I plan to use a stock aux water pump on my air/water intercooler which will require it to run when ever the car is on. Will this be too hard on the pump?

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine