Is your Polaris running hot or losing coolant? It might just be a worn-out radiator cap! This 13 PSI replacement cap is the exact OEM-style part you need to keep your cooling system sealed and running smoothly. It fits a ton of Polaris models — we’re talking Sportsman 400, 500, 570, 600, 700, 800, plus RZR 800 and 900, ACE 325, Magnum 500, Hawkeye, and even the newer RZR Pro XP and Pro R. If you’ve got a Polaris from 2000 up to 2024, chances are this cap fits. It replaces Polaris part numbers 1240044 and 1240508, so you know it’s the real deal. Easy to install, no special tools needed — just twist off the old one and screw this one on. A good seal means better pressure, which helps prevent overheating and coolant loss. Whether you’re trail riding, working on the farm, or just maintaining your ride, this little cap makes a big difference. Keep your engine cool and your adventures going strong!
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