Feature: 1. Applicable Model: The rear brake caliper is replacement for Polaris Ranger RZR Brutus MRZR2 Military. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return. 2. OE Number: The part numbers for reference are 1911373, 1911374. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 3. Accurate Control: The brake caliper uses a hydraulic system to transmit the braking force, which can precisely control the strength of the braking force, allowing the rider to better control the braking process. 4. Perfect Heat Dissipation: Motorcycle brake calipers use special materials and heat dissipation design to improve heat dissipation effect and avoid overheating during braking, ensuring a safe and reliable ride. 5. Adjustment Performance: The rear brake hydraulic caliper has the function of adjusting the clamping force and braking feeling, and the rider can adjust according to different needs and preferences to obtain better braking effect. Specification: Item Type: Rear Brake Caliper OE Number: 1911373, 1911374 Replace OE Number: 1912136, 1912137, 1911944, 1911945, 1912126, 1912127 Fitment: Replacement for Polaris ATV vehicles as follows: Fit for Ranger 500 4X4 2009-2010 Excpet 2x4 Fit for Ranger Crew 570/570-4 2014-2021 Except Crew 570 Full Size, Crew 570-6, Crew XP 570-6 Fit for Ranger 570 Full Size 2015-2020 Except Crew 570 Full Size Fit for Ranger 570 XP 2016 Fit for Ranger 800/800 XP/800 HD 2010-2014 Excpet 800 Crew, 800 6x6, 800 Midsize Fit for Ranger 900/900 XP 2013-2019 Excpet Crew 900, Crew 900-6, Crew XP 900, Crew XP 900-6 Fit for Ranger 900 Diesel 2011-2014 Excpet Crew 900 Diesel Fit for Ranger 1000 XP 2017 Fit for Ranger 1000 Diesel/HST 2015-2017 Except Crew Diesel 1000 Fit for Ranger EV 2014-2021 Fit for RZR 900/XP 900 2011-2014 Except RZR 4 900, RZR XP 4 900 Fit for Brutus 2013-2018 Fit for MRZR2 2013 Fit for Military RZR XP 2014-2019 . Package List: 2 x Rear Brake Caliper Note: Please double check the part number of your item, matching information is for reference only.