This Detroit Diesel DDE 23520454 OEM Fan Belt Tensioner Assembly is a must-have for any commercial truck owner. It is designed to fit perfectly and provide reliable performance for your engine. The brand is well-known for its quality and durability, making it a top choice for professionals in the industry. The belt tensioner is specifically designed for Detroit Diesel engines and comes with the manufacturer part number 23520454. It is made from high-quality materials and is built to last, ensuring that you get the most out of your investment. Whether you're replacing a worn-out part or upgrading your engine, this fan belt tensioner is the perfect choice.