ZF 4642.351.076 SPUR GEAR for WG150 | OEM Genuine Part

Overview

The ZF 4642.351.076 SPUR GEAR is a critical power transmission component engineered specifically for the WG 150 series. This OEM genuine part sits within the planetary gearset assembly, where it transfers torque between parallel shafts to ensure smooth, efficient operation under heavy loads. As a precision-machined spur gear, the SKU 4642.351.076 directly engages with adjacent gears to maintain correct gear ratios and reduce driveline noise. Without this component, the transmission cannot properly distribute engine power to the output shaft, making it essential for maintaining the integrity of your ZF WG150 system.

Symptoms of Failure

When the ZF 4642.351.076 spur gear begins to wear, operators typically notice three to four distinct failure indicators. First, intermittent gear slipping under load occurs as worn teeth lose their ability to maintain positive engagement, especially during uphill climbs or heavy hauling. Second, metallic grinding or whining noises from the transmission housing signal that the gear’s hardened surface has degraded, often accompanied by metal particles in the oil. Third, erratic shifting or delayed engagement happens when the spur gear’s profile no longer matches its mating components, causing hesitation between gear changes. Fourth, vibration through the driveline at specific RPM ranges indicates uneven tooth wear, which can accelerate damage to the 4642101109: TRANSMISSION HOUSING and 4642301205: TRANSMISSION HOUSING if left unaddressed.

Technical Specifications

Compatibility

This spur gear is primarily designed for the ZF WG 150 series, but it also fits select models in the WG180 and WG200 families due to shared planetary gearset architecture. Specifically, the 4642.351.076 is compatible with WG150, WG180, and WG200 transmissions manufactured after 2005. For proper installation, ensure the 0730365125: TYPE PLATE on your unit confirms the series designation. Additionally, the 0631311009: GROOVED STUD must be torqued to specification when securing the gear to the shaft. Always verify your transmission’s serial number against ZF’s compatibility chart before ordering.

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