xxxJ3 The first 2 or 3 digits of the part nubmer is the belt length 190J3 is 19" Long Belts. The numbers after the J are the number of ribs along the belt width. 190J3 belt has 3 ribs

100J3 Poly-V 3 Rib Belt Black Rubber 10" Long

100J3 Poly-V Belt

100J3 Poly-V 3 Ribs 10" Long Belt Black Rubber Neoprene

Metric P/N 3PJ254

  • Price: $5.80

120J3 Poly-V 3 Rib Belt Black Rubber 12" Long

120J3 Poly-V Belt

120J3 Poly-V 3 Ribs 12" Long Belt Black Rubber Neoprene

Metric P/N 3PJ305

  • Price: $5.80

135J3 Poly-V 3 Rib Belt Black Rubber 13.5" Long

135J3 Poly-V Belt

135J3 Poly-V 3 Rib Belt Black Rubber Neoprene 13.5" Long

 

  • Price: $6.99

147J3 Poly-V 3 Rib Belt Black Rubber 3PJ373

147J3 Poly-V Belt

147J3 Poly-V 3 Rib Belt Black Rubber Neoprene

  • Price: $8.80

240J3 Ribbed PolyV Belt 24" Long Free Shipping

240J3 Ribbed Belt with 4 Ribs

240J3 Ribbed PolyV Belt with 3 Ribs 24" Long, Free Shipping

Metric P/N 3PJ610

  • Price: $11.02

400J3 Poly-V 3 Rib Belt Black Rubber

400J3 Poly-V Belt

400J3 Poly-V 3 Rib Belt Black Rubber Neoprene

  • Price: $8.80

505J3 Poly-V 3 Rib Belt Black Rubber

505J3 Poly-V Belt

505J3 Poly-V 3 Rib Belt Black Rubber Neoprene

  • Price: $8.80