American Star Manfacturing LLC, High Flow Oil Cooler Sandwich Adapter Easy to install. Remove your oil filter and the bolt, then bolt it on! Fits -8AN Fittings Comes with O-Ring Manufactured by American Star Manufacturing LLC In the good ole USA Fits: High Flow Oil Cooler Sandwich Adapter Easy to install. Remove your oil filter and the bolt, then bolt it on! Comes with 8AN Fittings Comes with o-ring Manufactured by Weller Racing Fits: RZR 570, 570S, 800, 800S, 4 800, XP 1000, XP4 1000, XP Turbo, Ranger 570s, Ranger 800s, Teryz 750, Teryx 4 Takes the following Oil Filters And More: Polaris Part # 2540086, Wix 51356XP Available on Amazon.com