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Return Policy


To initiate a return, please email support@mallentechgroup.com for assistance.  You may be asked to provide evidence of your original purchase date and the reasons for the return.

IMPORTANT:  Returns past 30 days are refunded via store credit in the form of a Mallentech Gift Card / E-Gift Card. Mallentech does not issue store credit for the original shipping charges.

All items discounted by 40% or more are considered final sale and cannot be returned for store credit or refunded to the original form of payment.


U.S. Domestic Return Address:

The Mallentech Group

1601 Cranbrook Dr

Troy, MI 48084

ATTN: Return

International - 
Policies vary depending on the country order was placed. Email support@mallentechgroup.com for information on how to return your items back to Mallentech. 

Please be sure to send us your item(s) back in full accordance with our Return Policy:

For returns WITHIN 30 days:

  •   Start your free return process, email support@mallentechgroup.com 
  •   Refunds will be issued to the original form of payment.

For returns AFTER 30 days:

  • Customers must pay for a return label.
  • Refunds are issued via store credit and members are responsible for returning shipping costs.

**All returns are subject to a 15% restocking/disposal fee.
*Because of the nature of our business and products, we are unable to restock or resell any unopened/opened items. Returns are processed within 5-7 days after your items are delivered to us.

Damaged, defective, or incorrect items must be reported via email to support@mallentechgroup.com within 7 days of delivery with picture attached.

**Return drop-offs are NOT accepted at our warehouse.

If you are experiencing a non-delivery or your tracking information states that your package was delivered by the carrier but you have not received it, please allow 3-5 days for delivery due to the delays and/or lack of scanning within delivery carriers for efficiency in this heightened period. If it still has not arrived after 5 days, please contact Mallentech via email support@mallentechgroup within 10 days to file a claim.

Mallentech is not responsible for packages that have been reported stolen, lost or misplaced if carrier marks delivered and is not obligated to issue refund or store credit for these packages.

Mallentech is willing and happy to assist in finding the best solution to get the product to the recipient.

    With limited exceptions, we do not provide prepaid return labels in these instances. Customers are responsible for covering shipping costs to return the items. Returned-to-Sender or Refused packages will be restocked and you will be issued a refund in the original form of payment if the address was entered correctly.

    *no tampering of the address is possible on the label from any in house representative*

    We are unable to make changes to orders once they have been placed in our system.
     To ensure that your package is properly delivered, make sure that your address is entered correctly and includes all relevant information. The use of correct abbreviations, street numbers, building or apartment numbers, and route information (if applicable) are critical to ensuring delivery.

    We do not take responsibility for lost, misplaced, or incorrectly delivered shipments if the address information provided is incorrect at the time of purchase.

    Once a return is initiated and/or your return label has been printed, your items have 7 days to arrive at your local carrier/postal office to send back to our distribution center in Troy, Michigan. If your items do not arrive within that timeframe, Mallentech is within its rights to cancel the return.

    We reserve the right to solely define and limit, refuse, and/or reject returns from customers at any time due to:

    • An irregular or excessive returns history
    • An irregular or excessive returns history involving used, altered, laundered, damaged, or missing items; or
    • Potential fraudulent or criminal activity.

    All items sent to our Warehouse will be discarded upon receipt.

    Because we can't ensure the item required will be available by the time returned items come back to the Distribution Center, except in very limited circumstances, we are unable to accommodate exchanges.

    Should you receive a damaged, defective, or incorrect item, contact our Customer Care team via email support@malentechgroup.com within 7 business days from delivery date. Once we receive your request, we will be in contact with you to address and resolve the issue.


    Depending on the shipping method and carrier selected, your return package may take several weeks to reach us if returning from an international location. Please allow 5-7 business days to process your return once it is delivered to our Distribution Center. 

    Mallentech is not responsible for returns until they reach our Distribution Center in Troy, Michigan. Keep your proof of postage and ship your return along with a tracking number as we are not liable for return packages that are lost or stolen in-transit. Without proof of receipt and delivery, Mallentech is able to refuse issuing store credit for your return. 

    All returns must have EXACTLY what was in the original purchase. Any items missing will cause a fault in the return and is subject to Mallentech’s discretion to process a refund on any kind.

    For all returns for items purchased through a partner or retailer, customers will have to follow the specific return policies for those retailers. 

    Mallentech is not responsible for returns for items purchased outside of our website. Depending on where you acquired your Mallentech products, your return process will be subject to that return policy. Our team may help you track down the policy but is not obligated to help you process the return.

    Members are able to cancel or adjust their order 12-24 hours of ordering as long as it is still pending shipment. Please email support@mallentechgroup.com or call us at +1 248 636 1032  to adjust within the time period.

    The Mallentech Group develops, manufactures, and markets engine management and engine control components.  Products include nitrogen oxide (NOx) sensors, oxygen sensors, and diesel particulate filters (DPFs) for OEM and aftermarket replacement markets.

    Based in Metro Detroit, the Mallentech Group team is proud of its extensive experience in OEM design and deep engineering expertise.  Mallentech is committed to high quality products, world-class service, and innovative solutions for its customers.