Engine bay close-up of serpentine belt idler pulley next to alte…

Engine-bay close-up of the serpentine belt routed around a smooth idler pulley with a hex-head center bolt, with the alternator at left and a cast aluminum accessory bracket and coolant tube behind it. A hand and a blue-handled tool intrude at the bottom of the frame mid-job.

AI caption January 2011 · Photo 909 of 2193