ZF 0730.110.528 SHIM | OEM Genuine Part

Overview

The ZF 0730.110.528 SHIM is a precision-engineered OEM genuine part designed to establish critical axial clearances within heavy-duty ZF transmissions. Positioned between the main shaft assembly and the gear train, this shim compensates for manufacturing tolerances and thermal expansion, ensuring that rotating components maintain their correct end-play. The SKU 0730.110.528 is commonly encountered during rebuilds of construction machinery transmissions, where even a 0.1 mm deviation in clearance can lead to premature bearing failure. By providing a stable, load-bearing interface, this shim directly supports the 2094104412 MAIN SHAFT and the 2094304054 MAIN SHAFT, both of which rely on precise shimming to operate without excessive vibration or axial load.

Symptoms of Failure

• Transmission oil leaks at the main shaft seal: When the 0730.110.528 shim wears or compresses beyond specification, the main shaft shifts axially, distorting the seal lip and causing fluid seepage. This is a common symptom in ZF WG-series units operating under high torque.
• Gear slipping under load: A worn shim allows the gear cluster to drift out of alignment, preventing full engagement of the shift forks. Operators often report intermittent slipping in 3rd or 4th gear during excavation cycles.
• Abnormal driveline noise (clunking or whining): Loss of shim thickness creates excessive end-play, leading to metal-on-metal contact between the gear faces and the 2094106010 SHIFT SYSTEM components. This noise is most pronounced when the transmission is cold.
• Hard shifting or gear clash: As the shim degrades, the 2094206001 GEARSHIFT SHAFT experiences binding due to misaligned detent grooves, making range changes difficult.

Technical Specifications

Compatibility

This shim is engineered for use in ZF WG180, WG200, and WG210 series transmissions commonly installed in wheel loaders, graders, and dump trucks. It is also compatible with certain ZF Ecomat 4HP and 5HP variants used in mobile construction equipment. The 0730.110.528 shim is always replaced in pairs when servicing the main shaft assembly, and it must be used alongside the correct 0630513070 SNAP RING to secure the bearing stack. For complete clearance verification, technicians should also inspect the 2094306019 WASHER for flatness.

Related Components

Frequently Asked Questions

Q: How do I know if the 0730.110.528 shim needs replacement during a rebuild?
A: Measure the main shaft end-play with a dial indicator. If the clearance exceeds 0.30 mm, the shim must be replaced. Always use a new shim of the same thickness unless the bearing stack has been changed.

Q: Can I reuse the old shim if it looks undamaged?
A: No. The shim work-hardens over time and loses its original crush resistance. Reusing it will lead to rapid clearance loss and eventual failure of the 2094104412 MAIN SHAFT bearings.

Q: Is this shim specific to construction machinery, or does it fit on-highway trucks?
A: While primarily used in construction equipment transmissions (WG180/WG200), it also fits certain ZF 16S series truck transmissions. Verify your transmission model tag before ordering.