1OE Number: The referencing OE number of this engine coolant expansion tank is 22948113, which is molded and designed depend on the original data. 2Fitment: The water coolant expansion tank is a replacement for Chevy Camaro 2016 and Up, for Cts 20032019, for Ats 20132019. 3Main Function: Keep the engine running within the right temperature range, reduce pressure peaks in the cooling system, and reduce the burden on the engine. 4High Performance: Effectively balance the role of tank pressure, intuitively know the current water volume of the tank, whether it is sufficient. 5Durable Material: Made of Pp material, durable, not easy to damage, stable performance, strong sealing, to ensure long term stable use.