ZF 4699.302.276 DRIVE PINION for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4699.302.276 DRIVE PINION is a critical power-transfer component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part transmits rotational force from the input shaft directly to the planetary gear set, converting engine torque into controlled motion. The SKU 4699.302.276 is precision-machined to exact factory tolerances, ensuring minimal backlash and optimal gear mesh alignment. When installed alongside the 4699100080: BASIC GEARBOX, this drive pinion forms the core of the drivetrain assembly, requiring proper shimming with a 0630000091: SHIM RING to achieve correct preload.

Symptoms of Failure

When the 4699.302.276 drive pinion begins to wear, operators often notice distinct performance degradation. “Transmission whining noise under load” is a primary indicator, caused by pitting or spalling on the pinion teeth. “Gear slipping in forward ranges” occurs when the pinion loses its hardened surface profile, failing to engage the mating gear properly. “Metallic debris in transmission fluid” signals advanced wear, as fragments from the pinion contaminate the oil. Additionally, “vibration during acceleration” can result from an uneven wear pattern on the pinion, often exacerbated by a failing 0634309122: SHAFT SEAL that allows contaminants into the bearing area.

Technical Specifications

Compatibility

This drive pinion is specifically designed for the ZF WG series of powershift transmissions. Primary compatibility includes WG100, WG130, and WG131 models. It may also be suitable for WG180 and WG200 series when used in conjunction with the correct 0634801038: SEALING RING and proper shim stack. Always verify the transmission serial number before installation. The pinion interfaces directly with the 4699100080: BASIC GEARBOX housing and requires precise axial clearance adjustment using shim rings to prevent premature bearing failure.

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