Cummins 3393474 Injector Fuel Supply Tube

This injector fuel supply tube (Part Number 3393474) is a genuine Cummins fuel system component designed to deliver high-pressure fuel from the rail to the injector. Manufactured to OEM specifications for dimensional accuracy and material integrity, it ensures reliable fuel metering and combustion efficiency. Compatible with select Cummins diesel engine platforms. Verify fitment via engine serial number (ESN) prior to installation. Constructed from high-strength steel tubing with corrosion-resistant coating. Features precision-formed bends and flared or O-ring seal interfaces per original design. Direct replacement for Cummins OEM part 3393474.