1、OE Number: The referencing OE number of this complete primary drive clutch are 1322814, 1322953, 1323123, 1323378, 1323377, molded and designed depend on the original data. 2、Fitment: The primary drive clutch is a replacement for Polaris Sportsman 550 EBS 2009‑2014, replacement for Polaris Sportsman 850, for Scrambler 850 2009‑2020 (Fits All Packages). 3、Powerful Performance: The main drive clutch assembly achieves instantaneous clutch through precise rotation, can effectively improve the climbing strength, strengthen braking. 4、Enhance Efficiency: As the heart of the drivetrain, this main drive clutch assembly will keep you in the way of extreme performance, ensure high efficiency operation. 5、Ideal Replacement: Direct replacement installation, meets or exceeds OEM standards for the replacement of old and damaged one on original vehicles.