1)5PK2090 Poly-rib belt 2)Material: EPDM 3)Quality: ISO/TS16949:2002; ... , v-ribbed belt, v ribbed belt, poly-v belt, micro-v belt, PK belt, poly v belt, serpentine belt, automobile belts, engine ... with back bend idlers, e.g. in serpentine drives ACRON Poly-rib belt