ZF 4699.302.263 SPUR GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4699.302.263 SPUR GEAR is a precision-machined component engineered for the auxiliary drive train within ZF WG100, WG130, and WG131 transmissions. This gear transfers rotational force from the input shaft to the oil pump and PTO (Power Take-Off) system, ensuring consistent hydraulic pressure and auxiliary power delivery. As an OEM genuine part, SKU 4699.302.263 meets ZF’s strict tolerances for tooth profile and surface hardness, directly replacing worn units to restore driveline efficiency. It sits on the intermediate shaft, meshing with the main drive gear, and is secured within the transmission housing assembly.

Symptoms of Failure

• Whining or grinding noise during PTO engagement – Worn tooth flanks on the spur gear create irregular contact patterns, producing audible metal-on-metal sounds when the auxiliary system is activated.
• Intermittent oil pressure drops – A chipped or cracked gear tooth reduces pump speed, leading to fluctuating hydraulic pressure that triggers warning lights on the dash.
• Difficulty shifting into gear ranges – Excessive backlash from a worn 4699.302.263 gear causes delayed or harsh engagement, particularly in WG130 and WG131 units under load.
• Metal debris in transmission fluid – Pitting or spalling on the gear surface sheds microscopic particles into the oil, often detected during routine filter inspections.

Technical Specifications

Compatibility

This spur gear is specifically designed for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It also fits select variants of the WG180 and WG200 when used with the correct HOUSING (4699101093) and HOUSING (4699301175). For proper sealing, always pair this gear with a new O-RING (0634303936) and the COVER (4699301041) to prevent contamination. Verify your transmission’s serial number before ordering, as minor spline variations exist between early and late production units.

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