ZF 0730.306.458 WASHER | OEM Genuine Part

Overview

The ZF 0730.306.458 WASHER is a precision-engineered OEM genuine component designed to function as a critical load-spreading and sealing interface within the planetary gear sets of heavy-duty construction machinery transmissions. This hardened steel washer sits between rotating shafts and stationary housings, preventing axial play and maintaining correct gear mesh alignment. The SKU 0730.306.458 is specifically manufactured to ZF’s exacting tolerances, ensuring consistent clamping force distribution when used with adjacent fasteners. When replacing this washer, it is essential to also inspect the 4699101159 HOUSING and 4699301254 HOUSING for wear patterns that may indicate deeper transmission issues.

Symptoms of Failure

• Transmission oil seepage at housing joints: A worn 0730.306.458 washer can no longer maintain proper sealing pressure, leading to slow oil weeping around the 4699309123 HOUSING COVER interface.
• Audible gear rattle during load shifts: Excessive axial clearance from a compressed or cracked washer allows planetary gears to drift, producing a distinct metallic chatter under torque.
• Gradual loss of hydraulic pressure: When this washer fails, internal leakage paths open between clutch packs, causing delayed engagement and reduced machine lifting power.
• Vibration in the driveline at low RPM: Uneven washer wear creates micro-movement in the shaft assembly, transmitting harmonic vibrations through the 4699298049 HOUSING KIT.

Technical Specifications

Compatibility

This washer is a standard component in ZF’s WG series powershift transmissions commonly used in wheel loaders, telehandlers, and graders. It is verified compatible with the following transmission models: WG180, WG200, WG210, WG211, WG310, and WG311. The 0730.306.458 is typically installed in the output shaft bearing preload stack and is often replaced concurrently with the 0636104255 CAP SCREW and 0631306174 CYLINDRICAL PIN during a full housing rebuild. Always verify the washer thickness matches the original shim specification for your specific transmission serial number.

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