ZF 0730.501.264 RETAINING RING for WG200/WG92 | OEM Genuine Part

Overview

The ZF 0730.501.264 RETAINING RING is an OEM genuine snap ring engineered for axial retention of gear train components within the WG200 and WG92 series transmissions. This precision-formed ring locks the planetary carrier assembly into its designated groove inside the TRANSMISSION HOUSING, preventing lateral displacement under high-torque loads. As a critical fastening element, SKU 0730.501.264 ensures that the RANGE SELECTOR mechanism maintains proper alignment with the clutch packs. Without this retaining ring, the entire gearset would lose its positional integrity, leading to catastrophic internal damage.

Symptoms of Failure

• Transmission oil leaks near the bell housing – A worn or broken retaining ring allows the planetary carrier to shift, compressing the O-RING seal and causing fluid seepage.
• Gear slipping under load – When the ring loses tension, the PERIPHERALS assembly can slide axially, resulting in incomplete clutch engagement and power loss.
• Metallic grinding noises from the transmission – A fractured retaining ring permits metal-on-metal contact between the gear hub and the HOUSING, producing audible wear sounds.
• Erratic shift timing – Axial play caused by a fatigued ring disrupts the hydraulic balance sensed by the range selector, leading to delayed or harsh shifts.

Technical Specifications

Compatibility

This retaining ring is specifically designed for the ZF WG 200 Series (including WG180, WG200, WG210) and the ZF WG 92 Series (WG92, WG98) transmissions. It fits the groove machined into the TRANSMISSION HOUSING for the planetary carrier retention. Always verify the housing bore diameter before installation; the ring is not interchangeable with older WG120 or WG150 models.

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