Which Replacement Water Pump

[Uwon]

Time for me  to plan for the second water pump replacement. I note that there are several choices from Laso @ $188, to Pierburg @ $248 to Porsche @ $403 per Peliccan Parts. Anybody have any experience Laso and Pierburg? 

Johan

[Ahsai]

A genuine water pump from Sunset is $323 + shipping https://www.sunsetporscheparts.com/oem-parts/porsche-water-pump-99710601106/?c=Zz1jb29saW5nLXN5c3RlbSZzPXdhdGVyLXB1bXAmaT02OTMzNTgwNSZyPTEmYT1wb3JzY2hlJm89OTExJnk9MjAwNiZ0PWNhcnJlcmEtcyZlPTMtOGwtaDYtZ2Fz

 

I believe the pump is made by Pierburg so that may not be a bad option.

[jchapura]

About 14000 miles ago (~17 months) I replaced the seemingly original water pump with a Pierburg (remember to replace the 7 mounting bolts).

 

I did change to a low temperature thermostat at the same time. (I bench tested the temperature-at-open values and temperature-at-full-open values because I found two seemingly defective ones.)

 

After it was all buttoned-up, in hot weather, the incidents of oil temperature spiking increased. (Normal cruising 100F ambient, yielded 200F oil temp; spiking meant to me elevated RPMs 4k+ for just a dozen seconds or so, took me to 220F oil temp; and I would say the oil temp did not recover quickly or at all some times.) Since I was pretty sure I had a good thermostat, the only other thing I think it could be is coolant flow (meaning it was the same potentially dirty radiators before and after, for these observations). The Pierburg just didn't seem to flow the needed amount of water when the system needed it the most.

 

[Later that summer, I did take off the front bumper cover to clean the condenser and radiators - no change in "spiking" incidences.]

 

So, when I change it again (~40000 miles), I will probably be going with the genuine Porsche pump.

 

[wizard]

For something as critical as a water pump, you should go with the genuine Porsche part. 

Edited September 15, 2017 by wizard