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By Vibrant

Vibrant Heat Sink Oxygen Sensor Weld Bung T304 SS (M18 x 1.5 Thread)

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SKU: VIB10419
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Vibrant's Bosch LSU 4.9 Heat Sink O2 Bung is designed to prevent premature oxygen sensor failure. The finned surface has been optimized to improve convective cooling, delivering up to 30% cooler O2 Sensor temperatures vs. a standard bung and the coped design makes welding easier.  This bung only fits a Bosch LSU 4.9 Oxygen Sensor.