Enhance your watercraft's performance with the Solas Concord Impeller, designed for Polaris models PA-CD-15/21. Crafted from durable stainless steel, this variable pitch impeller boasts a sleek 5.8125" diameter, ensuring a perfect fit for your engine. The concordant pitch of 15/21 delivers unmatched efficiency, catering to both power and maneuverability. This premium Solas drive component is a standout choice for personal watercraft enthusiasts, with a single blade set that promotes smooth acceleration and operation. With free shipping within the lower 48 states and a fast average delivery time of 2-3 days, upgrading your ride has never been easier. Keep your watercraft running at peak performance with this high-quality, reliable impeller.