SpeedFactory Racing Upper Coolant Radiator Filler Neck -16AN Outlet Civic B16A Integra Type R B18C5

Whether you have a custom radiator or a SpeedFactory Race/Tucked radiator, you need a proper way to fill your engine's cooling system from the highest point- and we have the solution.

SpeedFactory Racing B-Series Upper Coolant Fill Necks are compatible with most aftermarket radiator setups, and change the high point of your cooling system for easy filling and system air bleeding. Our necks are manufactured in-house using high quality aluminum materials and feature laser-cut head flanges to ensure a perfect fit every time.

SpeedFactory Racing B-Series Upper Coolant Fill Neck for Honda Civic B16A / Acura Integra Type R B18C5 cylinder heads in -16AN configuration.

Radiator caps sold separately.