7220662 | Bosch® Diesel Exhaust Fluid Supply PumpDescription: Diesel Exhaust Fluid Supply Pump Condition: New Brand: Bosch Part Number: 7220662 Weight: 12 lbs Fit for: Bosch, Navistar, International Functions: Def extraction: The pump draws DEF from the DEF tank, pushing it through the DEF lines to the dosing module. Def delivery: The pump delivers the DEF to the dosing module, which is responsible for accurately measuring and injecting the correct amount of DEF into the exhaust stream. Emission