
Poly-V belt Dayco 5040506
- Brand
- DAYCO
- Category
- Power transmission
- Subcategory
- Poly-V belts
- Series
- Poly V automotor
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Description
DAYCO 5040506 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 5040506 and any equivalents.
The Dayco 5040506 is a 4-rib Poly-V serpentine belt with a 13.72 mm width and an effective length of 1284.99 mm. When replacing a worn serpentine belt, confirm these three dimensions against the belt you are removing. The part number and dimensions give you a direct way to verify the replacement before installation.
Start by reading the marking on the back of the old belt. If it shows 5040506 or 4PK1285, the Dayco 5040506 is the same size. If the marking is worn or missing, measure the old belt: count the ribs and check the effective length and width. A 4-rib belt with a 13.72 mm width and 1284.99 mm effective length matches this Dayco belt.
A serpentine belt that is too long, too short, or has the wrong number of ribs will not sit correctly in the pulley grooves. Compare the rib count first, then the effective length. The 5040506 has 4 ribs and a 1284.99 mm effective length. If your old belt matches those figures, this is the correct replacement size.
For a quote, send the part number 5040506 or the alternate marking 4PK1285, along with the rib count and length if you have them. The team can confirm the belt or suggest an equivalent based on the dimensions you provide.
Dimensions
- Grooves
- 4
- Length
- 1284.99mm
Frequently asked questions
- How do I confirm the Dayco 5040506 fits my drive?
- Check the marking on the old belt. If it reads 5040506 or 4PK1285, it is the same size. Otherwise, count the ribs and measure the effective length and width. This belt has 4 ribs, a 13.72 mm width, and a 1284.99 mm effective length.
- What should I send to get a quote for this belt?
- Send the part number 5040506 or the alternate marking 4PK1285. If you do not have the number, send the rib count, width, and effective length from the old belt.
- Can I use this belt if my old belt has a different part number?
- Only if the dimensions match. The Dayco 5040506 has 4 ribs, a 13.72 mm width, and a 1284.99 mm effective length. Compare those to your old belt. If they match, it is the same size.

