ZF 0730.006.994 SHIM | OEM Genuine Part

Overview

The ZF 0730.006.994 SHIM is a precision-engineered OEM genuine component designed to establish critical axial clearances within heavy-duty ZF transmissions. This thin, hardened steel spacer sits between the differential housing and the bearing race, ensuring that gear meshing and load distribution remain within factory tolerances. The SKU 0730.006.994 is specifically used to eliminate unwanted end-play in the differential assembly, which is essential for maintaining smooth power transfer in construction machinery. Without this shim, the entire drivetrain can suffer from misalignment, leading to accelerated wear on adjacent components such as the 5838109012: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING.

Symptoms of Failure

When the ZF 0730.006.994 shim wears down or is incorrectly sized, several distinct failure modes emerge. Operators often report a “loose differential backlash” where the driveline clunks during direction changes. Another common symptom is a persistent “transmission whining noise under load” that originates from the differential area, indicating that the 2093209023: DIFFERENTIAL is no longer properly shimmed. You may also notice “uneven tire wear on construction loaders” due to altered preload on the axle. Finally, a “differential housing oil leak” can occur if the shim failure allows the 5838300626: DIFFERENTIAL HOUSING to shift, breaking the seal.

Technical Specifications

Compatibility

This shim is a standard service part for several ZF heavy-duty transmission families used in construction machinery. It is commonly found in the WG180, WG200, and WG210 series power shift transmissions. It also applies to the 4WG-200 and 4WG-210 variants used in wheel loaders and graders. Always verify the current shim stack thickness before installation, as the 0730.006.994 is often used in combination with other shims to achieve the precise preload for the 0750117075: TAPER ROLLER BEARING.

Related Components

Frequently Asked Questions

Q: How do I know if the 0730.006.994 shim is the correct thickness for my ZF transmission?
A: You must measure the existing shim stack and the bearing preload using a dial indicator. The 0730.006.994 is a 1.50 mm shim; if your clearance requires a different thickness, you may need to combine it with other shims or select a different size from the ZF shim kit.

Q: Can I reuse the old shim if it looks undamaged?
A: No. ZF OEM shims are designed for single-use installation. Even minor deformation from the initial torque can alter the preload. Always install a new 0730.006.994 shim when rebuilding the differential to ensure the 5838300626: DIFFERENTIAL HOUSING maintains proper alignment.

Q: Does this shim fit the ZF 4WG-200 transmission?
A: Yes, the 0730.006.994 is a standard component in the 4WG-200 and 4WG-210 series. It is used in the differential bearing preload stack alongside the 0750117075: TAPER ROLLER BEARING.