11-Foot Wheel Offset Harrow Disk

The U.S. Fish and Wildlife Service, Mid-Columbia River National Wildlife Refuge Complex, requires an 11-foot wheel offset harrow disk for soil management. The selected vendor must supply all necessary parts, fittings, pins, and connectors to ensure full compatibility and functionality with the FWS-owned 190hp John Deere 7730 agricultural tractor. The disk should be capable of deep plowing through thick vegetation and mixing soil in moist conditions. Key specifications include 16 disks, 32-inch diameter cutout blades, adjustable scrapers, heavy-duty components, and industrial tires. Delivery is required no later than June 30, 2026, to the McNary NWR Maintenance Shop in Burbank, WA.