ZF 0730.063.142 RING | OEM Genuine Part

Overview

The ZF 0730.063.142 RING is an OEM genuine sealing component engineered for high-stress environments within ZF powershift transmissions used in construction machinery. This precision-machined ring sits between the rotating shaft and the stationary 4143101009: HOUSING, forming a critical barrier that maintains hydraulic pressure and prevents fluid migration between clutch packs. The SKU 0730.063.142 is manufactured to exact OEM tolerances, ensuring a consistent seal face under extreme thermal cycling and high-pressure conditions typical of loader and dozer transmissions.

Symptoms of Failure

• Hydraulic pressure drop during gear engagement – When the 0730.063.142 ring wears, internal leakage causes a measurable loss of clutch apply pressure, leading to sluggish shifts or incomplete engagement.
• External oil seepage near the housing joint – A compromised ring allows transmission fluid to escape past the 4143301025: HOUSING, often visible as wet spots or drips on the bell housing.
• Intermittent gear slipping under load – Worn sealing surfaces reduce the ability to hold torque, causing the transmission to momentarily lose drive when pushing heavy loads.
• Contaminated fluid with metallic debris – Abrasion of the ring material introduces fine particles into the oil, accelerating wear on adjacent components like the 0634313603: O-RING and valve bodies.

Technical Specifications

Compatibility

This sealing ring is a standard fitment across ZF’s WG series powershift transmissions commonly deployed in construction machinery. It is directly compatible with the WG180, WG200, and WG210 models, as well as certain variants of the WG150 and WG250 series. The 0730.063.142 ring is also used in the hydraulic control sections of ZF 4WG-200 and 6WG-310 transmissions. For proper installation, always replace the 4475280018: SCREW PLUG and inspect the mating housing surfaces for scoring.

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