This is a A-535K6 Micro-Rib V-Belt (53.5") PN: 535K6Main Description As Following : A-535K6 Micro-Rib V-Belt (53.5") P.N: 535K6 6 Rib X 53.5 K Micro Rib Polyester CordColor: BlackLength: 53.5Material: Polyester CordMetric Code: 6PK1359Number Of Ribs: 6Outside Length: 54.13"Pitch Length: 53.5"Thickness: 0.18Type: K Micro RibWidth: 6 Rib Crossed From: GATKO60535 , , GATK060535 , , GAT060535 , , K060535 GATES , 25060535 , , 4060535 GOODYEAR , 5060535 DAYCO , 6PK1356 A & I METRIC BELTS , 6PK1357 A & I METRIC BELTS , 6PK1358 A & I METRIC BELTS , 6PK1359 A & I METRIC BELTS , 6PK1360 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 : 6 Rib X 53.5" K Micro Rib Polyester Cord Color: Black Length: 53.5" Material: Polyester Cord Metric Code: 6PK1359 Number Of Ribs: 6 Outside Length: 54.13" Pitch Length: 53.5" Thickness: 0.18" Type: K Micro Rib Width: 6 Rib