ZF 4644.208.152 SPUR GEAR for WG180 | OEM Genuine Part

Overview

The ZF 4644.208.152 SPUR GEAR is a critical power transmission component engineered specifically for the WG 180 Series transmission. This OEM genuine part functions as a direct-drive gear within the planetary gearset, transferring torque from the input shaft to the output assembly with minimal energy loss. Positioned within the intermediate housing section, the spur gear meshes precisely with mating pinions to maintain consistent rotational speed and load distribution. The SKU 4644.208.152 is manufactured to ZF’s exacting tolerances, ensuring seamless integration with the TRANSMISSION HOUSING and the OUTPUT FLANGE for reliable long-haul performance.

Symptoms of Failure

When the ZF 4644.208.152 spur gear wears out, operators may notice distinct operational issues. Whining or grinding noises during gear engagement often indicate pitting or tooth surface fatigue, a common long-tail search query for WG180 gear failure. Intermittent power loss under load occurs when worn teeth skip or fail to mesh correctly, leading to erratic acceleration. Metallic debris in the transmission oil filter is a definitive sign of gear material spalling, which can cascade into damage of the DISCONNECTION assembly. Vibration at specific RPM ranges suggests uneven tooth wear, often requiring immediate replacement to prevent housing cracks.

Technical Specifications

Compatibility

This spur gear is primarily designed for the ZF WG 180 Series transmission, commonly found in heavy-duty trucks and construction equipment. It is also compatible with the WG 200 and WG 160 series when used in conjunction with the correct HEXAGON SCREW kit for mounting. The gear fits all WG180 variants (A, B, C revisions) and can be retrofitted into select ZF Ecolife models with adapter plates. Always verify the tooth count and shaft spline configuration against your transmission’s serial number before installation.

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