Moroso Coolant Expansion Tank | 2015+ Ford Mustang EcoBoost (63806)

Expansion tanks provide a high point in the coolant system where a cushion of air can be present. When the coolant in the system builds up in temperature the fluid expands and creates pressure. When under pressure the cushion of air compresses and provides room for the expanding coolant. Expansion tanks generally should be mounted higher than the engine and radiator to ensure that the engine and radiator are completely filled and the tank itself should only be partially filled to allow for expansion.

• Direct bolt-in replacement to stock 2 piece plastic tank
• Fabricated Aluminum for strength, plastic tanks fail after repeated high heat situations
• This Aluminum tank can be polished, chromed, painted, powder coated or left as is for a race look
• Uses factory stock vented cap, bleeds pressure like the factory intended
• Billet aluminum neck has a built-in overflow like the factory tank
• Integral billet aluminum hose fittings are better looking and more trouble free than screw in fittings
• Direct bolt-in replacement for stock cracked or mis-colored tanks