WIX Filtration 51551 Hydraulic Spin-On Filter

The WIX Filters 51551 Hydraulic Spin-On Filter is a high-efficiency hydraulic oil filter designed for industrial and mobile hydraulic systems, featuring a metal canister housing and a spin-on format for easy service. It uses high-efficiency hydraulic filter media to remove contaminants from hydraulic oil, helping protect pumps, valves, and actuators in demanding equipment. This heavy-duty filter is intended for applications including hydraulic power units, construction equipment, agricultural machinery, industrial presses, and mobile hydraulic systems that operate under continuous pressure. Key construction and features include a corrosion-resistant housing, a gasket included for a reliable seal, a flow direction of outside-in, an integrated bypass valve, and an anti-drainback valve to maintain lubrication during changes. Operating fluid is hydraulic oil, and the unit is suitable for industrial and mobile hydraulic systems requiring dependable fluid cleanliness. Its pressure resistance is rated for hydraulic systems. Common replacements include Baldwin BT839-10, Donaldson P550388, and Fleetguard HF6552.