01
Step 1
Final Quality Checks
Visual & performance inspection on your exact unit.
Engine Warranty
DOC / APS-WARRANTY-ENG-2026 · Sec. 01–08
In Force
Auto Power Source · Legal & Coverage Notice
The Engine Warranty.
Protected · VIN-Matched · Pro-Inspected · 1–6 Month Coverage
We stand by our used engines. Each one comes with a simple, clear warranty to give you peace of mind from the moment you order — and you see HD photos of your exact engine before it ever ships.
Article I · Coverage Duration
How long is the warranty?
Coverage length depends on the engine's manufacturing era — newer engines carry longer warranties because their components have aged less. Longer terms — up to three years — are available as a paid add-on on vehicles from 2005 onward.
Tier 01
Made in 1990 or earlier:
1
Month
Tier 02
Made from 1991 to 2000:
3
Months
Tier 03
Made from 2001 to 2025:
6
Months
Optional · Extended
2005 and newer, added before dispatch — up to
3
Years
Tier assignment is determined by the engine's model year. Longer terms are available only as a purchased add-on, on vehicles from 2005 onward — see Extended Coverage below. The warranty term stated on your invoice controls. Coverage begins on the date of purchase and is parts-only: replacement of the covered unit, with labor, towing, rental, storage, and fluid costs excluded unless a labor protection plan was purchased in writing.
Optional Add-On · Extended Coverage
Keep the cover running longer.
Your engine already carries a standard warranty set by its model year. If you want longer, you can add an extended term any time before your unit is dispatched. The term you buy is your total coverage from the date of purchase — it does not stack on top of the standard warranty. A one-year extended plan means one year in total, not one year on top of your six months.
| Total coverage from date of purchase | One-time cost |
|---|---|
| 1 Year | 15% of the engine price |
| 2 Years | 25% of the engine price |
| 3 Years | 35% of the engine price |
Available on vehicles from 2005 onward. Extended coverage is added to your order before the unit ships, so you see the exact figure before you commit. Once the unit is on a truck it can no longer be added. The warranty term stated on your invoice controls.
What changes
One thing only: how long the cover lasts.
- The same parts-only replacement cover as the standard warranty
- The same covered components — internally lubricated and internally driven parts of the unit
- Coverage still begins on the date of purchase, not the date of installation
What does not change
Extended coverage buys time. It does not widen the boundary or soften a void condition.
- Still parts-only — labor, towing, rental, storage and fluids stay excluded unless a labor protection plan was purchased in writing
- Bolt-on accessories remain free courtesy items and stay outside the warranty
- Heat tabs still govern. An overheated engine is outside cover for the whole term, however long that term is
- The water pump must still be replaced with a new one at installation
Optional Add-On · Labor Coverage
Cover the labor, not just the part.
Your warranty replaces the unit. It does not pay your shop. Labor coverage is a separate, optional plan you buy once, before the engine ships — and you choose the amount, so it matches the job your shop has actually quoted rather than some figure we picked for you. If a covered failure is confirmed, that amount is paid toward your installation labor.
| Labor covered on an approved claim | Your one-time cost |
|---|---|
| $250 | $50 |
| $500 | $100 |
| $1,000 | $200 |
| $1,500 | $300 |
| $2,000 | $400 |
| $2,500 | $500 |
Choose your tier before dispatch. Labor coverage cannot be added once the unit has shipped, and never after a fault has appeared. The figure you pick is a fixed cap paid once against a documented labor invoice — it is not an hourly rate and it is not open-ended.
What it covers
Labor coverage follows the same boundary as the warranty itself: the internal failure of the unit we supplied.
- Internally lubricated and internally driven components inside the unit
- The head gasket is the one gasket included — no other gasket or seal falls inside labor coverage
- Bolt-on accessories, sensors, belts, hoses, brackets and manifolds stay outside it, exactly as they do under the parts warranty
What you have to prove
We pay labor on evidence, not on opinion. A claim on this plan needs the fault isolated to the unit itself, beyond argument:
- A diagnostic from a certified shop naming the failure and ruling out what is bolted to the engine
- Hard readings that support it — compression or leak-down figures, oil pressure, scan data
- Photographs or video of the fault where it can be seen or heard
- Your installation invoice showing our pre-installation checklist was followed, and heat tabs intact
Diagnostic time — how it works
Finding the fault is your shop's time and you pay for it when it happens. If your shop needs two or three hours to diagnose, that is your cost on the day, whatever the outcome.
If the diagnosis confirms our unit failed and the claim is approved, that diagnostic time is credited back to you out of the labor amount you are covered for. If the unit turns out to be sound, the diagnostic stays with you. That is the trade that makes labor coverage possible at all: we pay when the part is at fault, and we are not funding open-ended investigation of everything else on the vehicle.
