This is a A-570K5 Micro-Rib V-Belt (57") PN: 570K5Main Description As Following : A-570K5 Micro-Rib V-Belt (57") P.N: 570K5 5 Rib X 57 K Micro Rib Polyester CordColor: BlackLength: 57Material: Polyester CordMetric Code: 5PK1448Number Of Ribs: 5Outside Length: 57.63"Pitch Length: 57"Thickness: 0.18Type: K Micro RibWidth: 5 Rib Crossed From: K050570 GATES , 25050570 , , 4050570 GOODYEAR , 5PK1445 A & I METRIC BELTS , 5PK1446 A & I METRIC BELTS , 5PK1447 A & I METRIC BELTS , 5PK1448 A & I METRIC BELTS , 5PK1449 A & I METRIC BELTS , 5050570 DAYCO , 87324567 CASE-IH Found in Section & Models : Industrial Belts > K-Poly Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : 5 Rib X 57" K Micro Rib Polyester Cord Color: Black Length: 57" Material: Polyester Cord Metric Code: 5PK1448 Number Of Ribs: 5 Outside Length: 57.63" Pitch Length: 57" Thickness: 0.18" Type: K Micro Rib Width: 5 Rib