V-belt Dayco BP131

DAYCO BP131 belongs to v-belt, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for BP131 and any equivalents.

The Dayco BP131 is a classical wrapped V-belt with a B profile and a length of 3403.6 mm. Its 17 mm top width, 11 mm height and 40° angle match the standard dimensions of a B-section drive. This page is for maintenance and purchasing teams who need to confirm the belt on the machine before ordering.

To match the belt being replaced, read the marking on the back of the old belt and compare it with the Dayco BP131. The profile must be B, the length must be 3403.6 mm, and the cross-section must measure 17 mm across the top and 11 mm high. The 40° angle is the included angle of the V, so it should sit correctly in the pulley groove.

If the old belt is worn or the marking is unreadable, measure the outside length and the top width with a caliper. A belt that is too narrow or too tall will not seat properly in the groove, and a length that is off will not tension correctly. When several belts run on the same drive, replace them as a set so the load stays even.

For a quote, send the part number BP131, the quantity, and a photo of the old belt marking if you have one. If the exact belt is not what you need, the team can help confirm the right B-profile belt or suggest an equivalent from the data you provide.