High Quality Front Left & Right Brake Caliper & Disc Replacement Part for 2011 Polaris Ranger 400 HO For Polaris Models: Ranger 400 HO 2011 Package Includes: 1 x Left Brake Caliper: 1911616 1 x Right Brake Caliper: 1911617 Height: 95.8mm | 3.7″ Length: 115.8mm | 4.5″ Width: 102.8mm | 4.0″ Mounting Hole Spacing: 65.9mm | 2.6″ Mounting Hole Thread Size: 5/16-24 Small Mounting Hole Thread: 1/4-20 Weight: 2 lbs 2.2 oz 2 x Brake Discs: 5244314 Width: 4mm | 015″| Inner Diameter: 89mm | 3.50″ Outer Diameter: 229mm | 9.0″