Idler Pulley Belt Tensioner for 2003-2009 Ford Powerstroke 6.0L
Four Seasons Belt Tensioner is engineered to maintain tension on the serpentine belt for the life of the belt…
Thereby keeping the alternator charging, the water pump running, & the power steering pump and A/C compressor operating properly.
They feature a high-quality double-sealed bearing to resist damage from contaminants.
Replacement prevents belt slip and eliminates squeak, squeal or groaning noise associated with a worn belt tensioner pulley.