Which master cylinder kit asco 5/8

[MrYeats]

I want to buy a master cylinder repair kit. My cylinder is stamped Asco 5/8. That translates to 16mm. Does anyone know the right part # and where to acquire one?

 

[XSLeo]

You can buy a new M/C for about the price of a rebuild kit. The one I bought came with an extra rebuild kit.
Shop Ebay. It cam from China but looks almost the same as the stock M/C, so close the stock lever fits right on.
Leo

 

[MrYeats]

It is a shame because all that is bad is the rubber parts. They should make kits with just that. I don't need a spring or plunger, etc...