Engine bay close-up of two compressor clutch pulleys, idler pull…

Tight overhead shot of an engine's serpentine belt drive showing two clutch-style compressor pulleys side by side, a smooth idler pulley on a black bracket between them, and the ribbed serpentine belt routing down past a fan pulley. Surrounding castings and hoses are grimy with road dirt and oil film.

AI caption April 2007 · Photo 6 of 407