Genuine Volvo D13 Belt Tensioner | PN 21714847

You have 30 calendar days to return an item from the date you received it. To be eligible for return all parts must meet the following conditions:
• The item must be new, unused, and uninstalled;
• The product must be in salable condition, with no signs of installation (e.g., grease, scratches, or missing components);
• Original packaging is required, especially for branded parts;
• Any item that has been installed, modified, or misused is not eligible for return;
• Unacceptable returns may be shipped back to the customer upon request, at the customer's expense;
• Your item needs to have the receipt or proof of purchase.
We have a Restocking Fee which applies for return items with damaged package. Restocking Fee is 25%-50% of initial purchase.
• Do not tape the original packaging box — Restocking Fee will apply;
• Do not stick any shipping label/sticker on the original packaging box — Restocking Fee will apply;
• We recommend using stretch film to wrap the original packaging box. Use an additional shipping box or envelope to return the item.
You will be responsible for paying your own shipping costs for returning your item. Shipping costs are nonrefundable.

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The belt tensioner maintains correct tension on the accessory drive belt, ensuring reliable operation of the alternator, AC compressor, and water pump. A worn tensioner causes belt slippage, squealing, premature belt wear, and in severe cases, complete belt failure. Genuine Volvo part — engineered and approved by Volvo. Factory-specification component.

Q: Which trucks does this belt tensioner fit?
A: Fits Volvo D13 engines, Volvo VNL trucks. Verify your specific model and year before ordering. Contact us with your VIN for fitment confirmation.

Q: When should the belt tensioner be replaced?
A: Replace at manufacturer-recommended service intervals or at first sign of failure symptoms. Refer to your truck maintenance schedule.

Q: Is this OEM or aftermarket quality?
A: Genuine Volvo part — engineered and approved by Volvo. Factory-specification component.

Q: What happens if the belt tensioner fails?
A: Yes. Failure of this component can cause damage to connected systems and engine components. Replace at first sign of issues.

Q: What is included?
A: Complete VOLVO assembly, ready for installation. All necessary hardware and seals included where applicable.