Product Description for Cylinder Head Alignment Pin Set Ensure precise alignment and optimal engine performance with our Cylinder Head Alignment Pin Set. Specifically designed for Cummins engines, this set is essential for maintaining the integrity and efficiency of your engine. Discover the features that make this alignment pin set a crucial addition to your engine maintenance toolkit: Wide Compatibility: This cylinder head alignment pin set is designed as a replacement for Cummins 5.9L and 6.7L engines from 1989 to 2019. It offers a precise fit for these engines, ensuring reliable performance and easy installation. OE Number Reference: The replacement part number for these alignment dowels is 3902343. Please verify that this OE number matches the part you are replacing to ensure compatibility and a perfect fit. Essential Functionality: These alignment pins ensure accurate positioning between the cylinder block and cylinder head, preventing water and oil leaks caused by gasket misalignment. They are vital for maintaining engine efficiency and preventing potential damage. Durable Material: Made from high-strength metal alloy, these dowel pins are resistant to high temperatures and wear. Their robust construction prevents deformation and damage, ensuring durability and long-lasting performance. Reliable Performance: Featuring a compact structure and high precision, these pins are professionally manufactured to provide stable characteristics. They are an ideal replacement for worn or damaged components, ensuring consistent and reliable engine performance. Upgrade your engine maintenance with our Cylinder Head Alignment Pin Set, offering durability, precision, and reliable functionality. Whether you're a professional mechanic or an automotive enthusiast, this set provides the quality and assurance needed for effective engine repairs and maintenance. Choose a product that guarantees accurate alignment and optimal engine performance.