This high-quality Crankshaft Pulley is specifically designed to fit Cummins Diesel Engine M11 QSM ISM. It is made in China and meets all the necessary standards for performance and durability. The Pulley is an essential component of your engine's belt system, ensuring that the belts run smoothly and efficiently. The Pulley's OE/OEM Part Number is 3400877X, and the Manufacturer Part Number is the same. It is an ideal replacement part for your vehicle's worn-out or damaged Crankshaft Pulley. Fits perfectly in Pulleys and Accessory Belts. Get this item now and improve your vehicle's performance.