Refund policy
Last updated: October 23, 2026. This revision applies to orders placed after it is published. Earlier orders remain subject to the terms in effect when accepted and any rights required by applicable law.
This Return and Refund Policy applies to purchases from Ironline Diesel LLC ("Ironline Diesel," "we," "us," or "our"). Please review this policy before ordering. Except for the limited circumstances stated below or where applicable law requires otherwise, all sales are final.
Cancellations
Requests must be emailed to support@ironlinediesel.com with the customer's name and order number. For voluntary cancellations, approval must be confirmed by Ironline Diesel in writing. Eligibility is assessed using the order status and work completed when the request is received.
A voluntary cancellation request must be received by 5:00 PM Central Time on the same business day the order was placed and before any portion enters processing or fulfillment, whichever occurs first. Orders placed after 5:00 PM Central Time or on a weekend or U.S. federal holiday are treated as placed on the next business day solely for this request deadline.
An order is not eligible for a voluntary change-of-mind cancellation once any portion has been processed, prepared, allocated, ordered from or submitted to a supplier, shipped, or assigned a shipping label, or once the order-specific tuning processing described below has begun. Processing of one component may make a complete package or bundle ineligible for voluntary cancellation. Order changes are not guaranteed.
Approved voluntary cancellations are subject to the existing cancellation fees:
- Shop Pay Installments purchases: 10% of the merchandise subtotal.
- All other payment methods: 5% of the merchandise subtotal.
The merchandise subtotal excludes sales tax and shipping. Fees are not cumulative. These voluntary-cancellation restrictions, approval requirements and fees do not override a cancellation or refund right required by law, including a qualifying delayed-shipment cancellation. No cancellation fee applies when Ironline Diesel cancels an affected item because it cannot fulfill it.
Use the support email above for prompt handling and a written record. An otherwise legally effective cancellation is not invalid solely because it was communicated through another channel.
Tuning, Digital Products, and Custom Items
The EZ Lynk device and tuning are separate components, even when purchased in one package. The device is physical hardware. Custom tuning is supplied digitally through the EZ Lynk cloud; it does not arrive preloaded on the device. Access requires the supported truck, a compatible device, the required vehicle information and the appropriate technician connection.
Tuning and custom digital work are final sale for change-of-mind requests once documented, order-specific processing begins. This includes submitting the customer’s vehicle information to a technician for the purchased tuning, preparing vehicle-specific files, or purchasing or activating the applicable VIN-specific license or token. Custom-built and special-order items are similarly final sale once their documented preparation or procurement begins, subject to applicable law.
This work may begin before physical hardware arrives. A file does not have to be flashed to the truck for preparation or licensing work to have occurred. Changing plans, choosing another provider, or not using a correctly supplied product does not by itself undo work already completed.
An automated order confirmation, a hardware shipping label, or an Auto Lynk invitation waiting in a queue does not by itself establish that tuning was prepared, licensed or delivered. The relevant processing must be supported by order records; later work is not treated as having occurred before a cancellation request.
Customers must provide accurate vehicle information. If we provide an incorrect file or product because of our error, contact support@ironlinediesel.com. We will correct or replace the affected item, or provide a refund when required by law. These final-sale terms do not remove remedies for a product or service we fail to provide.
Complete Packages and Partial Refunds
A complete setup has its own bundled price. A separately advertised EZ Lynk-and-tuning package, tuning-only product or individual hardware listing is not automatically an itemized breakdown or refund entitlement for a different bundle.
Any component allocation expressly disclosed with the accepted order will be used for an eligible partial refund, subject to applicable law. For an agreed partial refund where the customer keeps hardware, the calculation starts with the amount actually paid for the affected package and subtracts the itemized values of the components retained. Any tuning amount retained under the final-sale provisions above must be identified separately.
The written calculation will use the original order terms, purchase-date prices and applicable discounts, and will account for refundable tax, shipping and previous refunds. Later price increases or the price of another package will not be substituted to reduce a refund. If no allocation or applicable purchase-date price was disclosed or available, a voluntary partial settlement must specify the proposed values and be agreed in writing.
Refunds required by law will be calculated under the applicable rules, including any requirement to refund the difference between the total paid and what the customer would have paid under the original ordering terms for the merchandise actually shipped. This section does not create a right to retain payment for undelivered goods or unprovided services contrary to law.
