The Freightliner Cascadia Surge Tank is a practical and reliable product designed for most Freightliner Cascadia models. Made with durable plastic construction material, this surge tank is sold individually and fits seamlessly into your vehicle. With OEM and aftermarket numbers such as 5593011, A05-25263-005, and more, you can trust in its quality and compatibility. Ensure the smooth operation of your Freightliner Cascadia with this essential component.