At Diesel Parts USA, we want you to receive the correct part for your vehicle or equipment. If you need to return an item, please review the policy below.
30-Day Returns
We accept eligible returns within 30 days of delivery.
To qualify for a return, the item must:
- Be unused and uninstalled.
- Be in the same condition in which it was received.
- Include the original packaging, labels, and accessories when applicable.
- Not show signs of installation, modification, damage, or misuse.
- Be accompanied by the original order information or proof of purchase.
Some products may have additional manufacturer-specific return requirements.
Parts That Cannot Be Returned
Certain products may not be eligible for return, including:
- Electrical or electronic components that have been installed or connected.
- Parts that have been installed, modified, altered, or damaged after delivery.
- Special-order or custom-order parts where specifically identified as non-returnable.
- Used, contaminated, or damaged components.
- Products missing original packaging or required components.
- Items returned outside the applicable return period.
If you are unsure whether a part is eligible for return, contact us before sending it back.
Fitment & Compatibility
Because automotive and diesel parts can vary by year, make, model, engine, configuration, and VIN/ESN, customers are responsible for confirming fitment before installation.
If a VIN or engine serial number is requested for a product, please provide the requested information before purchase whenever possible.
If you are unsure whether a part is correct for your vehicle or equipment, contact our support team before ordering.
Incorrect or Damaged Items
If you receive an incorrect, defective, or damaged item, please contact us as soon as possible after delivery.
For damaged shipments, retain the original packaging and shipping materials until the issue has been reviewed. We may request photographs of the product, packaging, shipping label, and damage to assist with the claim.
If the issue is determined to be our error, we will work with you on an appropriate replacement, return, or refund.
Refunds
After your returned item is received and inspected, we will notify you whether your return has been approved or declined.
If approved, the refund will be issued to the original payment method. Processing times may vary depending on your payment provider or financial institution.
Shipping charges are generally non-refundable unless the return is the result of an error on our part or the item was received damaged or defective.
Return Shipping
Unless the return is due to an error on our part, the customer is responsible for return shipping costs.
We recommend using a trackable shipping service for returned items. Diesel Parts USA is not responsible for returns that are lost or damaged while being shipped back to us.
Exchanges
If an eligible item needs to be exchanged, please contact us before returning the product.
Depending on availability, we may provide a replacement or process the return and require a new order for the correct part.
Manufacturer Warranties
Some products are covered by a manufacturer’s warranty. Warranty terms, coverage, and procedures vary by manufacturer and product.
Where applicable, warranty claims may need to be processed according to the manufacturer’s warranty requirements.
How to Start a Return
Before sending any product back, please contact our customer support team with:
- Your order number
- Product name or SKU
- Reason for the return
- Photos, if the item is damaged or defective
Please do not send a return to the manufacturer or to an address other than the return address provided by Diesel Parts USA.
Need Help?
If you have questions about a return, refund, warranty, or product fitment, please contact our customer support team before shipping anything back.