
Poly-V belt Dayco 5040520
- Brand
- DAYCO
- Category
- Power transmission
- Subcategory
- Poly-V belts
- Series
- Poly V automotor
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Description
DAYCO 5040520 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 5040520 and any equivalents.
The Dayco 5040520 is a 4-rib automotive multi-rib (serpentine) belt with an effective length of 1320.8 mm and a width of 13.72 mm. It is also listed under the alias 4PK1320. Use this page to confirm the belt on your drive before you request a quote.
To match this belt to the one being replaced, read the marking on the back of the old belt. If it shows 5040520 or 4PK1320, this is the correct profile and length. You can also count the ribs: this belt has 4 ribs, and the width is 13.72 mm. A belt with a different rib count or a different effective length will not seat correctly on the pulleys.
If the old belt is worn or the marking is unreadable, measure the effective length and compare it to 1320.8 mm. Confirm the rib count is 4 and the width is 13.72 mm. Send the part number, the rib count and the length when you request a quote, and the team will confirm the right belt or suggest an equivalent.
Dimensions
- Grooves
- 4
- Length
- 1320.8mm
Frequently asked questions
- What are the key dimensions of the Dayco 5040520?
- It is a 4-rib belt with an effective length of 1320.8 mm and a width of 13.72 mm.
- How do I confirm this is the belt I need?
- Check the marking on the back of the old belt for 5040520 or 4PK1320. Also confirm the rib count is 4 and the effective length is 1320.8 mm.
- What should I send to request a quote?
- Send the part number 5040520 or the alias 4PK1320, along with the rib count and the effective length from your old belt.

