Are you talking about the two wires that come out of the clutch and connect to the wiring harness of the mower. I have never seen one of those sold separately from the clutch. Most likely cause is most of the time those wires get pulled out, you have no way of reattaching them to the coil inside the clutch housing.
Now if you have the type of clutch that the wiring harness from the mower plugs directly into the clutch those components are available to repair the wiring harness.