ZF 4642.252.053 SPUR GEAR for WG150 | OEM Genuine Part

Overview

The ZF 4642.252.053 SPUR GEAR is a critical power transmission component engineered specifically for the WG 150 series transmission assembly. This OEM genuine part transfers rotational force between parallel shafts within the gear train, ensuring precise torque distribution and smooth operation under heavy industrial loads. The SKU 4642.252.053 sits directly within the main drive cluster, meshing with adjacent gears to maintain optimal gear ratio integrity. When installed correctly, this spur gear minimizes vibration and noise while maximizing drivetrain efficiency in demanding material handling and construction equipment applications.

Symptoms of Failure

• Whining or grinding noise during gear engagement: Worn gear teeth produce audible metallic sounds, especially under load, indicating surface fatigue or pitting on the 4642.252.053 spur gear.
• Intermittent gear slipping or loss of torque: Damaged tooth profiles cause irregular power transfer, leading to sudden drops in output speed or unexpected transmission disengagement during operation.
• Metallic debris in transmission fluid: Flaking or chipped gear teeth contaminate the oil, visible as glitter-like particles during routine fluid checks, signaling advanced wear of the spur gear.
• Increased operating temperature: Excessive friction from a degraded gear surface generates abnormal heat, often triggering thermal warnings or reducing transmission service life.

Technical Specifications

Compatibility

This spur gear is primarily designed for the ZF WG 150 series transmission, but its tooth geometry and shaft fitment also make it suitable for select models in the WG 180 and WG 200 families. It is commonly found in off-highway vehicles such as forklifts, telehandlers, and wheel loaders. For precise fitment, always verify the gear count and bore diameter against your transmission’s service manual. The 4642.252.053 spur gear works in conjunction with the 4642101109: TRANSMISSION HOUSING and the 4642301205: TRANSMISSION HOUSING to maintain proper alignment. Additionally, the 0730365125: TYPE PLATE provides identification data, while the 0631311009: GROOVED STUD secures the gear assembly within the housing.

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