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Warranty Information

Engine Warranties


The non-pro-rated warranty is the most valuable form of a warranty and our Engine’s Basic warranty is the very best in the business. Non-Pro-rated warranty means you’ll enjoy the same level of protection for the entire life of the warranty – 7 Years/100,000 miles!

While our competitors prorate their warranties, we don’t.. A pro-rated warranty covers a smaller percentage of coverage as the engine is used and gets older. The moment you start using your engine, you’re losing coverage – and peace of mind. We believe that you deserve the finest remanufactured and replacement engine backed by the best warranty in the business!

You deserve the same level of protection for the entire life of the warranty. .Our service pledge to you is as good as the quality of our engines.

Our customers demanded it – and we’ve responded! Total Assurance warranty carries all the same benefits as the Basic warranty plus:
+It’s Transferrable: Increase your vehicle’s value significantly with the added value of supreme engine protection
+$85.00/hour shop labor, covering most nationwide labor rates
+$1,700.00 protection for parts & labor for an authorized field repair or engine exchange.

Upgrade to our Total Assurance warranty for additional coverage with out-of-pocket expenses. Get your mechanic paid and your vehicle on the road without opening your wallet again!



Claims: Warranty claims must be approved. All defective parts must be returned to Engine Parts Only. All claims must be accompanied with a warranty reference number.

Labor Reimbursement: Labor reimbursement will (NOT) be paid for an engine removal unless a defect caused during manufacturing is present in the short block, all other repairs will be done in the field.

Warranty labor reimbursement is: for seven (7) years or 100,000 miles and will be paid to the original buyer (individual signing this warranty) only, and will be at the following hourly rate, regardless of who performs the warranty work.
Basic warranty labor rate: labor cost for repairing or replacing a defective unit is limited to $50.00 per hour based on time allowed in Mitchell’s Time Guide. No labor will be paid twice for the same repair. The Basic warranty comes with a maximum of $850.00 total parts and labor coverage on an authorized field repair or engine exchange..
Labor reimbursement for self-installers or private party installers: Labor reimbursement for private or self-installers is limited to $15.00 per hour for the first year only; no labor will be paid thereafter.
Warranty Period on long blocks: Passenger car and pickups, one ton and under (gas & diesel) are seven (7) years or 100,000 miles.

If failure should occur during this time frame and it is determined the failure is due to a defect in workmanship and/or parts installed during manufacturing, Engine Parts Only at its option will replace or repair defective unit to the original buyer.

Exceptions to the seven year warranty including parts and labor: Long block warranty on diesel applications is for three (3) years or 36,000 miles. Long Block warranty on turbo equipped, above one ton chassis, farm equipment and marine applications is limited to twelve (12) months or 12,000 miles. Gaskets installed during our remanufacturing process on a long block such as oil pan, timing cover, valve covers, etc., are covered against leaking for ninety (90) days from the purchase date.

Marine Warranty: The warranty on Marine long block applications is limited to twenty four (24) months from the date of purchase with a maximum labor liability of $850.00 regardless of boat model and/or application.
Motorhomes & RVs Warranty Period: 12 months/12,000 miles
Long Block Replacement: An alleged defective long block will not replace until the original long block is returned for diagnostics. Engine Parts Only reserves the right to determine whether to replace a long block or to repair it also the right to make the repairs themselves.
Parts sold but not installed by Engine Parts Only: Parts supplied by Engine Parts Only but not installed by Engine Parts Only, (such as, but not limited to, the oil pump and gaskets) that fail during the warranty period carry their manufacturer's warranty only. No labor is allowed for their replacement or labor to remove and replace the long block if required due to their failure.
Warranty Disclaimer: Engine Parts Only shall not be responsible for damage to other parts or units not supplied by Engine Parts Only. Such parts include but are not limited to transmissions, clutch, pressure plate, engine heaters, oil pans, etc. No responsibility will be assumed, and no warranty is given or implied on any engine damaged by improper installation or damaged by failure of any parts not supplied by Engine Parts Only. Also, any engine modified beyond original factory specifications, either by Engine Parts Only at the customer’s request, or by the customer, shall relieve Engine Parts Only of any responsibility or warranty.

Engine Parts Only will not be responsible or liable for any of the following: 1) Loss of time, 2) loss of income or revenue, 3) Loss of transportation or vehicle rental, 4)Equipment rental, 5) Any towing charges, 6) Crankshaft thrust damage with heat on transmission side only, 7) Diagnostic time, fluids, filters, or shop supplies after 90 days, 8) Damage due to oil starvation for any reason, 9) Piston skirt scuffing, 10) Overheating, removing, or melting of heat tab, 11) Detonation, pre-ignition of pistons (melted or broken), 12) Head gasket with burnt or crushed steel fire ring, 13) Abnormal wear from contaminated oil or fuel wash, 14) Installation of long blocks installed in non OEM applications (which voids the warranty).

No other warranty is expressed or implied.

This warranty must be filled out with all of its requirements and returned Engine Parts Only.
After installation, engine must have a diagnostic scan to insure a lean burn or rich fuel condition is not present.
Receipt for testing must accompany this warranty validation form.

The diagnostic testing must be completed within ninety (90) days of purchase date. If engine is not tested, this warranty is void.


Legal Disclaimer is not affiliated with FCA US LLC. Jeep® is a registered trademark of FCA US LLC.

Part numbers listed in this website are used for reference purposes only. No implication is made that the actual products sold are the product of the original equipment manufacturer.

Reference to a manufacturer in the website does not indicate that the manufacturer is the source or sponsor of the listed product. All products listed are being sold without any sponsorship or approval of any auto manufacturer.

This website is intended for fast reference use. While every effort has been made to insure correctness of the applications listed, we cannot guarantee accuracy due to many model changes and supersedence of part numbers. Crown Automotive Sales Co., Inc. makes no representation as to the dimensions, assemblies and/or calculations herein, and we will not be liable to any third party should any of the information contained within this website be in error.

The installer is liable and holds the responsibility of assuring that the new part matches the old part before proceeding with the installation. No part will be warranted if used in high performance applications, racing applications, and industrial applications. always recommends that the installer inspect the condition of all related components that pertain to the job, when replacing a part, in order to avoid failure of these components, in the future. Failure to do so may result in the failure of the new part installed, and voiding the warranty. warranty is not transferrable and is only valid to the original purchaser


All parts carry a limited 12 month or 12,000 mile warranty whichever occurs first. Claims for warranty must be made by the original purchaser directly. This warranty is limited to the replacement of a defective product only. Any alleged defective products must be returned to for inspection for warranty to be approved. Any claim will not be settled until past due accounts are brought up to date. will not be responsible for any labor, towing, fluids, freon, filters, lodging, car or truck rental. Any item returned to for credit must be sent by the original purchaser, and must be accompanied by a RA (Return Authorization) number.

An RA (Return Authorization) number must be obtained by contacting Warranty Department, before attempting to return any new part or warranty part. When contacting Warranty Department, itis important to have ready: Account number, Date of original purchase, Invoice number, and part number, an explanation of the problem, and the mileage at the time of installation and mileage at the time of failure. Returns will not be accepted, unless they are accompanied with all the information stated above. warranty implies that any claim regarding a part is subject to only the replacement of the alleged defective part. No claim will be paid on water pumps.