1Part Number: Manufactured according to strict original specifications, Tmap air pressure sensor reference OE number is 3090141. 2Applicable Model: Replacement for Polaris Sportsman Xp 550 2009; Replacement for Polaris Sportsman X2 550 2010; Replacement for Polaris Sportsman X2 550 2011 and more. 3Main Function: The air flow sensor converts the intake air flow into an electrical signal and sends it to the electronic control unit (Ecu). 4Direct Replacement: This air pressure sensor matches the fit and function of the factory part on specified models, is a reliable replacement part. 5Stable Performance: The air flow sensor has high measurement accuracy, wear resistance, high temperature resistance and high reliability.