This ISM & M11 Rocker Lever Cummins # 4003913 Ref. # 3400973, 3068351, 4003905 is a top-quality valvetrain component that is perfect for engines and engine parts. It is designed for use with Cummins brand products and has a manufacturer part number of 4003913. The lever is made from high-quality materials and is built to last, ensuring that you get the most out of your engine. Whether you are a professional mechanic or a DIY enthusiast, this rocker arm is the perfect addition to your toolkit. It is easy to install and provides reliable performance for years to come. So why wait? Order now and experience the benefits of this top-quality valvetrain component for yourself!