water pumps

War Wagon

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water pumps / thermostat

Any such thing as a higher flowing water pump for a 7.3L. I need to replace it along with a new radiator. It always runs hot (210 - 220 empty 70 mph). I would like to cool it down a little. Fan clutch is new and working properly.

Could my thermostat be malfunctioning? Don't know when or if it has been changed. I would thing it would either stick closed and overheat or stick open and build any heat. Anybody ever have one run hot because of a thermostat?
 
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dsltech83

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It could be if the thermostat is not the correct Ford/Motorcraft one. The aftermarkets don't cover the bypass passage completely.
 

dsltech83

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Not sure if anyone makes one, I'd just get a Motorcraft one and stick it in there.
 

dyoung14

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Mine is an aftermarket 180 degrees and i hate it:puke: in the winter its lucky to get to 160 and thats driving forever and you freeze to death, as long as its not getting too hot then i would leave it alone a diesel likes to run warm makes them more efficient
 

dsltech83

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Yeah factory thermostats are awesome especially in the winter, mine (heater)will run you out of the cab.
 

icanfixall

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Only install the factory oem thermostat.. It starts to open at 192 degrees and is fully open at 212 degrees.... I have never seen a hi output waterpump but... Ask at an International dealer parts counter....
 

oldmisterbill

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You might get lucky with an aftermarket thermostat - but it will bite your butt when you need to work the truck (like cruising at 55 :rotflmao). When towing heavy with mine it would often get almost to 220, then the Fan clutch would engage cool it and all would be fine. At first I was bothered by it but it is actually the nature of the stock fan clutch.
 

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