ZF 0634.307.753 GROOVED RING for WG200 | OEM Genuine Part

Overview

The ZF 0634.307.753 GROOVED RING is a precision-engineered OEM genuine component designed for the WG200 series transmission. This critical sealing element sits within the clutch pack or planetary gear assembly, where it functions as a dynamic oil control ring to regulate hydraulic pressure and lubricant flow. The grooved profile ensures consistent fluid distribution across rotating surfaces, preventing metal-to-metal contact and maintaining thermal stability under heavy loads. As an OEM genuine part, SKU 0634.307.753 meets ZF’s exacting tolerances for hardness and surface finish, making it essential for transmission rebuilds or overhauls. This ring is often replaced alongside the 4460165051: CONSOLE and 4460368311: CONSOLE to ensure proper alignment of the hydraulic circuit.

Symptoms of Failure

When the 0634.307.753 grooved ring wears beyond service limits, operators may notice these specific failure indicators:

• Internal oil pressure loss – The ring no longer seals effectively, causing clutch slippage during gear engagement, especially under load.
• Erratic shift timing – Worn grooves disrupt fluid metering, leading to delayed or harsh upshifts and downshifts.
• Transmission overheating – Reduced oil flow from a compromised ring increases friction, raising sump temperatures by 15-25°C.
• Metallic debris in oil pan – Fragments from the ring’s wear surface contaminate the fluid, often visible during routine filter changes.

Technical Specifications

Compatibility

This grooved ring is primarily designed for the ZF WG200 series transmissions, including models WG180, WG200, and WG210. It is also compatible with certain ZF Ecomat 4HP and 5HP variants that share the same clutch drum geometry. The ring interfaces directly with the 0636011429: HEXAGON SCREW and 0730100365: WASHER used to secure the console assembly. For complete rebuilds, verify compatibility with your transmission’s serial number against ZF technical bulletins.

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