The factory radius arm plate is prone to failure. Our machined aluminum plate strengthens the radius arm frame mount, and eliminates the worry of ripping out the the radius arm bolts from the weak factory plate. We have put this plate through rigorous testing to ensure we are providing the strongest radius arm plate on the market.; 100% USA made from 3/4" 6061 Billet Aluminum, Longer grade 8 hardware, Increases rear radius arm rigidity.; Rear diff oil fill port; Fits 2018+ XP Turbo S, Anodized Black with engraved logo.