Mikuni 3131739 3131640 Throttle Body

The Mikuni throttle body for Polaris Sportsman 500 is a replacement component identified by Mikuni part numbers 3131739 and 3131640. It is designed to be installed as part of the ATV's throttle and air intake system, serving to regulate the amount of air entering the engine in response to throttle input and helping maintain consistent idle and predictable throttle behavior. This throttle body is intended for use during routine maintenance or carburetor service on the Polaris Sportsman 500 to restore proper air metering and overall engine performance that can degrade over time. When ordering, verify that the part numbers 3131739 or 3131640 match your machine's intake configuration to ensure correct fit and operation within the Polaris Sportsman 500. By selecting a Mikuni throttle body with these identifiers, you align with the component specifications associated with this platform and support replacement accuracy for the throttle system.