121.33 in Heavy Duty Serpentine Belt for Ford F-250 F-350 F-450 Super Duty 7.3L

Item Type: Serpentine Belt. Feature: Heavy duty belt provides longer life compared to standard belt. • 2002-2003 Ford Excursion V8 7.3L -With 121.3" Belt Outside Circumference. • 1999-2000 Ford E-450 Econoline Super Duty V8 7.3L - With Single Alternator.