The Freightliner and Sterling Classic and Accterra Surge Tank, OEM Number A0523063000, is a practical and reliable solution for your truck's cooling system. With its black finish, this surge tank fits most Freightliner Classic and Sterling Acterra models. It is sold individually and is compatible with both OEM and aftermarket numbers A05-23063-000 and A0523063000. Ensure optimal performance and prevent overheating with this high-quality surge tank.