Backed by the Industry’s Leading Warranty Coverage

Our standard warranty on remanufactured engines, transmissions, differentials, and transfer cases covers 1, 3, or 5 years or up to 1 million miles, whichever comes first.* This industry-leading coverage is designed to give you total confidence in every purchase. Every component is backed by our commitment to long-term reliability and performance. No other company comes close to matching this level of protection.

Is There Fine Print? Here’s What You Really Need to Know.

It’s one thing to say we have the industry’s best warranty, it’s another thing to prove it.

Here’s why our warranty is the best:

We don’t exclude commercial use (only we do warranty it differently)
We don’t exclude DIY’ers or self-installers from warranty coverage
We answer the phone when you call – we don’t outsource our warranty to a third party or force our customers to do everything “online.”

For more information about our warranty, be sure to read our official warranty policy.

NATIONAL ENGINE DEPOT WARRANTY POLICY

REMANUFACTURED LIMITED WARRANTY

National Engine Depot warrants its remanufactured components against defects in workmanship and materials, subject to the schedules and limitations outlined below. This limited warranty is governed by the terms, exclusions, and conditions set forth herein. National Engine Depot’s liability is limited solely to the repair or replacement of defective parts and/or workmanship. We are not liable for incidental, special, consequential, or exemplary damages, or for any service not expressly described herein.

A claim number must be obtained prior to any repair or replacement. Any work performed without prior written authorization will not be reimbursed.

COVERAGE FOR REMANUFACTURED ENGINES, TRANSMISSIONS, DIFFERENTIALS & TRANSFER CASES

1-Year / 100,000-Mile Warranty
Labor reimbursed up to $50/hour per ALLDATA labor guide.

3-Year / 500,000-Mile Warranty
Labor reimbursed up to $75/hour per ALLDATA labor guide.

5-Year / 1,000,000-Mile Warranty
Labor reimbursed up to $100/hour per ALLDATA labor guide.

See Section B for excluded vehicles.

INSTALL KITS & MISCELLANEOUS COMPONENTS

All install kits and small miscellaneous parts are covered for 1 year, parts only. Labor is not included under any circumstances for these components.

LABOR REIMBURSEMENT POLICY

Labor is reimbursed at the licensed shop’s advertised rate, up to the hourly limit outlined in the warranty tier above. Fleet customers are reimbursed at $35/hour based on ALLDATA time guides.

Reimbursement is only made to licensed repair facilities.
A printed repair order is required—handwritten or non-business documents are not accepted.
Work done by the vehicle owner (DIY) or at non-commercial repair locations is not eligible.
If the original purchaser is not a licensed shop, a paid repair invoice from a qualified shop may be accepted.

EXCLUSIONS FROM WARRANTY COVERAGE

Coverage does not extend to damage caused by:

Accident, flood, fire, theft, abuse, racing or competitive use
Power modifications: superchargers, turbochargers, nitrous, methanol
Situations covered under auto insurance policies
Adjustments (e.g., valve lash) or components not installed by National Engine Depot
External seals, gaskets, sensors, or hardware not supplied by National Engine Depot

WARRANTY TRANSFER

Warranty may be transferred for a $200 processing fee if:

Vehicle is less than 12 months in service
Transfer occurs at the time of vehicle sale
A written request is submitted to National Engine Depot

Failure to follow this process voids the warranty.

SECTION B – EXCLUDED VEHICLES

These vehicles do not qualify for warranty coverage under any plan:

1-ton trucks or larger
Vehicles used for fire, rescue, police, snow plowing, towing, or delivery
Rental, taxi, limo, Uber, Lyft, or other hire services
Natural gas/propane-fueled vehicles
Motorhomes, marine applications, industrial/off-road or stationary use

INSTALLATION & BREAK-IN PROCEDURES

Installer Responsibilities

Installers must thoroughly diagnose the vehicle and ensure all related systems (fuel, cooling, electrical, sensors) are functional before installing any National Engine Depot product.

Improper diagnostics or use of faulty external components can void warranty.

Break-In Procedure

Engines:

Must be oil-primed before first start
Use conventional oil only for break-in
First oil change at 500 miles, second at 2,500–3,000 miles
Oil changes every 3,000 miles thereafter
Switch to synthetic only after break-in is complete
Check oil daily during first 3,000–4,000 miles
Oil consumption is normal in early mileage

Transmissions / Transfer Cases / Differentials:

These are pre-broken-in
No break-in required, but initial inspection and proper installation is essential
Discontinue use if warning lights, noises, or abnormal performance occurs

CLAIM PROCESS

To initiate a warranty claim:

Contact National Engine Depot to obtain a claim number
Submit proof of diagnosis and repair estimate
Do not begin work until authorization is provided

We reserve the right to:

Inspect or retrieve failed components
Replace or repair at our discretion
Use new or remanufactured parts that meet OEM standards
Require return of parts for reimbursement eligibility

Failure to follow claim procedure may void the warranty.

PARTS REIMBURSEMENT

Reimbursement is based on actual shop cost with valid receipts. If receipts are unavailable, reimbursement will be calculated using national jobber rates.

INSTALLATION NOTES & RECOMMENDATIONS

Some units come with specific requirements, including:

Chrysler/Dodge/Jeep 3.7L, 4.7L, 5.7L Engines: Replace or clean intake manifolds
Engines with Oil Coolers: Replace the cooler—do not flush if contaminated
Transmissions: Replace transmission cooler to avoid contamination issues
Dodge 271D/273D Transfer Cases: Front driveshaft must be replaced

Failure to follow these recommendations will void the warranty.

WARRANTY LIMITATIONS – WHAT IS NOT COVERED

Normal wear and tear
Improper maintenance or installation
Use of unapproved filters or contaminated fluids
Pre-ignition, detonation, overheating
Racing, competition, or alternate fuels
Electrolysis, improper crankshaft pressure
Noisy but functional engines
Failure to follow break-in, oil service, or part replacement requirements

OWNER/OPERATOR ACKNOWLEDGMENT

You agree that:

This is a limited warranty, not an unconditional guarantee
You understand and accept the exclusions and conditions
You will follow all maintenance schedules and keep records
You will not operate the vehicle with known issues
You will follow break-in procedures and have the vehicle inspected at 500–1,000 miles

JURISDICTION & LEGAL NOTICE

This warranty is governed by the laws of the State of [Insert Your State].
All claims must be resolved in [Insert County], [Insert State] courts.
By purchasing, you agree to this jurisdiction.

TERRITORY RESTRICTIONS

Warranty coverage applies only within the 48 contiguous United States.
Coverage is void if the vehicle is relocated outside this territory.

WARRANTY REGISTRATION REQUIREMENT

Warranty must be registered within 30 days of purchase to be valid.
Unregistered warranties will be voided without exception.

National Engine Depot
[Insert Company Address]
Phone: [Insert Phone Number]
Website: [Insert Website URL]
Email: [Insert Support Email]