Gabriel82

iTrader: (8)

So I am getting my engine built by Lucky7 soon. Its a Series 5 NA and I am going to street port it. My question is what waterpump should I use? and what thermostat should I use. I have been told to go with the OEM Mazda thermostat from the dealer. What about the water pump does it matter? I will be running a Koyo radiator if that helps in guiding me

clokker

iTrader: (2)

The thermostats my local Mazda dealer carries no longer have a "jiggle pin" and look to just be the same Stant part you'd get at Pep Boys.
I got my last one at NAPA.
A note about NAPA: If you ask for a S5 thermostat, their computer will spit out the totally wrong part #. Ask for a FD thermostat and you get the right one. Be aware that the sealing gasket is a separate piece and must be ordered as well, or you won't get one.

I got my waterpump from Mazdatrix- presumably an OEM part- since I only wanted to replace it once and didn't see the point in saving a few bucks and taking a chance.

JxT

iTrader: (7)

The thermostat I got from the dealer had the jiggle pin and wasn't Stant but Motorad. Dunno if it is any good but seems to work fine so far.

Gabriel82

iTrader: (8)

so Mazdatrix for waterpump and where for the thermostat?
What do you mean about the "jiggle pin" what is that?

nycgps

iTrader: (4)

ITs like a tiny whinny grenade pin looking thing hanging on the Thermostat.

btw, I got a whole brand new Mazda Water pump from Mazda, includes everything like thermostat and stuff. price is ok.

Gabriel82

iTrader: (8)

yeah I called Mazda and they said $20.00 + tax

walken

iTrader: (6)

I've been going to the dealer. they've been beating all mazdatrix prices and it's only a $1 extra to overnight.

go to autozone and get a $90 lifetime warranty pump. they are good and come with both pump and housing gasket. never had a problem with one unless I had to ceramic coat a broken water seal.

Howru

iTrader: (25)

I got a Beck Arnley from Black Dragon Auto with the jiggle pin.