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Radiator Filler Necks

Radiator Filler Necks are machined from billet 6061 aluminum, and available in two common sizes. Each Radiator Filler Neck features a two-piece threaded design, ensuring a secure and reliable fit.

Weld On Radiator Filler Neck - Large (1.650" ID, 1.092" Outlet) - 6061 Aluminum

Weld On Radiator Filler Neck - Large (1.650" ID, 1.092" Outlet) - 6061 Aluminum
Weld On Radiator Filler Neck - Small (1.250" ID, 0.750" Outlet) - 6061 Aluminum

Weld On Radiator Filler Neck - Small (1.250" ID, 0.750" Outlet) - 6061 Aluminum