ZF 0730.501.816 RETAINING RING for WG94 | OEM Genuine Part

Overview

The ZF 0730.501.816 RETAINING RING is a precision-engineered axial locking component designed specifically for the WG 94 series of powershift transmissions. This OEM genuine part, identified by SKU 0730.501.816, secures internal assemblies such as clutch packs, bearing races, and gear sets within the transmission housing. It fits into a machined groove to prevent lateral movement of components under high torque and vibration. Proper installation of this retaining ring is critical to maintaining the structural integrity of the gear train and ensuring consistent power delivery in heavy-duty off-highway equipment.

Symptoms of Failure

When the ZF 0730.501.816 retaining ring wears or fatigues, operators may notice several distinct failure indicators. Transmission oil leaks from the housing seam often occur if the ring fails to hold the TRANSMISSION HOUSING components in proper alignment. Gear slipping under load is another common symptom, as the ring’s loss of tension allows clutch packs to shift out of position. Unusual metallic rattling or grinding noises from the transmission bell housing typically indicate that the ring has broken or dislodged. Erratic shifting patterns may also develop, particularly during low-speed maneuvers, due to improper axial clearance within the assembly.

Technical Specifications

Compatibility

This retaining ring is engineered for the ZF WG 94 series of powershift transmissions, which includes models such as the WG94, WG180, and WG200. It is also compatible with select variants of the WG 98 and WG 100 series that share the same shaft and housing architecture. The ring interfaces directly with the HOUSING II and is secured using a CYLINDRICAL PIN to prevent rotation. For proper identification, always reference the TYPE PLATE on your transmission unit before ordering.

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