The Rolling Lobe Air Spring - AS9921 is a versatile and reliable replacement for various OE numbers, including Automann AB1DK23P-9921, ContiTech 64402, and Firestone W01-358-9921. This air spring is designed to fit miscellaneous OE parts, as indicated in the table above, and is sold individually. With its durable construction and precise dimensions, this air spring offers a practical solution for a wide range of applications. For a dependable and high-quality replacement part, the Rolling Lobe Air Spring - AS9921 is an excellent choice.