Water pumps for the Detroit Diesel 3-71 engine are found on this page. In addition to fresh water pumps for the different applications of Detroit Diesel 3-71 engines, you will find water pump repair kits, thermostats and other parts relating to the engine cooling system. All water pumps, water pump repair kits and other parts for Detroit Diesel 3-71 engines ship from stock within 24hrs. We ship worldwide from our facility to your doorstep.