This is a A-738K12 Micro-Rib V-Belt (73.8") PN: 738K12Main Description As Following : A-738K12 Micro-Rib V-Belt (73.8") P.N: 738K12 12 Rib X 73.8 K Micro Rib Polyester CordColor: BlackLength: 73.8Material: Polyester CordMetric Code: 12PK1 875Number Of Ribs: 12Outside Length: 74.43"Pitch Length: 73.8"Thickness: 0.18Type: K Micro RibWidth: 12 Rib Crossed From: 12PK1875 A & I METRIC BELTS , 25120738 , Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : 12 Rib X 73.8" K Micro Rib Polyester Cord Color: Black Length: 73.8" Material: Polyester Cord Metric Code: 12PK1875 Number Of Ribs: 12 Outside Length: 74.43" Pitch Length: 73.8" Thickness: 0.18" Type: K Micro Rib Width: 12 Rib