Ensure optimal engine performance with the Cummins Rear Main Seal for 5.9/6.7 engines. This direct-fit replacement upholds factory specifications and is crafted from high-quality materials for long-lasting durability. Designed to prevent leaks and maintain factory performance, it's the ideal choice for keeping your engine in peak condition. Trust Cummins for reliable, expert-engineered components that ensure your engine runs smoothly and efficiently.