ZF 4646.252.050 SPUR GEAR for WG250 | OEM Genuine Part

Overview

The ZF 4646.252.050 SPUR GEAR is a precision-machined component engineered specifically for the WG250 series transmission. This gear sits within the intermediate shaft assembly, where it transfers rotational force and torque between parallel shafts to maintain proper gear mesh and power flow. As an OEM genuine part, SKU 4646.252.050 ensures exact fitment and metallurgical consistency with the original transmission design. When installed alongside the 4646101029: TRANSMISSION HOUSING, this spur gear contributes to the overall durability and smooth operation of the drivetrain.

Symptoms of Failure

• Whining or grinding noise during acceleration: Worn gear teeth create irregular contact patterns, producing audible metallic sounds that intensify under load.
• Vibration through the gearshift lever or chassis: Excessive backlash from a degraded spur gear causes harmonic vibrations that transmit through the transmission housing.
• Intermittent gear slippage or delayed engagement: As tooth profiles wear, the gear loses its ability to maintain positive engagement, leading to momentary power loss.
• Metallic debris in transmission fluid: Flaking or pitting on the gear surface contaminates the oil, often visible during routine fluid changes.

Technical Specifications

Compatibility

This spur gear is primarily designed for the ZF WG250 series transmission. Based on its tooth geometry and shaft interface, it is also compatible with the WG180 and WG200 models when used in the same intermediate shaft position. The part integrates directly with the 4646301090: HOUSING and is secured by the 0636015304: HEXAGON SCREW. For complete assembly, the 4646301087: COVER must be installed over the gear cavity to prevent contamination. Always verify shaft spline count and center distance before installation.

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