This high-quality rocker arm is the perfect fit for your Cummins diesel engine, specifically the M11, ISM, and QSM models. Designed with durable steel material, it ensures long-lasting performance for your engine's valvetrain components. Manufactured in China, this rocker arm meets the highest standards of quality and reliability. Whether you're a professional mechanic or a DIY enthusiast, this product is the perfect addition to your car or truck parts and accessories. Purchase now and experience the smooth and efficient operation of your engine.