WIX 51858 Hydraulic Filter

The WIX Filters 51858 Hydraulic Filter is a spin-on hydraulic filter that delivers clean hydraulic fluid to protect pumps, valves, and actuators in industrial and mobile systems. Built with a metal canister housing and corrosion‑resistant finish, it uses high‑efficiency hydraulic filter media and is designed for hydraulic oil with an outside‑in flow. The filter includes a gasket for a secure seal and an integrated bypass valve to maintain system pressure in the event of a plug. It is rated for heavy‑duty service and suitable for continuous operation in demanding environments. Common applications include hydraulic power units, construction equipment, industrial presses, agricultural machinery, and other mobile machinery that require dependable fluid cleanliness. This part is part of the WIX Filters line and is commonly used as a replacement in hydraulic systems, with cross references such as Baldwin BT839-10, Donaldson P550388, and Fleetguard HF6552.