Where labor coverage is not offered
Three categories cannot be written for labor at any tier:
- CVT transmissions
- Ford 5.4L engines
- Any unit more than 15 years old
This is an underwriting limit, not a comment on the part. These units are still sold and still carry the standard parts warranty in full — labor simply cannot be added to them.
In short: the parts warranty is included with every unit and always has been. Labor coverage is the optional layer on top, priced at one fifth of the amount it protects, chosen by you at the size of your own job, and paid out when the evidence shows our unit was the cause.
Article II · Pre-Shipment Photo Approval
You see it before it ships.
Every order follows a strict 7-step fulfillment process. Nothing leaves our facility until you've seen HD photos of your exact unit and approved them in writing.
02
Step 2
Dismantling
Professionally removed and set aside for preparation.
03
Step 3
Preparation
Degreased, pressure-washed and prepped for freight.
04
Step 4
Pictures for Approval
HD photos sent by text or email for your review.
05
Step 5
Approved
Your written go-ahead is recorded before dispatch.
06
Step 6
In Transit
Strapped, wrapped and shipped — typically 3–5 business days in transit.
07
Step 7
Delivered
Safe delivery to your door.
§ Guarantee
Refund Before Shipment
100% Refund If You Reject the Photos
If you review the pre-shipment photos and reject the part before freight dispatch, you receive a 100% full refund — zero cancellation or restocking fees.
Your written photo approval is what releases your order for shipping. Nothing ships without it.
§ In Transit
Cancellation After Approval
Cancellations After Approval or In Transit
Once you've given written photo approval and the carrier has dispatched your shipment, actual outbound and return freight costs (approximately $350–$400 each way) are non-refundable and will be deducted from any refund.
Article III · Return Terms & Conditions
The fine print, without the fine print.
Four clauses every buyer should read before signing for delivery. Plain language, no surprises.
§ A · Cancellations
Clause A
Order Cancellations Policy
You can cancel your order within 24 hours of payment and get a full refund. You also get a full refund at any point before dispatch if you reject the pre-shipment photos (see Article II).
After 24 hours, we begin preparing your engine for shipment. If you cancel after this time for any other reason, the following charges will apply:
- 20% restocking fee
- Round-trip freight cost (approximately $350–$400 each way), if your part is already shipped
§ B · 30-Day Window
Clause B
30-Day Return Window
Let us know about any visible damage, fitment discrepancy, or issue in writing within 30 days from the date of purchase, with the unit still uninstalled and in its original delivered condition. We can't take returns after 30 days from the date of purchase.
All returns require a written Return Authorization (RMA) from us before the part ships back. Returns sent without an RMA cannot be accepted at our dock.
Please note: If you send the engine back even though it was delivered in good shape (changed mind, ordered wrong part, no issue found), it counts as a canceled order. In that case the 20% restocking fee applies and round-trip freight remains your responsibility.
Check out our Return Policy here.
§ C · Delivery Day
Clause C
Delivery Inspection & Freight Receipt (BOL)
Inspect the crate and unit before signing the carrier's Bill of Lading (BOL). The driver must wait while you or your mechanic check for housing cracks, broken ears, or bent components.
- If any damage is found, write "RECEIVED DAMAGED — [describe damage]" on the BOL before signing.
- Send us photos of the damage and the noted BOL within 48 hours of delivery.
- Damage discovered after the driver leaves (concealed transit damage) must be reported within 48 hours of delivery with photos of the unit and the packaging.
- Do not refuse the delivery. Note the damage on the BOL, accept the shipment, photograph the engine and the noted BOL, and call us the same day. A noted acceptance preserves your carrier claim in full and is the fastest route to a resolution.
- The one exception is physical damage to the engine itself — a cracked block or housing, broken ears, a visibly struck or dropped engine, or any condition that plainly makes it uninstallable. Even then, write the condition on the BOL first, photograph it, and call (307) 224-7279 before the driver leaves if you can.
- Freight carriers reject physical-damage claims on a clean signed BOL. If you sign without noting damage and don't report concealed damage within 48 hours, transit-damage claims cannot be honored.
A refused shipment goes back on the truck and freight is charged both ways. A refusal with nothing written on the paperwork also leaves no carrier record of what was wrong, so the claim cannot be substantiated — which delays your engine by weeks rather than days. Where a shipment is refused without notation, round-trip freight remains the customer's responsibility.
§ D · Heat Tabs
Clause D
Heat Tabs — Strict Void Condition
Every engine ships with heat tabs: heat-sensitive indicators installed on the block whose center melts permanently once the engine overheats. They exist for one purpose — to detect overheating, the single most common cause of engine failure after installation.
