Ensure optimal performance and precise fuel delivery for your Yanmar marine or industrial engine with the genuine YANMAR 146623-51300 Delivery Valve Assembly. Engineered specifically for the 6EY18L engine series, this premium valve component (Valve CMP, Delivery) is critical for maintaining correct fuel system pressure and preventing backflow. Each package contains a complete, ready-to-install assembly that includes a heavy-duty spring and a high-quality O-ring seal to guarantee a secure, leak-free fit. Manufactured in Japan to Yanmar’s uncompromising OEM standards, this genuine part delivers exceptional durability, exact fitment, and the long-lasting reliability required for heavy-duty engine operations.