1966 4000 351 water pump

[animalsservicar]

howdy folks . I have a 66 4000 with a 351 V6 & I'm having one heck of a time findina a water pump . does anyone have a part # for Napa or someone else that I can have my NAPA try to cross ?
thanks
animal

[LEWISMATKIN]

does this truck have air brakes or hydraulic brakes? If air brakes, then ebay has a rebuilt pump. If hydraulic brakes, then it takes the same pump as the 305. NAPA offers a rebuilt pump p/n 58-160. I hope this helps you.

[animalsservicar]

OK , I have hydraulic brakes , thank you very much
animal

[animalsservicar]

would the 1/2 - 1 ton trucks with the V6 use the same water pump ?
My Napa has been striking out .
thinking if I can broaden the range they may have better luck
thanks
animal

[sclor]

Animal:
Summit lists one online here:

https://www.summitracing.com/parts/gmb-130-2835/overview?filters=year%2F1966%2Fmake%2Fgmc%2Fmodel% 2F1000%2F

Yours should be the same as small trucks based on Lewis' advice.

Hope this helps.
Regards
Steve
New Orleans

[LEWISMATKIN]

if i needed one, at the price listed, I'd buy 2!!!

[animalsservicar]

thanks for the Summit link . I couldn't get their search to work yesterday or this AM . I found one at Orileys , will post their part # after I compare it to mine
thanks
animal

[BobBray]

There are basically 2 water pumps for the V-6's, one has a threaded shaft and the other has a flange with 4 threaded holes. It is true that most of the time V-6's with air brakes use the pump with the threaded shaft, but be advised I have seen V-6's with air brakes that used the pump with the flange.

[animalsservicar]

OK the water pump # from Oreilly is B302835 & as yesterday price @ 45.99
I also bought a 2"x 24 GAtes #26512 flex/universal upper radiator hose& that cost me $52.00 & some change . just about hit the floor when they range the hose up , guess it's been some time since I have bought a universal hose.
thanks again
animal

[sclor]

Animal:
Looked up the same hose on rock auto.com. They show it for $22.79. O'Reilly was out of line on that one...
Regards
Steve
New Orleans

https://www.rockauto.com/en/parts/gates,26512,radiator+upper+hose,2058

[turbobill]

There are basically 2 water pumps for the V-6's, one has a threaded shaft and the other has a flange with 4 threaded holes. It is true that most of the time V-6's with air brakes use the pump with the threaded shaft, but be advised I have seen V-6's with air brakes that used the pump with the flange.

Actually three.

The Toro Flow uses a larger hub pilot diameter. I had to borrow the water pump off my Toro Flow for my 478M in my dump truck.