ZF 4699.303.015 SHIM RING | OEM Genuine Part

Overview

The ZF 4699.303.015 SHIM RING is a precision-engineered OEM genuine component designed for critical axial clearance adjustment within ZF heavy-duty transmissions. This shim ring sits between the planetary gear set and the housing assembly, ensuring correct preload and gear mesh alignment. As part number 4699.303.015, it is essential for maintaining proper end-play tolerances in construction machinery drivelines. When installed alongside the 4699101046 HOUSING and the 4699301109 HOUSING, this shim ring prevents metal-to-metal contact and reduces vibration under heavy loads.

Symptoms of Failure

• Excessive gear backlash or slipping: A worn or incorrectly sized shim ring allows axial movement, causing delayed engagement and power loss during shifting.
• Low-frequency transmission hum or whine: When the shim ring loses thickness, gear teeth no longer mesh correctly, producing audible noise under load.
• Oil leaks near the bearing cover interface: Deterioration of the shim ring can distort the seal surface, leading to fluid seepage around the 4699301017 BEARING COVER.
• Premature bearing wear: Without proper shim ring support, bearings experience uneven loading, resulting in metallic debris in the oil pan.

Technical Specifications

Compatibility

This shim ring is primarily used in ZF WG180, WG200, and WG210 series transmissions found in wheel loaders, graders, and dump trucks. It also fits select ZF Ecomat and Ecolife models where axial clearance adjustment is required between the sun gear and the 4699301085 COVER. Always verify thickness requirements using the factory service manual, as selective shimming is necessary for proper preload.

Related Components