Just for the 65-66 Belair / Caprice/ Impala range with factory fitted AC. . not auto 

This is a GM original NOS New in the box old stock. 

Note the mounting points on the switch body.

ONE ONLY - ONE ONLY.

Image is correct.

Note the body mounting points.

Fits US Factory AC Cars..and some light trucks in the 65-66 range.

Note: Blower switch or Resistor failure is most often caused by excessive amperage draw due to excessive blower motor amperage draw.. it should not exced 17 amps..if it does.. replace it before you blow the next switch.