The stock motor mount tubes tend to fail under continued aggressive use. Our Heavy Duty RZR Motor Mount Tube is made from 2” 4130 chromoly with tig welded, laser cut tabs; this upgrade will reduce movement and stress on your engine mounting tabs. Fits 2014-2018 RZR XP-1000, 2016+ XP-Turbo, Turbo-S, RS1, and Polaris RZR Pro XP .