
The Weapon R aluminum coolant overflow tank for 2003–2006 Infiniti G35 replaces the factory reservoir with a durable aluminum unit sized for direct fit. It serves as a replacement expansion tank to manage coolant overflow and return within the stock cooling system, offering a service-ready swap that supports routine maintenance while matching the G35’s original mounting and hose interfaces.
Weapon R 03-06 Infinity G35 Aluminum Coolant Overflow Tank