Under-hood on-board air setup with belt-driven compressor, brass…

Engine-bay detail of an under-hood on-board air system: a belt-driven twin-cylinder air compressor at right feeds a red hose into a white water separator/regulator, which connects through brass fittings and a pressure gauge mounted on a small manifold with a yellow air line. A battery sits at upper left and the plumbing is packed against the radiator support of a dirty, well-used truck.

AI caption April 2007 · Photo 9 of 407