3417550, 3103608, 2864028, 3417629. Fit for Engine: Cummins M11, ISM11, QSM11. Please must make sure your car type same one type of our product link. Please must check our product phot os in the link if same your old part. Please kindly find your part of number depend our photo. The nu mber will appear anywhere in the part. We maintain complete quality control throughout the manufacturing process. Robust design and high-grade materials meet the stringent demands. Meets or exceeds OE specification for fit, finish and function. Stable performance and high reliability. Rigorously Dyno & Road Tested. Original factory specifications, Stable properties, high reliability. Guaranteed Exact Fit for easy installation. Engineered for superior durability. 1 Complete Cylinder Head comes with valves, springs, caps, collets, and stem seals all assembled. We are here to help with any questions or problems you may have. During the working hours, we will reply all your messages promptly. We are off on the weekend, messaged we got on the weekend will be replied on coming Monday. Please do NOT leave negative or neutral feedback without asking for help. We aim to provide Top Level Customer Service, we will try our best to solve the problem for you. Your physical address is required. » Please leave us your full name, your telephone number and detailed address when ordering. » We try our best to pack the products as good and safe as possible, so they always arrive in a good condition. We aim to provide the high quality auto parts and accessories, but some rare cases happened. » If the item fails after installation. If instructions are not available the work should be performed by a licensed mechanic. » If we send you the wrong parts. You may pay a deposit and have a replacement item sent in advance. » We are here to help with any questions or problems you may have. » We aim to provide Top Level Customer Service, we will try our best to solve the problem for you.