Compressor Switch, ARB, (180222SP) DAN706527X-HD They are sold as a

They are sold as a pair

and it's cheap

GMC K25 (1975-1978)

You selected the 5/8" hole four link kit

Compressor Switch, ARB, (180222SP) DAN706527X-HD They are sold as aThe Compressor Switch is now available as a complete replacement unit, including both the switch cap and switch base that come with all new Air Lockers and Air Compressors. Additionally, the older incandescent backlit switches have been replaced with a new LED backlit switch and updated design. This upgrade ensures better visibility, improved durability, and a more modern appearance for your ARB Air Compressor system. Specifications Works with ARB air