ZF 4699.302.340 SPUR GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4699.302.340 SPUR GEAR is a critical power transmission component engineered specifically for the WG100, WG130, and WG131 series transmissions. This OEM genuine part functions as a precision-machined gear that transfers rotational force between parallel shafts within the gear train assembly. The SKU 4699.302.340 sits within the intermediate shaft cluster, directly meshing with adjacent gears to maintain proper gear ratios and torque delivery. When installed alongside the 4699101159 HOUSING and 4699301254 HOUSING, this spur gear ensures smooth, synchronized operation under heavy industrial loads.

Symptoms of Failure

• Whining or grinding noise during gear engagement: Worn tooth profiles on the 4699.302.340 spur gear create audible metallic sounds, especially when shifting under load.
• Intermittent gear slipping under torque: Excessive backlash from a damaged spur gear causes momentary loss of power transmission, often described as “skipping” in the driveline.
• Metallic debris in transmission oil: Pitting or spalling on the gear teeth generates fine metal particles, visible during oil changes or when inspecting the 4699298049 HOUSING KIT.
• Vibration at specific RPM ranges: Uneven wear on the spur gear creates harmonic vibrations that intensify through the 4699309123 HOUSING COVER.

Technical Specifications

Compatibility

This spur gear is designed for ZF WG-series transmissions, specifically the WG100, WG130, and WG131 models. It is also compatible with WG180 and WG200 variants when used in the intermediate shaft position. Always verify the gear ratio and tooth count against your transmission’s service manual before installation. The 4699.302.340 is not interchangeable with WG250 or WG300 series gears due to different module sizes.

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