1970 5 port washer pump piston

[Bill B.]

I need a piston for a 5 port washer pump for a 1970. I'd buy the pump as long as the piston is ok; anyone have one?
Bill Braga

[Pat M.]

Re: 1970 5 port washer pump piston

Bill, in rebuilding several 5 ports the original piston (plastic head and metal shaft) appears to me to be configured the same as other GM 3 ports of that era, and even new GM 3 ports still sold today. I've never actually tried it, but I think you could use any of these similar pistions in your 5 port. I've seen many similar era pumps in great shape in junk yards that you can buy for next to nothing.

[Bill B.]

Re: 1970 5 port washer pump piston

I didnt know that Pat, i"ll look into that further. Thanks...
Bill