Check out the "Wiring Diagrams" page at www.searstractor.com also you can buy three keys in a package at sears for $5. Almost all garden tractors use the same key, except for John Deere

I have a couple from a broken switch off my '66 sub 10 hp. your welcome to them as ive contacted cole switch and theres no replacement made for the factory unit which did not require a solenoid.