ZF 2095.303.039 GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2095.303.039 GEAR is a precision-machined helical gear designed for the auxiliary drive and power take-off (PTO) train within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transfers rotational torque from the input shaft to the differential assembly, ensuring synchronized engagement under load. The SKU 2095.303.039 sits directly on the countershaft cluster and meshes with the output gear set, making it critical for smooth gear transitions in heavy-duty commercial vehicles. When this gear wears, it compromises the entire driveline’s timing and load capacity.

Symptoms of Failure

• Whining or howling noise during acceleration: A worn 2095.303.039 gear produces a distinct high-pitched whine that intensifies under load, often mistaken for bearing failure. This noise indicates uneven tooth contact and pitting on the gear flanks.
• Intermittent gear slipping under heavy torque: As the gear teeth wear down, the transmission may momentarily lose engagement, causing a brief loss of power during uphill climbs or when towing. This symptom is frequently reported alongside a failing 0750117075: TAPER ROLLER BEARING, which supports the gear’s axial load.
• Metal particles in transmission oil: Flaking or chipping of the gear’s case-hardened surface releases metallic debris into the lubricant. This contamination accelerates wear on adjacent components like the 5838109021: DIFFERENTIAL and the 2095209019: DIFFERENTIAL.
• Hard shifting or gear clash: Worn gear teeth cause misalignment between the synchronizer hubs and the output shaft, leading to grinding when shifting into higher gears. This often requires simultaneous replacement of the 0631329086: SPRING PIN that secures the shift fork.

Technical Specifications

Compatibility

This gear is engineered for the ZF WG100, WG130, and WG131 series transmissions, which are commonly found in medium-duty trucks, buses, and agricultural machinery. It also fits the WG180 and WG200 variants when used in auxiliary drive configurations. The 2095.303.039 gear interfaces directly with the output shaft and the 5838109021: DIFFERENTIAL assembly. For complete driveline restoration, pair this gear with the 0750117075: TAPER ROLLER BEARING and the 2095209019: DIFFERENTIAL to ensure proper preload and alignment. Always inspect the 0631329086: SPRING PIN for wear during installation.

Related Components