Introducing the 3922901 Belt Tensioner Assy, a high-quality engine part designed for excavators such as M923 and M931. Crafted in China by OEM, it ensures optimal performance with a 12-month warranty and rigorous testing. Packaged securely in standard export cartons for safe delivery. Trust our expertise with over 15 years in production and 11 years in foreign trade. Welcome to visit our website for more information!