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1/4 inch NPT threaded aluminum bung installed on the radiator to vent out trapped air. | Triumph tr6, Triumph, Chevrolet
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RADIATOR FITTING, ADAPTER, Union, Straight, -20AN O-Ring Male to -20AN Male, Aluminum, incl raw bung, Silver Anodized, Each - PRW Performance
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NORTHERN RADIATOR Radiator Modification Kit, Hose Connections / Weld-In Bung, Aluminum, Natural, LS Swap, Kit – Race Tools Direct
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RADIATOR FITTING, STRAIGHT, -20 AN O-Ring Male to 1.50 in. Hose, Aluminum, Silver Anodized, incl raw bung, Each - PRW Performance
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