Upgrade your vehicle's performance and reliability with our Heavy Duty Chain Roller Tensioner, a crucial component for maintaining optimal chain tension and ensuring smooth operation. Designed with precision and durability in mind, this tensioner is perfect for a variety of Polaris models. Explore the features that make this product an essential addition to your vehicle maintenance routine: Part Number: Our chain roller tensioner is manufactured to meet strict original specifications, providing a reliable replacement for OEM numbers 0452954 and 0451686. Trust in a product that matches the quality and performance of your vehicle's original components. Applicable Model: This chain tensioner is compatible with a range of Polaris models, including the RZR 170 from 2009 to 2013, the Predator 90 from 2004 to 2006, and the Sportsman 90 from 2004 to 2014, among others. Ensure your vehicle is listed to achieve a precise fit and optimal performance. Main Function: Featuring a heavy-duty design, this chain tensioner idler is equipped with a torsion spring that automatically adjusts to chain elongation. This functionality helps maintain consistent tension, reducing wear and prolonging the life of your chain system. Durable Construction: Crafted from high-quality metal alloy, this chain tensioner undergoes a die-casting process for maximum structural integrity. Advanced CNC cutting technology ensures precise machining, delivering a product that withstands the rigors of various riding conditions. Easy Installation: Designed for hassle-free installation, this chain tensioner turns smoothly, enhancing longevity. It effectively protects the swing arm and ensures proper chain guidance, contributing to a safer and more efficient riding experience. Invest in the reliability and performance of your Polaris vehicle with our Heavy Duty Chain Roller Tensioner. Its robust construction and automatic adjustment capabilities make it an essential upgrade for maintaining your vehicle's chain system. Order now to experience enhanced durability and seamless operation on every ride.