Kuryakyn Mount Clamps for side mount license holders Harley Softail 3183 Required for installation of Kuryakyn's Curved Horizontal Side Mount License Holders These clamps make installation of your new side mount plate holder a snap! Part # 3183 Sold Each Fits: '86-'12 Softail (except FXCW/C and '09 FXSTSSE) without Kryakyn Swingarm Covers