ZF 0630.302.030 SPRING WASHER for WG200/WG65 | OEM Genuine Part

Overview

The ZF 0630.302.030 SPRING WASHER is a precision-engineered component designed for the WG200 and WG65 series transmissions. This OEM genuine part, identified by SKU 0630.302.030, functions as a critical load-distribution element within the transmission housing assembly. It sits between the hexagon screw fasteners and the housing surface, ensuring consistent clamping force while preventing loosening under high-vibration conditions. The spring washer maintains proper tension on critical joints, directly supporting the structural integrity of the TRANSMISSION HOUSING during heavy-duty operation.

Symptoms of Failure

• Transmission housing bolt loosening: A worn spring washer loses its elastic memory, allowing HEXAGON SCREW fasteners to back out, leading to oil seepage at joint interfaces.
• Gear engagement noise under load: When the washer flattens, clamping force drops, causing micro-movement in the housing that produces audible clunking during shifts.
• Recurring hexagon screw failure: Without proper spring tension, HEXAGON SCREW fasteners experience cyclic fatigue, often shearing at the thread root.
• Torque retention loss: The assembly loses its ability to maintain specified torque values, requiring frequent retightening of HEXAGON SCREW fasteners during routine maintenance.

Technical Specifications

Compatibility

This spring washer is engineered for the ZF WG200 and WG65 transmission families, specifically models WG180, WG200, WG210, WG65, and WG80. It is a direct replacement for the factory-installed washer in the transmission housing bolt pattern. The part also interfaces with the CYLINDRICAL PIN alignment system and the O-RING sealing assembly. For complete housing sealing, pair with the SCREW PLUG and SEALING RING. Always replace the FILTER INSERT and O-RING during major overhauls.

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