Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The Moroso coolant expansion tank is a direct-fit replacement for 2008–2013 BMW M3 models (E90, E92, E93), providing an upgraded reservoir for the cooling system. It replaces the OEM expansion tank to manage coolant overflow and recovery during thermal cycles, offering a durable alternative for street or track-driven M3s that need a reliable overflow and fill point during maintenance or cooling upgrades.
Moroso 08-13 BMW M3 (E90/E92/E93) Coolant Expansion Tank
