This is a A-537K8 Micro-Rib V-Belt (53.7") PN: 537K8Main Description As Following : A-537K8 Micro-Rib V-Belt (53.7") P.N: 537K8 8 Rib X 53.7 K Micro Rib Polyester CordColor: BlackLength: 53.7Material: Polyester CordMetric Code: 8PK1364Number Of Ribs: 8Outside Length: 54.33"Pitch Length: 53.7"Thickness: 0.18Type: K Micro RibWidth: 8 Rib Replaces: A-J911587 IH , A-47135840 FORD , Crossed From: GATKO80537 , , GATK080537 , , J906384 CASE-IH , K080537 GATES , 1109-5510 , , 25080538 , , 4080537 GOODYEAR , 5080537 DAYCO , 8PK1361 A & I METRIC BELTS , 8PK1362 A & I METRIC BELTS , 8PK1363 A & I METRIC BELTS , 8PK1364 A & I METRIC BELTS , 8PK1365 A & I METRIC BELTS Found in Section & Models : Industrial Belts > K-Poly Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : 8 Rib X 53.7" K Micro Rib Polyester Cord Color: Black Length: 53.7" Material: Polyester Cord Metric Code: 8PK1364 Number Of Ribs: 8 Outside Length: 54.33" Pitch Length: 53.7" Thickness: 0.18" Type: K Micro Rib Width: 8 Rib