Water Bypass Tube 3178320 Parts Number 3178320 Parts Name Water Bypass Tube 3178320 Brand Cummins genuine parts Cummins Models G50, K50, K50-DPM, QSK50 CM2150 K107, QSK50 CM2150 MCRS, QSK50 CM2350 K108, QSK50 CM850 MCRS, QSK50 DF CM850/CM2150 MCRS Related Posts Aftercooler 4938507 Water Pump 3051408 Thermostat – 3076489 Sea Water Pump – 3074540 Fan Idler Assembly – 3635034