Weak pump will flow the coolant slower making the car run hotter. It's a good idea to replace your old weak pump with a new unit. New Bosch intercooling system electric pump.New Bosch parts in original box. The item "Genuine Bosch supercharger intercooler heat exchanger electric water pump" is in sale since Thursday, April 4, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Turbos, Nitrous, Superchargers\Superchargers & Parts". The seller is "4vpower" and is located in Knoxville, Tennessee. This item can be shipped worldwide.