This is a A-563K10 Micro-Rib V-Belt (56.3") PN: 563K10Main Description As Following : A-563K10 Micro-Rib V-Belt (56.3") P.N: 563K10 10 Rib X 56.3 K Micro Rib Polyester CordColor: BlackLength: 56.3Material: Polyester CordMetric Code: 10PK1430Number Of Ribs: 10Outside Length: 56.93"Pitch Length: 56.3"Thickness: 0.18Type: K Micro RibWidth: 10 Rib Crossed From: K100563 GATES , 10PK1428 A & I METRIC BELTS , 10PK1429 A & I METRIC BELTS , 10PK1430 A & I METRIC BELTS , 10PK1431 A & I METRIC BELTS , 10PK1432 A & I METRIC BELTS , 4100563 GOODYEAR , 5100563 DAYCO Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : 10 Rib X 56.3" K Micro Rib Polyester Cord Color: Black Length: 56.3" Material: Polyester Cord Metric Code: 10PK1430 Number Of Ribs: 10 Outside Length: 56.93" Pitch Length: 56.3" Thickness: 0.18" Type: K Micro Rib Width: 10 Rib