Heavy Duty Heavy Duty Accessory Drive KitsHeavy Duty Accessory Drive Components Heavy Duty Accessory Drive Components Heavy Duty Accessory Drive Pulley Cloyes Heavy Duty Pulleys are built for strength, balance, and lasting durability. With reinforced construction and triple-sealed bearings, they help control vibration and wear in high-stress environments. Ideal for fleet, work, and commercial vehicles. Features & Benefits: High-Durability Spring Technology – Available in both round and flat spring types, made from fatigue-resistant steel for stability and longevity Advanced Bearing System – Enhanced dust and moisture resistance for extended service life Also Included in Every Kit: Hassle-Free Installation – Designed for quick, precise, and frustration-free installs Industry-leading warranty & support and dedicated technical support to ensure hassle-free installation and performance. Heavy Duty Belt Tensioner Designed to handle the constant demands of heavy-duty engines, Cloyes HD Tensioners feature high-fatigue springs, corrosion-resistant coatings, and OE-level fit. With consistent tension and lasting reliability, it’s the tensioner you can trust in even the harshest driving conditions. Features & Benefits: High-durability round or flat spring depending on application Advanced corrosion protection for long-lasting performance Triple-sealed bearings for resistance to dust, water, and wear Built to meet or exceed OE specifications for hassle-free installation Engineered for the Real World. Trusted by Professionals. From daily commutes to demanding conditions, Cloyes Accessory Drive components are built for the real world. With over a century of trusted OE-quality engineering, our solutions are designed to keep engine systems running smoothly, quietly, and reliably. Whether you're replacing individual components or upgrading the entire accessory drive system, Cloyes delivers unmatched performance, longevity, and peace of mind. find my part