Reverse Flare

When you’re replacing sensor ports with rugged durability in mind, our reverse-flare DPF bungs offer the right solution for demanding heavy-duty systems. Based in Des Moines, Iowa, American Radiator supplies precision-engineered reverse-flare DPF bungs built for secure sealing in high-temperature, high-vibration environments across agricultural, trucking, and industrial applications. These fittings are designed with a backward-angled flare that enhances seating integrity for NOx, pressure, and temperature sensors under stress.

If your exhaust system is leaking, sensor readings are erratic, or you’re simply re-fabricating an after-treatment setup, a properly matched reverse-flare weld bung makes all the difference. Our bungs are manufactured from high-strength stainless steel, offered in multiple diameters and thread pitches, and optimized for weld-in installation without compromising fit or flow.

Fleet technicians, independent garages, and equipment owners across the Midwest rely on American Radiator for exhaust-system parts that deliver performance when it matters most. With fast shipping, expert part-matching, and competitive pricing, our reverse-flare DPF bungs provide the durability and precision your system requires—keeping your diesel equipment road-ready through every season.