ZF 0630.004.100 SHIM RING for WG65 | OEM Genuine Part

Overview

The ZF 0630.004.100 SHIM RING is a precision-engineered component designed for the WG 65 Series transmission. This OEM genuine part, identified by SKU 0630.004.100, functions as a critical axial spacer within the planetary gearset assembly. Its primary role is to maintain exacting clearances between rotating and stationary elements, ensuring proper load distribution and preventing metal-on-metal contact. Located adjacent to the 4108301304: BEARING COVER and the 4108102042: INPUT shaft, this shim ring directly influences gear mesh patterns and overall transmission efficiency. Without this shim, the entire drivetrain risks misalignment and premature wear.

Symptoms of Failure

When the 0630.004.100 SHIM RING wears or becomes deformed, operators will notice distinct operational issues. Transmission gear slipping under load is a primary indicator, as lost axial clearance allows gears to shift out of optimal engagement. Low-frequency humming or whining from the planetary section often accompanies this wear, particularly during acceleration. Metallic debris in the transmission oil filter is another critical symptom, signaling that the shim ring has begun to erode against adjacent surfaces like the 4108101112: HOUSING. Finally, intermittent loss of drive in higher gears can occur when the shim ring fails to maintain proper preload on the bearing pack.

Technical Specifications

Compatibility

This shim ring is specifically engineered for the ZF WG 65 Series transmission family. It is directly compatible with models including the WG65, WG80, WG120, WG180, and WG200 when used in the planetary output section. The part also applies to certain WG 65-1 and WG 65-2 variants. Always verify the thickness requirement against the service manual, as selective shimming is common. The 4108201177: HOUSING and 0636302056: SCREW PLUG are frequently replaced concurrently during shim ring service.

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