Poly-V belt Dayco 5040450

DAYCO 5040450 belongs to poly-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 5040450 and any equivalents.

The Dayco 5040450 is a 4-rib automotive multi-rib (serpentine) belt with an effective length of 1145.03 mm. This page covers how to match it to the belt you are replacing.

Start with the belt on the drive. Read the marking on the back: the part number and the rib count. The 5040450 has 4 ribs and a width of 13.72 mm. If the old belt is worn or the marking is gone, measure the effective length. The 5040450 is 1145.03 mm. Confirm the rib count matches the pulley grooves. A 4-rib belt will not seat correctly on a pulley with a different number of grooves.

Check the profile. This is a multi-rib belt with 4 ribs. The ribs must match the pulley grooves. If the old belt has a different number of ribs, the 5040450 is not the correct replacement. Also confirm the effective length. The 1145.03 mm length is measured along the effective line of the belt. If the old belt is a different length, the tensioner may not take up the difference.

When you have the part number and rib count from the old belt, send them for a quote. If the old belt is not readable, send the vehicle make, model, year and engine, or send a photo of the belt and pulleys. We can confirm the 5040450 or suggest an equivalent.