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Weld On Radiator Filler Neck Billet Aluminum Opening ID 1 1/4" Overflow
These weld-on filler necks are made of 6061-T6 billet aluminum. This weld-on version can be used wherever a heavy-duty custom application filler neck is required. It includes screw-in 1/16\'\' NPT hose fitting for expansion tanks. It is ideal for all forms of racing and street performance.
Material: 6061-T6 billet aluminum Opening ID: 1-1/4" Breather: 1/16"