Missing Hardware and Digital Tuning
A missing or delayed physical component must be reported to support@ironlinediesel.com with the order number and the specific item missing. We will review the shipment for that item and any relevant tuning work separately. One package’s delivery does not establish delivery of every component. Digital files are not physically contained in a missing device shipment.
A hardware issue does not automatically cancel correctly supplied components or documented tuning work. We will assess the affected items, the customer’s ability to access the purchased service, and applicable law before deciding on replacement, correction or refund. Required refunds will not be delayed until a carrier reimburses us.
Courtesy Resolutions
Any additional refund, replacement or other accommodation we offer beyond applicable requirements is specific to that order and does not change this policy for other orders. We may request written acceptance of a voluntary settlement. A refund already required by law is not conditional on accepting an additional settlement, removing a review or giving up a non-waivable right.
Physical Products
Ironline Diesel does not accept returns or exchanges for buyer's remorse, a change of plans, ordering the wrong item, unconfirmed fitment, incomplete or inaccurate information supplied by the customer, or installation or compatibility issues that were not verified before purchase.
A physical product is final sale once it has been installed, used, opened, altered, modified, damaged after delivery, or removed from its original packaging, except for a verified defect or other rights that cannot legally be excluded.
Damaged, Defective, or Incorrect Shipments
Inspect every package promptly after delivery. Claims involving visible shipping damage, missing items, or an incorrect physical product must be emailed to support@ironlinediesel.com within 3 business days after carrier-confirmed delivery. Include the order number, a description of the issue, clear photographs of the product and all packaging, and any other information reasonably requested to investigate the claim.
Do not install, use, alter, discard, or return the product unless Ironline Diesel provides written instructions. Installation or use may prevent us or the manufacturer from verifying the claim.
For a claim we verify, Ironline Diesel will provide an appropriate remedy, which may be repair, replacement, correction, or refund, subject to product availability and applicable law. Ironline Diesel will pay reasonable return shipping for a verified damaged, defective, or incorrect product when we require the product to be returned.
Defects first discovered after the 3-business-day delivery-inspection period may be governed by the applicable manufacturer's warranty. Contact us before sending anything back so we can provide the correct procedure.
The inspection period applies to the package actually delivered, not to a component that has not arrived. Reporting deadlines do not shorten rights that applicable law does not permit us to limit.
Return Authorization and Address
No return will be accepted without prior written authorization. Because products may ship from different facilities, the correct return address will be provided on the written return authorization issued by support@ironlinediesel.com. Do not send a return to the address shown elsewhere on our website unless the return authorization specifically directs you there.
Unauthorized returns, refused deliveries, and items sent to an incorrect address may be refused and may not qualify for a refund. The customer is responsible for unauthorized-return shipping, retrieval costs, and any loss or damage resulting from failure to follow the return instructions.
Approved returns must be shipped by the deadline stated in the return authorization, in the original packaging, with all components, accessories, instructions, and identifying information included. Ironline Diesel is not responsible for a return lost or damaged because the customer failed to package it properly or use a trackable service.
Refund Processing
When a refund is approved, it will be issued to the original payment method. Except when a shorter period is required by law, Ironline Diesel will initiate the refund within 10 business days after cancellation approval or, for an authorized physical return, after the returned product is received and inspected. Financial institutions and installment providers may require additional time to post the credit.
Original shipping charges are non-refundable after shipment unless the refund results from our error, a verified covered issue, or applicable law. If more than 15 business days have passed since Ironline Diesel confirmed that a refund was issued, contact support@ironlinediesel.com.
Costs Not Covered
To the maximum extent permitted by law, Ironline Diesel is not responsible for labor, installation, removal, towing, storage, diagnostics, shop charges, rental vehicles, downtime, lost income, loss of use, or other incidental or consequential costs associated with an order, delay, installation, product, tuning file, fitment issue, or product failure.
Rights Required by Law
Nothing in this policy limits any right or remedy that cannot legally be waived. If Ironline Diesel cannot ship merchandise within the promised time, or within the time otherwise required by applicable law, we will provide any required delay notice and offer the customer the legally required option to consent to the delay or cancel the unshipped merchandise for a prompt full refund without a cancellation fee.
Questions should be sent to support@ironlinediesel.com before ordering.