Store Policies
Our commitment to fair and transparent business practices. We stand behind every remanufactured engine we sell with industry-leading warranty coverage and customer-friendly policies.
Warranty Policy
To guarantee the satisfaction of our clients, we provide a comprehensive warranty on all of our remanufactured diesel engines. Our warranty is one of the best in the industry, demonstrating our confidence in the quality of our remanufacturing process.
One Year Unlimited Mileage Warranty
Parts and/or replacement only warranty on all remanufactured engines
Defects in Materials
Coverage for manufacturing defects
Workmanship Issues
Coverage for assembly errors
No Mileage Limit
Drive as much as you need
Nationwide Coverage
Valid across all 50 states
Please contact our customer service team at 631-991-7700 for warranty claims and instructions on how to proceed. Have your invoice number ready when calling.
View Complete Warranty Details →Return Policy
This Return Policy governs US Engine Production acceptance of returns. We want you to be completely satisfied with your purchase, and we've designed our return policy to be fair and straightforward.
With Proof of Purchase
Return or exchange any item with original purchase receipt within 10 days. To qualify as NEW, the item must be:
- •In original condition and packaging
- •Unopened and uninstalled
- •Include all original materials supplied with the item
Return Process
- Contact our customer service team at 631-991-7700
- Obtain a Return Merchandise Authorization (RMA) number
- Ship the item back in its original packaging
- Credit will be issued to the same card used for purchase
Important Conditions
Returns that do not meet these criteria will be denied. Items returned for warranty may be exchanged or refunded at our discretion. Credit will be issued to the same card used for purchase; card must be present at time of return. Third party or outsourced merchandise, including certain Special Order items, Commercial Tools and equipment are subject to a 25% re-stocking fee. Shipping costs are non-refundable.
US Engine Production reserves the right to limit returns or exchanges at any time, for any reason.
Core Return Policy
We offer a flexible core return policy to make your engine replacement as convenient as possible. Returning your old engine core helps us continue providing quality remanufactured engines at competitive prices.
30 Days to Return
Plenty of time to complete your installation
No Upfront Core Fee
Many units require no deposit upon order
Core Requirements
- •Core must be complete and rebuildable
- •No cracked blocks or damaged major components
- •All major components must be present
- •Contact us for specific core requirements for your engine model
Non-Returnable Items
The following items are classified as non-returnable per our Return Policy. Please review this list carefully before making your purchase.
- ×Opened gaskets and seals
- ×Electrical/Electronic components
- ×Clearance merchandise
- ×"AS IS" merchandise
- ×Special order items (25% restocking fee applies)
- ×Fuel pumps and injectors
- ×ECM/ECU modules
- ×Sensors and wiring harnesses
Some parts may be denied return because they share the same categorization as their electrical counterparts. Contact us at 631-991-7700 for specific questions about returns.
Payment & Shipping
Accepted Payment Methods
- All major credit cards (Visa, MasterCard, Amex, Discover)
- Wire transfers
- Company checks (with approval)
- Fleet accounts available
Shipping Information
- Nationwide shipping available
- Freight shipping for engines
- Expedited shipping options
- Local pickup available (Lindenhurst, NY)
Note: Shipping costs are calculated based on destination and engine weight. Contact us for a shipping quote. All pricing subject to change without notice.
Frequently Asked Questions
What is the return policy for remanufactured engines?
You can return or exchange any item with original purchase receipt within 10 days. The item must be in original condition and packaging, unopened and uninstalled, including all original materials supplied with the item.
What warranty do you offer on remanufactured engines?
We offer a One Year Unlimited Mileage Warranty on all remanufactured engines. This is a parts and/or replacement only warranty covering defects in materials and workmanship.
How long do I have to return my core?
You have up to 30 days to return your core. Many units require no up-front core fee upon order. The core must be complete and rebuildable to qualify for the core refund.
What items are non-returnable?
Non-returnable items include opened gaskets, electrical/electronic goods, clearance merchandise, 'AS IS' merchandise, and special order items (which are subject to a 25% restocking fee).
How do I make a warranty claim?
Contact our customer service team at 631-991-7700 for warranty claims. We will provide instructions on how to proceed with your claim, including diagnostic requirements and return shipping information.
Are shipping costs refundable?
No, shipping costs are non-refundable. This applies to both the original shipping charges and any return shipping costs.
What payment methods do you accept?
We accept all major credit cards, wire transfers, and company checks. For returns, credit will be issued to the same card used for purchase; the card must be present at time of return.
Do you offer extended warranty options?
Yes, we offer extended warranty options for additional coverage beyond the standard one-year warranty. Contact our sales team for pricing and details on extended warranty packages.
* All pricing subject to change without notice. Policies effective as of January 2026.
Questions About Our Policies?
Our experienced team is here to help clarify any policy questions you may have. We're committed to making your engine purchase experience as smooth as possible.