1x Gates Belt Tensioner, v-ribbed belt (T39157). 1x Gates Belt Tensioner, v-ribbed belt (T39145). 1x Gates V-Ribbed Belt (5PK890). 1x Gates V-Ribbed Belt (5PK848). Headquartered in Denver, Colorado, Gates employs over 14,000 people across 106 locations in 30 countries.