ZF 0730.301.872 SNAP RING for WG200/WG92 | OEM Genuine Part

Overview

The ZF 0730.301.872 SNAP RING is a precision-engineered retaining component designed for the WG200, WG92, and related heavy-duty transmission series. This OEM genuine part secures internal assemblies—such as bearing packs and gear clusters—within the transmission housing, preventing axial movement under extreme torque loads. The SKU 0730.301.872 is critical for maintaining proper gear alignment and load distribution. When installed alongside the TRANSMISSION HOUSING and the HOUSING, this snap ring ensures that all rotating elements remain locked in their designated positions, reducing vibration and wear over the transmission’s service life.

Symptoms of Failure

• Transmission oil leaks at the housing joint: A worn or deformed snap ring can allow internal components to shift, breaking the seal between the TRANSMISSION HOUSING and adjacent covers, leading to fluid seepage.
• Gear slipping under load: When the snap ring loses its tension, axial play develops in the gear train, causing intermittent disengagement during acceleration or hill climbing.
• Unusual metallic rattling or clunking: A loose snap ring permits bearing races to move, producing a distinct rattle that intensifies with engine RPM changes.
• Difficult range shifting: Misalignment from a failed snap ring can interfere with the RANGE SELECTOR mechanism, making shifts between high and low range erratic or impossible.

Technical Specifications

Compatibility

This snap ring is engineered for ZF WG-series transmissions, specifically the WG180, WG200, WG90, WG92, WG94, and WG98 models. It fits both the main housing and auxiliary housing assemblies. For complete rebuilds, pair this part with the PERIPHERALS kit and the SUCTION TUBE to ensure all hydraulic and mechanical interfaces are properly sealed and aligned.

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