ZF 4651.353.005 SPUR GEAR for WG100 | OEM Genuine Part

Overview

The ZF 4651.353.005 SPUR GEAR is a critical power transmission component engineered for the WG 100 Series transmission family. This OEM genuine part, identified by SKU 4651.353.005, functions as a precision-machined gear that transfers torque between parallel shafts within the transmission’s planetary gear set. It sits directly in the intermediate shaft assembly, ensuring smooth engagement and consistent rotational speed under heavy-duty industrial loads. Without this spur gear, the transmission cannot maintain proper gear ratio synchronization, leading to drivetrain inefficiency.

Symptoms of Failure

• Whining or grinding noise during gear engagement: When the 4651.353.005 spur gear wears, its tooth profile degrades, producing a high-pitched whine or metallic grinding sound, especially under load. This is a common long-tail search query for “ZF transmission whining noise WG100.”
• Intermittent gear slipping under torque: A worn spur gear loses its ability to maintain positive engagement, causing the transmission to slip out of gear momentarily when accelerating or climbing. This symptom often appears alongside “WG100 gear slipping repair.”
• Metal particles in transmission fluid: As the gear teeth wear, microscopic metal shavings contaminate the oil. This is frequently searched as “metal flakes in ZF transmission fluid” and indicates imminent gear failure.
• Vibration through the driveline: Uneven tooth wear creates imbalance, transmitting noticeable vibration through the chassis at specific RPM ranges, a symptom often queried as “ZF transmission vibration WG100.”

Technical Specifications

Compatibility

This ZF 4651.353.005 spur gear is specifically designed for the WG 100 Series transmission, which includes models such as the WG100, WG120, and WG150. It is also compatible with the WG180 and WG200 variants when used in the intermediate shaft position, though always verify with your transmission’s serial number. The gear interfaces directly with the 4651101007: TRANSMISSION HOUSING and the 4651301029: HOUSING to maintain proper alignment. For sealing integrity, the 0634303928: O-RING and 4651301024: HOUSING are essential companion components during installation.

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