Injector Fuel Supply Tube 3920238 Parts Number 3920238 Parts Name Injector Fuel Supply Tube Brand Cummins Genuine Parts Models 4B3.9 6B5.9 ISF2.8 ISF3.8 QSB3.9 QSB4.5 Related Posts Camshaft C3929039 Oil Pan Gasket 3959052 Aftercooler 4938507 lub oil cooler 3957543 Lub oil pump 5346429