We offer 90 days warranty for engines & transmissions that are non-performance.

We offer 30 days warranty for performance engines (i.e., Turbocharged, Supercharged, VTEC, VVL, MIVEC, etc.).

All our engines are covered by a warranty against rod knock, cracked block, and internal failure. All internal engine parts, including pistons, piston rings, piston pins, crankshaft, and main bearings, connecting rods and rod bearings, camshaft and camshaft bearings, timing chain and timing gears, intake and exhaust valves, valve springs, seals, guides, oil pump, push rods, rocker arms, and shafts, are covered. The engine block, cylinder walls, and cylinder head are also warranted to be free of cracks or distortion.

The warranty starts from the date you receive the item.

All rotary engines are not under warranty.

Engines and transmissions must be installed within the warranty period.

Repairs or exchanges will not extend this limited warranty.

Engine warranty will be void if it is overheated, improperly installed, modified, or abused.

Engine accessories and sensors (i.e., Alternator, Power Steering, Turbo, etc.) are not under warranty. They are left on as a courtesy to the customer. No warranty on seals, leaks, or sensors.

We also don’t give warranty on the external parts attached to the engines like intake and exhaust manifolds, carburetors, distributor, starter, emission control devices, flywheel, clutch and pressure plate, water pump, thermostat, belts, hoses, oil pan, valve cover, sensors, electronic parts (distributor, wires, computers, injectors, etc.), transmissions, drive shafts, engine mounts, half shafts, etc.

All parts are sold with the expectation that they will be installed by a licensed professional in a licensed repair facility that has all applicable city and/or state licenses, whichever is applicable, and that all procedures outlined by the vehicle manufacturer services or workshop manual are followed. Failure to do so will void any and all warranties.

JDM Seattle Washington Inc. reserves the right to exchange only if the part is defective or refund only if we do not have said item in stock.

All sales are final. No refunds or exchanges in case you change your mind or just didn’t like the product.

Engines that are timing belt-driven require a new timing belt to be installed at the time of installation and any timing belt tensioner or idler pulley, whichever applies to the vehicle. Failure to do so or improper installation will void the warranty.

Any engine that is returned and the valves have been touched or broken off against the pistons will be deemed as improper timing belt installation.

If any engine or transmission is found to be defective by our professional team, it must be returned to JDM Seattle Washington Inc. for exchange, and it must be in the same condition as picked up or dropped off.

JDM automatic transmissions must use manufacturer ATF fluids only. Any other fluids used (i.e., AutoZone, NAPA, or any other non-OEM ATF fluids) will void the warranty.

Transmissions are only warranted against slipping.

Warranty Does Not Cover:

• The cost of labor required to remove and install a repaired or exchanged engine to the vehicle.
• Any damage caused by abuse, neglect, accident, or natural perils.
• Loss caused by the engine being improperly installed.
• Towing charges and/or freight or delivery charges.
• Loss caused by overheating. The warranty does not cover oil leaks, blown head gaskets, or any other engine damage due to overheating caused by poor water circulation, clogged radiator, stuck thermostat, or a faulty water pump, etc.
• Decrease in performance of any covered part due to normal wear and tear (unless actual breakdown occurs), having regard to inherent manufacturing faults in some engine models.
• Loss caused by any modification or use of the engine for which it was not originally designed.
• The engine if it is used for competitive driving or racing.
• Loss caused by the failure of a part or parts of the engine that are not covered by this limited warranty.
• Tune-ups and adjustments, filters, hoses, belts, lubricants, coolants, emission control devices, spark plugs, tune-up parts, etc.
• Deterioration or pre-ignition damage.

Terms and Conditions:

• JDM Seattle Washington Inc. assumes no responsibility for improper installation or usage after the time of purchase. We will not cover charges to install or remove the parts, loss of income, wages, salary, or car rental charges.
• The customer is responsible to cover all the fees for labor. No warranty on labor.
• We are not liable for smog check or related issues. Please check with your local smog stations.
• Transmission sensors and solenoids must be used from the original USDM transmission. The JDM transmission will not function properly if the sensors and solenoids are not changed.
• Any parts that are not returned in the same condition, JDM Seattle Washington Inc. will not accept the product.
• The engine must be returned in the same condition it was sent. All missing parts will be charged to the customer.
• All refused/returned orders will be charged 20% of the invoice amount for restocking fees plus all freight charges to return the item to our warehouse.
• The customer is responsible for all the freight charges on the return of defective engines, and no replacement engine will be sent until our staff has inspected and verified the returned defective engine in question. If the engine is defective, our staff will either send a replacement engine or issue a refund minus the shipping charges.