SpeedFactory Radiator Filler Neck An16 Outlet GSR Fujitsubo like its high-pressure Radiator Caps

like its high-pressure Radiator Caps

The knock sensor is an extremely important sensor in keeping your Honda K-Series engine in running as sweet as intended

Manufactured in Resin (PVC)

Genuine Nissan front lower

Easy to install

SpeedFactory Radiator Filler Neck An16 Outlet GSR Fujitsubo like its high-pressure Radiator CapsWhether 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