The Western 49452 is a genuine OEM cartridge valve, specifically an SV08-45, designed for Western Wideout and Wideout XL snowplows. This hydraulic 4-way, 2-position valve is a critical component located on the vertical hydraulic manifold block of the plow. It's also interchangeable with Fisher 49453 and certain Blizzard plow valves, making it a versatile replacement part for various heavy-duty snow removal equipment.