Replacement parts for 17 year old Kinko windows

This looks like either a Series 380 or Series 385 channel balance. The only difference between these two balances is the depth of the bottom nylon shoe, so compare both with your old hardware to see what matches best. To know what length to select, measure the metal channel, but do not include the nylon fittings in that measurement. To know what stamp option to select, look for a stamp code on the metal channel. If there is none or you are uncertain, obtain the exact weight of your window sash. You can then match that exact weight with one of the weight ranges listed alongside each stamp option on the product page.

For the Top Sash Guide, see if our 18-166 matches what you need.