c72069 ignition swtich

Ordered a ignition switch for our harvester but the switch went bad I am wondering if it went bad because the cyloide and the starter was shot so we had them rebuilt. Do i need a better ignition or just reorder on because the syloid and starter were rusted.bad

A bad solenoid or starter will not damage a properly wired switch.

Things that can damage a switch are:

Melted terminals. If the original switch failed in such a way that the plug or connecting terminals were heat damaged, and the damage was not repaired, the new switch will soon fail because the damaged terminals will not make tight connections, overheat, and ruin the new switch. Very common to see this, especially if heavy current draw accessories, like AC blower motors, are run through the switch.

Improperly wired. This can happen if something on the ignition, accessory, or start circuit has been changed in such a matter that too much current is passed through the switch.

Shorted to ground. If a wire feeding the ignition, accessory, or start circuit is shorted to ground, as in burned against the exhaust, pinched, abraded, mouse chewed, anything that causes the wire to contact any grounded surface, can arc the switch contacts, ruining the switch.

It is possible you got a defective switch, but before installing another, do some investigating. If it is wired wrong, or a problem with the connections, it will only ruin the new switch.