The vent valve is a potective device that potects the components fom excessive pessue. Wate Pessue elief Valve This valve is mainly used fo high pessue ai pumps fo ventilation Furulu CDI Box Ignition Module Part # 3087169 For Polaris Ranger 500 4x4 6x6 2003 499cc Compatible With:Magnum 500:2002Ranger 500:1999-2003Scrambler 500:1997-2002Sportsman 400:2003-2004Sportsman 500:2002-2004[Replacement Part Number] 160-02120/3087169[Package list] 1pcs 160-02120 CDI Box Ignition Module 499cc Compatible with Magnum 500:2002, Ranger 500:1999-2003, Scrambler 500:1997-2002, Sportsman 400:2003-2004, Sportsman 500:2002-2004 IPO6006 Aazon.co: KIPA Ignition CDI odule Box For Polaris Sportsan 400 500... [Features]Directly replace, High-quality ABS Plastic, durable and long lasting; [Replacement Part Number] 160-02120/3087169 [Year Warranty]12-Months-Warranty,If you have any questions, please contact us via Amazon Message directly. Polaris Sportsman 500 Cdi Box Location New CDI Box Ignition Module For Polaris Magnum 500, 500 HDS 2002-2003 160-02120 Polaris Scrambler Plastic