Inspect the heat tabs as soon as the engine arrives. If any tab is missing at delivery, report it to us in writing within 48 hours, before installation, so we can record it. Tabs must remain intact, unmelted, and unaltered throughout the warranty period, and intact heat tabs are required evidence for every warranty claim.
STRICT VOID: If the heat tabs are found melted, missing, or tampered with at any point after delivery, this warranty is automatically NULL AND VOID. A melted heat tab is conclusive evidence the engine overheated in service — overheating damage is excluded from coverage, and no claim, return, or refund can be honored.
§ E · Returning a Faulty Unit
Clause E
Returning a Faulty Unit — 30 Days
If a unit develops a fault and the outcome is a return, it must come back to us within 30 days of the fault occurring. A used engine that sits for months after a fault cannot be assessed, cannot be reconditioned, and cannot be put back into service by anyone. That is why this is a firm condition rather than a preference.
You will never be on this clock for time that belongs to us. You cannot return a unit until we have authorised it and sent you the Bill of Lading, so any period before we do that — and any delay of ours after it — does not count against you. We arrange the collection, we cover the freight, and we tell you in writing where the 30 days stands.
VOID CONDITION (V·05): Where a return has been authorised and we have provided the Bill of Lading, and the unit is not made available for collection within the 30-day period, warranty protection on that unit is forfeited. Time spent waiting on us is excluded from the count.
COLLECTION: When a return is authorised we send you the Bill of Lading. Print two copies and keep them with the unit. The driver takes a printed copy by hand and cannot accept it on a phone screen, and they will not wait. If a driver arrives and there is no printed copy to hand over, that is a failed collection — it costs between $200 and $300, and it falls to you where the instruction was given and not followed. We remind you about this every 12 hours until you confirm the copies are printed, precisely so that it never happens.
DRY RUN FEE: On pickup day the carrier needs three things ready — the unit secured on a pallet and strapped exactly the way it was delivered to you, the printed Bill of Lading copies for the driver, and someone present during the pickup window. Where we have emailed the BOL at least one business day ahead and the driver arrives to find the shipment not ready or the paperwork missing, the carrier bills a dry run fee for the wasted trip, and that fee is the customer’s responsibility. It is fully avoidable: if your timing changes, one email before pickup day moves the collection at no cost.
While the claim is open, keeping the unit dry, covered and off the ground with fluids and openings sealed protects it — and protects your claim. If the unit needs moving or handling differently, tell us and we will arrange it at our cost. Anything at all you are unsure about, call Bella, Complaints Specialist, on 307-441-9797, Monday to Friday, 8:30 to 6:30 Eastern.
Article IV · Warranty Terms & Conditions
Five pillars of your coverage.
What you're entitled to under the warranty, broken into five operating principles.
Pillar 01 · Window
30-Day Installation Window
Install your engine within 30 days of the date of purchase to keep your return and warranty valid. If the engine sits too long, air and moisture can cause rust and damage.
Pillar 02 · Coverage Term
1 to 6 Month Warranty Protection
If something goes wrong after the first 30 days return window, don't worry. Your part is still covered by our warranty — 1 to 6 months by model year, and up to 3 years if you add extended coverage.
Pillar 03 · Freight
Full Shipping Costs Coverage
We pay for shipping if your return is approved under warranty.
Pillar 04 · Fitment
Compatibility Coverage
We use your VIN# to match the right engine. Even if it comes from a different year or model, it will fit and work like the original.
Pillar 05 · Recovery
Replacements & Refunds
If we approve your warranty claim, we will pick up the engine and send you an inspected replacement of equal grade. A refund is issued if we cannot supply a compatible replacement within 10 business days — and if a delivered replacement is verified defective on installation, we source a second replacement or issue a full refund.
What Ships With Your Order
What's in the Crate?
Every used engine order ships as a Long Block plus Bolt-on Accessories — packaged and sent together.
1
Core Assembly
Long Block
- Blockhead
- Piston
- Crankshaft
- Camshaft
- Internal lubricated components
Alternator and Starter may not come with the engine. Wiring Harness can sometimes be cut during dismantling, in which case it should be swapped from your original engine. Water Pump will be attached, but it must be replaced with a brand new one (they cost $30–$40). This is not a suggestion — a used water pump is the most common cause of overheating, and overheating is the most common cause of engine failure after installation. Fitting a new water pump is a condition of your warranty (V·06). Keep the receipt — it is required evidence on any claim.
2
Included Free
Free Bolt-on Accessories
- Intake manifolds
- Exhaust manifolds
- Water pumps
- Sensors
- Thermostats
- Hoses
- Seals
- Timing belts
- Spark plugs
- Injectors
- Gasket
- Flywheel
- Oil Pan
- Distributors, etc.
