This is a A-570K12 Micro-Rib V-Belt (57") PN: 570K12Main Description As Following : A-570K12 Micro-Rib V-Belt (57") P.N: 570K12 12 Rib X 57 K Micro Rib Polyester CordColor: BlackLength: 57Material: Polyester CordMetric Code: 12PK1448Number Of Ribs: 12Outside Length: 57.63"Pitch Length: 57"Thickness: 0.18Type: K Micro RibWidth: 12 Rib Replaces: A-908400T1 CASE , Crossed From: K120570 GATES , 12PK1447 A & I METRIC BELTS , 4120570 GOODYEAR , 5120570 DAYCO Found in Section & Models : Industrial Belts > K-Poly Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : 12 Rib X 57" K Micro Rib Polyester Cord Color: Black Length: 57" Material: Polyester Cord Metric Code: 12PK1448 Number Of Ribs: 12 Outside Length: 57.63" Pitch Length: 57" Thickness: 0.18" Type: K Micro Rib Width: 12 Rib