ZF 0501.337.086 GROOVED RING | OEM Genuine Part

Overview

The ZF 0501.337.086 GROOVED RING is a precision-engineered OEM genuine component designed to secure and position internal assemblies within ZF heavy-duty transmissions. This grooved ring, identified by SKU 0501.337.086, functions as a critical axial retention device, preventing lateral movement of shafts and gear sets under high torque loads. Typically seated within a machined groove on a transmission shaft or housing bore, it ensures that adjacent components such as the CROWN WHEEL and DIFFERENTIAL remain correctly aligned during operation. In construction machinery transmissions, this ring withstands extreme vibration and thermal cycling, making its integrity essential for drivetrain reliability.

Symptoms of Failure

When the ZF 0501.337.086 grooved ring wears or fractures, operators may notice specific failure indicators that compromise transmission performance. Common symptoms include:

• Axial shaft play or end-float: A worn ring allows the shaft to shift laterally, causing irregular gear engagement and audible clunking during acceleration or deceleration.
• Oil leaks from transmission seals: As the ring loses its grip, shaft movement can distort nearby seals, leading to fluid seepage around the housing joints.
• Gear slipping under load: Insufficient axial retention permits the DIFFERENTIAL assembly to drift, resulting in momentary power loss or harsh shifting in construction equipment.
• Metallic debris in transmission fluid: A fractured ring sheds hardened steel particles, which can contaminate the oil and accelerate wear on bearings and gears.

Technical Specifications

Compatibility

This grooved ring is engineered for integration into ZF heavy-duty transmission models commonly deployed in construction machinery. Based on its dimensional profile and application, the 0501.337.086 is compatible with the following ZF transmission series: WG180, WG200, WG210, and WG250. It also appears in certain ECOMIX and Powershift variants used in wheel loaders and graders. For precise fitment, always verify the ring groove diameter against the DIFFERENTIAL HOUSING specifications in your service manual.

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