ZF 0730.009.170 WASHER | OEM Genuine Part

Overview

The ZF 0730.009.170 WASHER is an OEM genuine thrust washer engineered for precise axial load management within ZF heavy-duty construction machinery transmissions. Positioned between rotating shafts and stationary housings, this washer maintains critical clearances in the planetary gear set assembly. The SKU 0730.009.170 ensures exact fitment for maintaining gear mesh alignment and preventing metal-to-metal contact. When paired with the 4143101009 HOUSING and the 4143301025 HOUSING, this washer forms a vital boundary layer that absorbs thrust forces during high-torque operations in loaders, graders, and excavators.

Symptoms of Failure

• Transmission oil leaks at housing seams — A worn 0730.009.170 washer allows excessive axial play, distorting the 0634313603 O-RING seal and causing fluid seepage around the main case joint.
• Gear slipping under load — Thinning of the washer reduces preload on clutch packs, leading to intermittent power loss during uphill or heavy digging operations.
• Metallic grinding noise from the planetary section — When the washer fails completely, hardened steel components contact the 4475280018 SCREW PLUG bore, producing a distinct scraping sound at low RPM.
• Increased backlash in the driveline — Worn washers allow the gear train to shift laterally, causing delayed engagement and vibration through the shift lever.

Technical Specifications

Compatibility

This washer is a standard component in ZF WG180, WG200, and WG310 series transmissions commonly used in construction machinery. It also appears in select ZF 4WG-200 and 6WG-310 torque converter units. For exact fitment verification, cross-reference the part number with your transmission serial plate. The washer interfaces directly with the 0501342341 SUPPORT RING and the 4143298457 SEAL KIT to ensure complete hydraulic circuit integrity.

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