Returns Policy

Diesel Electronic Supply accepts returns or exchanges of unused and undamaged products in their original packaging within 7 days of delivery.

Original shipping charges are non-refundable. Customers are responsible for all return shipping costs, and return shipping labels are not provided. A 25% restocking fee applies to returned items.

Wire Harness Repair Kits & Custom-Cut Products: Custom-cut wire lengths, custom wire harnesses, pigtails, and other made-to-order products are not eligible for returns, exchanges, or refunds.

To start a return or exchange, please contact us with your order number at support@dieselelectronicsupply.com. We will provide return instructions and shipping details.

Warranty Terms

1. Diesel Electronic Supply warrants its wiring harnesses and custom cables to be free from defects in materials and workmanship for a period of 6 months from the date of purchase (“Warranty Period”). This warranty applies only to products stored, installed, handled, operated, and used under normal conditions.
2. All warranties are provided by Diesel Electronic Supply and are non-transferable without prior written consent.
3. To make a warranty claim during the Warranty Period, email support@dieselelectronicsupply.com with your order number, a detailed description of the problem, and any requested photos or supporting information.
4. Freight, shipping, and rush fees associated with products returned under a warranty claim are the responsibility of the customer unless otherwise agreed to by Diesel Electronic Supply or required by applicable law.
5. Diesel Electronic Supply's warranty obligation is limited to the repair or replacement, at our discretion, of a product or component determined to have a covered defect. If Diesel Electronic Supply determines that the product cannot be repaired or replaced after three repair attempts, a full refund of the affected product purchase price will be issued.
6. Warranty claims must be submitted before the end of the Warranty Period. If the product is required to be returned for inspection, return instructions will be provided.
7. Invalidated warranties may be subject to a minimum $350 charge. Any applicable charge will be communicated before non-warranty repair work is performed.
8. To the fullest extent permitted by applicable law, Diesel Electronic Supply's liability will not exceed the amount paid for the affected product. Diesel Electronic Supply will not be liable for special, consequential, incidental, or indirect damages, including lost profits, lost revenue, labor costs, towing charges, vehicle or equipment downtime, or loss of use.
9. Warranty coverage does not apply to products that fail or become damaged because of operation beyond rated capabilities, misuse, abuse, tampering, modification, improper installation, incorrect wiring, improper setup or storage, neglect, contamination, corrosion, water or other fluid damage, accidents, acts of nature, or other circumstances outside the reasonable control of Diesel Electronic Supply.
10. All custom wire harnesses, custom-cut wire, and wire harness repair kits (pigtails) made or cut to order cannot be returned, exchanged, or refunded, except where required by applicable law or when the product qualifies for warranty coverage.
11. Wire colors may vary. Wire color differences alone do not indicate that a product is defective or incorrect. Customers should verify cavity position, terminal type, connector configuration, and application before installation.

Shipping Policy

Processing Time: Orders are typically processed within 1–5 business days after payment confirmation, depending on order volume and product availability. Processing times may vary during peak periods or for custom-made products.

Shipping Methods: We offer available standard and expedited shipping options. Shipping costs and estimated delivery times are calculated at checkout based on the destination and selected shipping method.

Shipping Address: Customers are responsible for providing a complete and accurate shipping address when placing an order. Please verify your shipping information before completing your purchase.

Shipping Confirmation & Tracking: Once your order has shipped, you will receive a shipping confirmation email containing available tracking information.

Shipping Delays: Carrier delays may occur because of weather, service disruptions, customs, holidays, or other circumstances outside our reasonable control. Delivery dates provided by shipping carriers are estimates unless otherwise expressly guaranteed by the carrier.

Shipping Rates: Available shipping rates are calculated at checkout based on the order, destination, and selected shipping service.

International Shipping: International shipments may be subject to customs duties, import taxes, brokerage fees, or other charges imposed by the destination country. Unless otherwise stated, these charges are the customer's responsibility and are not included in the product price or shipping charge.

Lost or Stolen Packages: Diesel Electronic Supply is not responsible for packages that a shipping carrier confirms as delivered to the shipping address provided with the order, except where otherwise required by applicable law. If you experience a delivery problem, contact us and we will assist with available carrier information.

Incorrect or Incomplete Addresses: If a package is returned because the customer provided an incorrect or incomplete shipping address, the customer may be responsible for additional shipping charges before the order can be shipped again.

Questions About Your Shipment:
Contact Diesel Electronic Supply at support@dieselelectronicsupply.com for assistance with an order or shipment.