Bolt-on accessories are provided as free courtesy items for installation convenience. They are not sold as part of the purchase price and are not covered by the warranty — wear or defects on courtesy accessories do not constitute a defective engine.
Article V · Scope of Coverage
What's covered, and what isn't.
A direct, side-by-side ledger of what falls inside the warranty boundary — and what stays outside it. No fine print.
✓
Inside the boundary
What's Covered?
Our warranty covers essential internal components only:
- Engine block
- Cylinder heads
- Pistons
- Crankshaft
- Camshaft
- Key internal moving parts
Coverage applies to verified internal defects or operational failure in these components within your warranty term, confirmed by a certified mechanic's diagnostic.
✕
Outside the boundary
What's Not Covered?
- External accessories (sensors, intake/exhaust manifolds, belts, Injectors, Hoses, Brackets, Oil pan etc.) are included for your convenience but not covered under warranty. Everything else, except what's covered, is not covered.
- Warranty coverage is parts only. Labor is excluded unless previously approved in writing or purchased separately.
- Any misuse or abuse — including activities such as racing or towing — as well as neglect, improper handling, or damage resulting from incorrect installation, unauthorized or unqualified repairs/modifications, are not covered.
- Existing problems with the vehicle that will cause damage to the ordered part will also void the warranty.
- The warranty excludes coverage for any delays, loss of time, transportation or towing expenses, or any related direct or indirect damages caused by a defect.
- Leaks caused by old gaskets, filters, or seals are not covered.
- Mileage discrepancies — mileage is provided to the best of our knowledge; the sale and warranty are based on the unit's inspected condition, not exact mileage.
Required · Pre-Installation
Follow the steps to keep your warranty valid.
Installation must be performed by a licensed professional mechanic, following every step in our checklist — including fresh fluids, filters, seals, and a brand-new water pump. Keep your receipts.
Article VI · Voiding Conditions
What voids your warranty.
If any of the following occurs, warranty protection is forfeited. Read carefully — this is the part that costs people coverage.
V·01
Skipping the pre-installation checklist
V·02
Overheating or low lubrication damage
V·03
Doing any repairs or modifications not authorized by us
V·04
Melted, missing, or tampered heat tabs — conclusive evidence of overheating; automatic void
V·05
Not returning a unit with a reported fault within 30 days of the fault occurring — see Clause E
V·06
Not replacing the water pump during installation
V·07
Improper storage before installation — rust, corrosion, or exposure damage
V·08
Returning a part without a Return Authorization, in a condition different from how it was delivered, or with missing parts
Article VII · Filing a Claim
Ready to file a warranty claim?
Contact us by phone, text, or email with the following details ready:
01
Document A · Proof of Issue
A proof of the issue clearly showing the issue and stock# of our part.
02
Document B · Install Record
The installation invoice from your installer showing that our preinstallation checklist was followed.
03
Document C · Diagnostic
A diagnostic report from a certified mechanic isolating the exact issue.
04
Document D · Heat Tabs
A proof that heat tabs are not melted.
Every Claim Handled By a Real Person — Their Words
File a Warranty Return Claim
Reviewed by a real person — every claim is handled by Bella, our Complaints Specialist, on 307-441-9797 · Mon–Fri, 8:30 AM – 6:30 PM ET · You hear from us every working day a claim is open, even when there is nothing new · Claims decided within 2 business days of complete documentation · Approved returns receive a written Return Authorization (RMA) with pickup instructions
Article VIII · Purchase Agreement
What your purchase confirms.
Clear terms, agreed in writing at checkout — so there's never a dispute about what was promised.
§ Agreement
Checkout Acknowledgment
Your Order Is Your Agreement
By completing a purchase on AutoPowerSource.com, you acknowledge and agree to this warranty, the return terms above, and our full Warranty Terms & Conditions. Your checkout agreement, written pre-shipment photo approval, and signed delivery receipt form the record of the transaction.
Payment disputes for free courtesy accessories, buyer's remorse, or transit damage signed for on a clean BOL are outside the scope of this warranty; these matters are resolved under the return and claim procedures above, and disputed charges will be contested with the transaction records described here.
Your legal rights: This warranty gives you specific legal rights, and you may also have other rights that vary from state to state. See our Warranty Terms & Conditions for full details on limitations, transferability, and dispute resolution.
· · ·
Your engine, our promise.
A used engine isn't a phone case. It's a major decision — and the people behind your warranty know it. Every claim is read by a real specialist, not a queue.
Every engine protected· Every claim handled fairly· Every customer satisfied