ZF 4642.351.013 BUSH for WG150 | OEM Genuine Part

Overview

The ZF 4642.351.013 BUSH is a precision-engineered bearing component designed specifically for the WG150 series transmission. This OEM genuine part functions as a critical wear surface within the planetary gear set, reducing friction between rotating shafts and stationary housing elements. The SKU 4642.351.013 ensures exact dimensional tolerances required for proper oil flow and load distribution in heavy-duty commercial vehicle transmissions. When installed alongside a TRANSMISSION HOUSING or TRANSMISSION HOUSING, this bushing maintains correct shaft alignment and prevents metal-on-metal contact during high-torque operations.

Symptoms of Failure

• Transmission oil leaks near the bell housing – Worn bushings allow shaft wobble, damaging seals and causing fluid seepage around the input shaft area.
• Gear slipping under load – Excessive bushing clearance reduces hydraulic pressure in clutch packs, leading to delayed engagement or complete slip during acceleration.
• Metallic grinding noise during gear changes – Degraded bushing material creates debris that contaminates oil, producing audible grinding sounds from the planetary assembly.
• Vibration at highway speeds – Uneven bushing wear causes shaft imbalance, transmitting noticeable vibration through the chassis at 45-65 mph.

Technical Specifications

Compatibility

This bushing is engineered for the ZF WG150 transmission series, commonly found in municipal buses, refuse trucks, and medium-duty delivery vehicles. It is also compatible with WG180 and WG200 models that share the same planetary gear carrier design. Always verify fitment by checking the TYPE PLATE affixed to your transmission housing. The bushing works in conjunction with the GROOVED STUD that secures the planetary assembly, ensuring proper oil circulation through the lubrication channels.

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