HFP-PR456 is engineered as a precision replacement, calibrated to deliver 400KPA / 58 psi of pressure, ensuring factory fuel rail specifications are met for your 2017-2021 Ace, 2018-2024 Ranger 150, 2022-2024 RZR 200, 2017-2024 Sportsman 450, and 2017-2024 Sportsman 570 Don't risk expensive component failure; replacing a faulty regulator is the key to maintaining fuel system efficiency and preventing strain that leads to premature burnout of your fuel pump and injectors, especially under demanding off-road conditions Built to match your Polaris' original specifications, this regulator features a precision diaphragm and valve that ensures stable, accurate pressure at all engine speeds for reliable power output This regulator is a direct, drop-in replacement designed for a clean installation; it precisely matches the factory component for quick, headache-free service and immediate performance restoration Get back on the road with confidence – Guaranteed – As a US-based small business, we understand the frustration of downtime and are here to help you get back to your passion. Backed by our lifetime warranty, we stand by our products and our community Replacing a fuel pressure regulator ensures precise fuel delivery, improving throttle response, idling stability, and overall fuel efficiency. Built to OE specifications, this durable regulator handles high pressure and extreme temperatures while resisting wear and vibration. It’s a direct, drop-in replacement that requires no special tools and fits compatible models without modification. Proper installation helps prevent fuel starvation, surging, and hesitation for reliable performance under all conditions. This fuel pressure regulator is compatible with 2017-2021 Polaris Ace, 2018-2024 Ranger 150, 2022-2024 RZR 200, 2017-2024 Sportsman 450, and 2017-2024 Sportsman 570