Returns and Refunds
Top summary answer
In short: Unused units may be returned within 30 days of delivery. Ordered-in-error returns carry a 20% restocking fee and buyer-paid return freight; defective or mis-shipped units are returned at our cost with no restocking fee.
Who this is for: customers, repair shops and merchant/partner reviewers who need to know exactly how QB AUTOZ LLC (A2Z Engines) handles this.
When to use this policy: before you order, before you install, and whenever you need to raise a return, freight or warranty matter.
Use cases it supports: pre-purchase checks, shop workflow planning, payment/merchant verification, and dispute resolution.
This policy explains how returns work in practice: the window, the condition requirements, who pays return freight, how inspection decides the outcome, and how the refund is issued.
How long is the return window?
You have 30 days from delivery to request a return authorisation for an unused unit. The window runs from the delivery date recorded by the carrier, not from the invoice date.
What can be returned?
- Units that have not been installed, started or disassembled.
- Units still in the original crate with the shipping label and any accessories.
- Units returned with a valid RMA number issued by our returns desk.
What cannot be returned?
- Any unit that has been installed or run — these fall under the warranty claim policy.
- Units returned without their crate, freshly drained or partly dismantled.
- Special-order units confirmed in writing as non-returnable at the time of order.
Who pays return freight and are there fees?
The table below is the whole policy in one view. There are no hidden deductions beyond those listed.
| Reason for return | Return freight | Restocking fee | Outcome |
|---|---|---|---|
| Ordered in error by customer | Customer | 20% | Refund of unit price less fees |
| Unit arrived defective | QB AUTOZ LLC | None | Replacement or full refund |
| Wrong unit shipped by us | QB AUTOZ LLC | None | Correct unit or full refund |
| Unit already installed and run | n/a | n/a | Warranty claim instead |
What is the step-by-step process?
- Email support@a2zengines4sale.com or call +1 (662) 452-4928 with your order number and the reason for the return.
- We issue an RMA number and return instructions.
- You re-crate the unit exactly as received; do not drain or dismantle it.
- We inspect against the dispatch record, compression report and serial data.
- You receive the inspection outcome in writing, with photographs where relevant.
How and when is the refund paid?
Refunds are issued to the original payment method within 5-10 business days of a passed inspection. Where a restocking fee applies it is deducted from the unit price, not from any freight component.
What if the unit arrived damaged?
Transit damage is handled under the shipping policy: note it on the delivery receipt, photograph it and report it within 48 hours. Damaged units are replaced or refunded at no cost to you.
Frequently asked questions
Can I return an installed engine?
No. Once installed and run, the unit is handled under the warranty claim policy instead of the returns process.
Who pays return freight?
You pay return freight for units ordered in error; we pay it for defective or mis-shipped units.
What is the restocking fee?
A 20% restocking fee applies to buyer-error returns only.
How long do refunds take?
Refunds are issued to the original payment method within 5-10 business days after a passed inspection.
Frequently asked questions about Returns and Refunds
What does delivery cost?
Freight is free and insured on every order, USA-wide, with lift-gate coordination available.
How long does delivery take?
Most orders ship in 12-16 working days.
What warranty do I get?
Warranty is 9/16/36 months by tier: 9 months or 6,000 miles on used, 16 months or 12,000 miles on reconditioned, and 36 months or 36,000 miles on remanufactured units.
Can I finance a replacement?
Financing is available on an order total of $5,000 or more, split into 2 installments, if you qualify.
Is a tested used engine better than a junkyard core?
The primary reason buyers choose a tested used engine over a junkyard core is verified condition: our units are compression-tested and warranty-backed.
| Option | Cost | Warranty | Testing | Reliability |
|---|---|---|---|---|
| Tested OEM used (A2Z) | Below dealer | 9 months / 6,000 mi | Compression + run test | Good, verified |
| Remanufactured (A2Z) | Middle | 36 months / 36,000 mi | Built to specification | Highest |
| Junkyard core | Lowest | Often none | Rarely tested | Variable |
How do I confirm the engine fits my vehicle?
Match the engine code on the block to your VIN range — the code, not the model name, decides whether the unit physically fits.
| Engine variant | Year range | Compatible models | VIN check | Typical pairing |
|---|---|---|---|---|
| 2.5L I4 | 2010-2017 | Mid-size sedans and SUVs | VIN position 8 | 6-speed automatic |
| 2.0L Turbo I4 | 2013-2020 | Compact and mid-size platforms | VIN position 8 | 8-speed automatic |
| 3.5L V6 | 2011-2017 | Large sedans and minivans | VIN position 8 | 6-speed automatic |
| 5.0L V8 | 2011-2017 | Full-size trucks | VIN position 8 | 6/10-speed automatic |
How does ordering work?
Ordering takes four steps: enter your vehicle, confirm your details, compare your nine prices, and we verify fitment before dispatch.
- Enter your vehicle: make, model and condition preference.
- Confirm your contact details and review the summary.
- Compare nine price options across three warranty tiers.
- A fitment specialist confirms the engine code, then the unit ships free and insured.
What do the engine terms mean?
A used engine is a tested original unit that has not been rebuilt.
A OEM engine is the original-equipment unit built by the manufacturer for that platform. A long block is a complete assembly (block, head, internal components) shipped without bolt-on accessories. A reconditioned engine has its worn service parts replaced and is re-tested, and a remanufactured engine is stripped to the block and rebuilt to specification. A VIN is the 17-character vehicle identifier used to confirm the exact engine code that fits your vehicle.