ZF 4642.303.134 OUTPUT GEAR for WG150 | OEM Genuine Part

Overview

The ZF 4642.303.134 OUTPUT GEAR is a critical component within the WG 150 Series transmission, responsible for transferring rotational torque from the planetary gear set to the driveline flange. This OEM genuine part sits at the rear of the transmission housing, directly engaging with the output shaft to ensure smooth power delivery under heavy loads. The SKU 4642.303.134 is precision-machined to ZF’s exacting tolerances, making it essential for maintaining gear mesh alignment and preventing premature wear in industrial drivetrains. When replacing this gear, technicians often inspect the TRANSMISSION HOUSING (4642101114) and TRANSMISSION HOUSING (4642301213) for cracks or distortion that could affect gear seating.

Symptoms of Failure

• Whining or howling noise during acceleration: Worn gear teeth create irregular contact patterns, producing a distinct metallic whine that increases with RPM. This is a common long-tail search query for “ZF WG150 output gear noise.”
• Vibration in the driveline at cruising speeds: As the output gear loses its tooth profile, imbalance occurs, transmitting vibrations through the transmission housing and into the chassis.
• Oil contamination with metallic debris: Flaking or pitting on the gear surface sheds steel particles into the transmission fluid, often visible during oil changes. This symptom frequently triggers searches for “ZF transmission metal shavings in oil.”
• Intermittent gear slipping under load: Excessive backlash from a worn output gear can cause momentary loss of torque transfer, especially when climbing grades or towing heavy loads.

Technical Specifications

Compatibility

This output gear is specifically engineered for the ZF WG 150 Series transmission family. Based on its gear geometry and spline configuration, it is also compatible with the WG 180 and WG 200 models that share the same output shaft diameter and tooth profile. It is not interchangeable with older ZF S-series or Ecomat transmissions. Always verify the TYPE PLATE (0730365125) on your transmission to confirm model designation before ordering. The GROOVED STUD (0631311009) is frequently replaced simultaneously to ensure proper retention of the output flange.

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