【Ignition Switch for Polaris】OEM Part Number: 4012166 4011142 Off/Run/Light On/Start 6 PIN 4 Position. Difference between 4 and 3 position: 4 position has one more position than the 3 position, which is used to switch the headlights. 3 position can't control headlight! 【4 Position OFF/RUN/LIGHT ON/SPRING RETURN START】6 Pins key switch 4 position(Off/Run/Light On/Spring Return Start), comes with 2 Keys. Please Verify Status and Match OEM Code before purchasing. 【Premium Quality】The ignition switch is made of high-performance ABS and high-quality brass, with safety, durability and excellent conductivity. 【Easy to install】Direct replacement, simple plug and play, no wiring required. Meet or exceed OEM standards, 100% testing before shipment. 【Compatibility】Compatible with Polaris Ranger 400 500 570 800 RZR 4 800 570 Scrambler Sportsman 550 500 SE XP ACE 325 570 900 Outlaw 100 ATV. Ignition Key Switch for Polaris Ranger 400 500 570 800 4x4 Crew RZR 4 800 570 Scrambler Sportsman 550 500 SE XP ACE 570 900 ATV Replace OEM # 4012166 4011142 Off/Run/Light On/Start 6 PIN 4 Position