Returns and warranty
Our 30-day return window, which items cannot be returned, and how warranty claims are handled.
Last updated August 1, 2026
30-day return window
Unused parts in their original, unopened packaging may be returned within 30 days of delivery for a refund or exchange. Contact us first so we can issue a return authorization and tell you where to send it.
Returned items are inspected on arrival. Parts showing installation marks, torque witness marks, fuel exposure, or missing hardware may be subject to a restocking fee or declined, depending on the manufacturer's policy.
Items that cannot be returned
These exclusions exist because the manufacturer will not accept them back — not because we are trying to keep your money. If you are unsure whether an item qualifies, ask before ordering.
- Calibration licenses and tuners with a registered or transferred license.
- Electrical components that have been connected or powered.
- Special-order and drop-ship items ordered specifically for your build.
- Fluids, filters, and chemicals once opened.
- Custom or modified parts.
How to start a return
- Email Sunstatediesel@gmail.com with your order number and the reason for the return.
- We respond with a return authorization and shipping instructions.
- Pack the item in its original packaging and include the authorization inside the box.
- Refunds are issued to the original payment method within 5–7 business days of inspection.
Warranty claims
Warranty coverage is set by the manufacturer, and the terms differ by product. We list the applicable warranty on each product page so there are no surprises.
To file a claim, contact us with your order number, the vehicle details, the symptom, and any supporting photos or diagnostic data. In most cases we handle the claim with the manufacturer directly and you only deal with us.
Labor for warranty replacement is not covered unless the manufacturer provides it. Diagnosis time at our shop is billed separately unless the failed part was installed by us.
Wrong part shipped
If we ship the wrong part, that is on us. We cover return shipping, send the correct item immediately, and expedite it where the carrier allows. Contact us and we will fix it without an argument.
This policy is written in plain language on purpose. If any part of it is unclear, call the shop at (407) 454-4772 and we will explain it in words that make sense.