
V-belt Dayco 17730
- Brand
- DAYCO
- Category
- Power transmission
- Subcategory
- V-belts
- Series
- Trapezoidal automotor
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Description
DAYCO 17730 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 17730 and any equivalents.
The Dayco 17730 is an automotive V-belt with a 13.46 mm width and an effective length of 1854.2 mm. It is built to a 36° angle, the standard profile for many engine accessory drives. Use the marking on the old belt and the measured length to confirm this is the correct replacement.
Automotive V-belts like this one are commonly used on engine accessory drives, where a single belt turns components such as the alternator, water pump or power steering pump. The 36° angle and 13.46 mm width identify the profile, while the 1854.2 mm effective length sets the fit on the pulleys. If the old belt is worn or the marking is unreadable, measure the effective length and compare it with the data here.
To confirm fit, check the belt marking on the back of the old belt and match it to the part number 17730 or the alias 13A1855. Also measure the width and the effective length. A belt that is too wide or too narrow will not sit correctly in the pulley grooves, and a length that is off will not tension properly. Inspect the pulleys for wear or damage before installing a new belt.
If you are unsure, send us the part number from the old belt, the width and the effective length, and any photos of the drive. Our team can help confirm the right belt or suggest an equivalent. We carry Dayco belts and serve maintenance, engineering and purchasing professionals across the United States, Canada, Mexico and South America. Request a quote by WhatsApp or email with the part number and quantity you need.
Dimensions
- Length
- 1854.2mm
Frequently asked questions
- What is the Dayco 17730 belt used for?
- It is an automotive V-belt for engine accessory drives. The 13.46 mm width and 36° angle fit standard V-groove pulleys, and the 1854.2 mm effective length determines which drives it fits.
- How do I confirm the 17730 is the right belt for my drive?
- Read the marking on the back of the old belt and compare it to 17730 or 13A1855. Also measure the width and effective length. If the old belt is too worn to read, send us the drive details and we can help confirm.
- Can I use a different brand if I find the same size?
- Yes. The key is to match the profile, width and effective length. If you find a belt with a 13.46 mm width and 1854.2 mm effective length, it should fit the same drive. Send us the part number and we can help verify.

