Specifically designed for heavy-duty truck, bus and off-road equipment applications.
| Functional Part Number Gives You The Size Of The Belt |
| 4 06 049 5 |
| 1st digit (4) represents a K section Poly V-belt. |
| 2nd and 3rd digit gives the number of ribs. |
| 4th, 5th, and 6th digit are the length in inches. |
| 7th digit is tenth of an inch. |
| Part number 4060495 would be a K section Poly-V belt, six ribs wide, with a length of 49 and 5/10 inches. |