WG200, and WG250 series transmissions found in construction machinery such as wheel loaders, telehandlers, and graders. It is also compatible with ZF 4WG-200 and 4WG-310 power shift transmissions. The 0730.112.003 shim works in conjunction with the 0750117075: TAPER ROLLER BEARING to set the correct bearing preload on the differential carrier. For complete axle rebuilds, pair this shim with the 2093209023: DIFFERENTIAL to restore factory tolerances.

Related Components

Frequently Asked Questions

Q: How do I know if the 0730.112.003 shim needs replacement?
A: Measure the differential backlash with a dial indicator. If the play exceeds 0.25 mm, the shim has likely compressed beyond service limits. Always replace the shim when installing a new taper roller bearing to maintain correct preload.

Q: Can I stack multiple 0730.112.003 shims to adjust clearance?
A: No. ZF specifies using a single shim of the correct thickness. Stacking shims can cause uneven loading and rapid bearing failure. Use the shim alone with the differential housing to achieve the specified torque-to-turn value.

Q: Is this shim compatible with aftermarket differentials?
A: The 0730.112.003 is designed for OEM ZF differentials such as the 5838109012. Aftermarket units may have different housing dimensions, so verify the inner diameter and thickness before installation.