ZF 2097.310.017 SPUR GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2097.310.017 SPUR GEAR is a precision-machined helical gear designed for the auxiliary drive and power take-off (PTO) systems within ZF WG100, WG130, and WG131 transmission assemblies. This OEM genuine part transfers rotational torque from the countershaft to the output flange, ensuring smooth engagement under heavy loads. The SKU 2097.310.017 sits directly on the intermediate shaft and meshes with the main drive gear to regulate gear ratios during low-speed operations. Its case-hardened alloy steel construction resists pitting and surface fatigue, making it critical for maintaining driveline integrity in industrial vehicles and off-highway equipment.

Symptoms of Failure

• Whining or howling noise during deceleration: Worn tooth profiles on the 2097.310.017 spur gear create uneven contact patterns, producing a distinct high-pitched whine that intensifies as the vehicle slows. This is often the first audible sign of gear fatigue.
• Intermittent PTO engagement failure: When the spur gear’s teeth become chipped or excessively worn, the power take-off unit may fail to lock into position, causing intermittent loss of hydraulic or mechanical output.
• Metallic debris in transmission fluid: Flaking or spalling from the gear surface contaminates the oil sump. Operators may notice silver or bronze particles on the dipstick or during routine oil changes, indicating advanced wear.
• Vibration at specific RPM ranges: A damaged spur gear introduces rotational imbalance, leading to noticeable vibration through the gearshift lever or chassis when the transmission operates between 1,200 and 1,800 RPM.

Technical Specifications

Compatibility

This spur gear is engineered for the ZF WG100, WG130, and WG131 series transmissions, commonly found in medium-duty trucks, agricultural tractors, and construction loaders. It also fits select variants of the WG180 and WG200 models when used with the appropriate countershaft assembly. For proper installation, the gear must be paired with the 2094101017: TRANSMISSION HOUSING to ensure correct shaft alignment. The 2094301069: HOUSING and 2094298054: HOUSING provide the structural enclosure for the gear set, while the 0636302008: SCREW PLUG seals the inspection port during service intervals. Always verify your transmission’s serial number against ZF’s parts catalog before ordering.

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