Don't know anywhere except off a donor harness. It looks like the pump terminals are 1/4 inch wide terminals. One could get a pack of 1/4 inch terminals from the auto parts store and crimp a couple of those on. The packs are around $3.00 and sometimes located near the store section with the fuses.
Where to find washer pump harnes
Any Idea where I can find the side of the harness that connects to the washer pump?? Mine kinda got cooked on the header while my pump was taken off 
(wires hanging down)
App. is a '69 velle, it's a 2 wire clip.
(wires hanging down)App. is a '69 velle, it's a 2 wire clip.
