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Returns / Warranties


Warranty Policy


Stainless Diesel engineers and manufactures turbochargers and other such products for the diesel and high-performance industry. With validated design, testing and manufacturing to fit the high-performance market.

Stainless Diesel confidently stands behind its product line and believes it, when used appropriately, will live a long successful life. With performance in mind, Stainless Diesel understands hardware will inherently be pushed to the point of failure.

The content included in this has been compiled from a variety of sources and is subject to change without notice, programs, offerings, or technical information described. Stainless Diesel disclaims all warranties, expressed or implied, including without limitation to the warranties of merchantability, fitness for a particular purpose, and non-infringement. Stainless Diesel will not be liable for any special, indirect, or incidental/consequential damages even in the event of Stainless Diesel advising of such possibility of damage.

The possibility exists that materials could include inaccuracies or errors. The possibility also exist that unauthorized additions, deletions, and alterations could be made by third parties to the materials. With that said, Stainless Diesel strives to ensure the upmost integrity and accuracy of its server materials. Before relying on any representation made check with the advertiser of the targeted product to ensure that the information you are reliant upon is correct.

All warranties offered are only applicable to the original purchaser of the product. Any offered and applicable warranties are void once product changes ownership or product is disassembled/tampered with.  Offered and applicable warranties cover defects in parts and workmanship. Warranties do not cover events such as installation error, lack of maintenance, abuse, contamination, lack of using tools (ie. boost gauges) to monitor turbocharger performance, etc. Stainless Diesel will not be liable for towing charges, rental car/trucks, travel/lodging expenses, shop labor, loss of income or any other claims for special, indirect, or consequential damages and losses that may arise under provisions of this warranty.

Turbochargers carry a ONE YEAR, unlimited miles non-transferable, limited parts only replacement. Any turbocharger warranty shall not apply in the condition that it is improperly stored, used in misapplication, used in improper conditions, accidents, or neglect. Damage due to plugged/undersized oil feed and drain lines, thrust bearing/ bushings due to turbo speed/improper turbo load, insufficient/improper oil supply and foreign debris. However, in the event of failure in these conditions, Stainless Diesel will inspect and replace hard parts as needed and such cost will be the responsibility of the customer.

All warranties must be sent to Stainless Diesel with the proper warranty form within the one year of receipt. Stainless Diesel is not responsible for any shipping/delivery charges incurred in the event of a warranty claim. Stainless Diesel will perform a failure analysis to determine the root of failure. If it is determined to be our workmanship or integrity of material used upon original build the turbocharger will be repaired or provided with a replacement in the circumstance that it is irreparable. Any returned turbocharger/components that are on the premises after 14 business days of trying to unsuccessfully contact the purchaser will be considered forfeited.

Changed your mind?

Please be aware that some products have different return time limits and exceptions when you change your mind.  We do not accept change of mind returns on:  polished parts, powder coated parts, welded down pipes, swap kits, twin kits … as, these items are customized specifically for your order only.

We’d like you to be happy with everything you purchase from Stainless Diesel.  Should you change your mind about your purchase, please return the product with your proof of original purchase within 30 days from the day you receive the goods (the cancellation period) and we’ll happily offer a refund.

Stainless Diesel reserves the right to void all warranties in the event of libel, slander, and infringement. Including but not limited to social media networks such as Facebook, Instagram, TikTok etc.

Specific Warranty Information

All order cancellations and returns are subject to a 15% cancellation fee. (credit card processing companies charge fees for processing of the orders, and also separate fees for processing refunds - so this fee is non-negotiable) 

Cores will be refunded / processed within 2-3 weeks of receiving the cores.

The customer is responsible for the return shipping of items back to us.  Shipping to you is non-refundable from the original order.

Used products cannot be returned/refunded.  (Used = that has already been put to the purpose it was intended for; not new )  Product showing visible wear, markings, oil, smut, exhaust.

If returning a POLISHED manifold or turbo:  These items are subject to inspection once returned & if damaged, scratched, or dented due to improper packaging the return is subject to a  touch-up charge of $75. (polishing/powder coat on pipes or elbows are considered - "custom" and are non-refundable)

Any s400 turbo charger purchased through us with, or used with, a T4 .90 A/R exhaust housing and/or a -4 oil feed line is void under our warranty. They are prone to inducing over speed situations and it is not something we cover under our warranty policy (see above).

The following products are considered a competition product and are therefore not covered, or have limited coverage, under our warranty when used in a daily driven application:

-        Any Dodge Cummins drop in turbo (2G HX35, 3G HE351, 4G VGT) sized 67/67 or larger

-        5Blade s485 “Godfather” Turbocharger

-        Any and all Powerstroke or Duramax drop in turbo sized 68/71 or larger

Custom Order Policy / Non-Returnable Items
Special order items are non-cancellable / non-returnable.  Estimated times of arrivals are not guaranteed.

The following items cannot be canceled or returned:

  • Polished/powder coated piping
  • Polished/powder coated turbo covers and housings
  • Polished/powder coated manifolds
  • Welded Downpipes
  • 2G Swap Kits
  • Twin Kits

No returns after 30 days of product receipt.


BELOW YOU WILL FIND THE WARRANTY/RETURN FORM: Please fill it out in its entirety and provide as much detail as possible where applicable.


*Click at the end to print a copy BEFORE you submit the form.