Terms and Conditions

JDMEnginebay, will not accept returns or refund money for items that do not fit. Only in the case when JDMEnginebay is found to have mistakenly posted incorrect information about the JAPANESE Specifications will an exchange, return, or refund be considered. Make sure to read our DISCLAIMER below for additional details.

Shipping Information

Shipping / transportation charges are non-refundable. Please take this into consideration before purchasing. We have no control over how far you may be or might have had the item shipped; therefore we cannot assume the cost of having it returned from that location. In order to keep our prices low, we do not assume transportation charges into the price of our items. Customers are always welcome to pick up items locally from our warehouse.

DO NOT sign the release documents without fully inspecting the outer packaging for noticeable signs of damage. The freight companies will not let you open the package before signing, therefore you must note any signs of damage based on the outer packaging. Shipping insurance is provided by the freight company, not by JDMEnginebay. If you sign the form and do not note any possible damages, the freight company will be released from all responsibility, and you will not be reimbursed for damages caused during shipping. JDMEnginebay is not responsible for damages caused by mishandling during shipping. Do not sign the release form or let the driver leave without first inspecting the packaging for possible damages. So remember, you must note any signs of damages on the release form before signing.

JDMEnginebay inc prides itself on offering engines of excellent quality. All our engines pass a multi-point Inspection & compression test to ensure great quality engines . We only ship engines with positive compression test results.


A. JDMEnginebay inc warrants that every used engine sold by JDMEnginebay inc will be in a serviceable condition, having regard to the nature of used engines, for the duration of time after the date of sale according to the following applications:
  1. Used Replacement Engines – 90 Days
  2. Used Performance Engines (Vtec, Turbo) – 30 Days
  3. Rotary Engines(Mazda RX-7 13BT/13BTT/20B ) – No Warranty
  4. All Electronical/Electronic Parts – No Warranty
  5. Used Performance Transmissions – No Warranty
  6. Used Replacment Transmissions – 60 Days
  1. 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. The engine block, cylinder walls and cylinder head are also warranted to be free of cracks or distortion.
  2. Head gaskets are warranted for 30 days only, irrespective of the application as stated in Section (A).
  3. JDM Engine bay reserves the right to repair with rebuilt or serviceable used parts, or exchange the engine at its own discretion and determination.

All external parts attached to the engines, e.g., 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 shaft, etc.

  1. The cost of labor required to remove and install a repaired or exchanged engine to the vehicle.
  2. Any damage caused by abuse, neglect, accident or natural perils.
  3. Loss caused by the engine being improperly installed.
  4. Towing charges and/or freight or delivery charges.
  5. Loss caused by overheating. The warranty does not cover oil leaks, blown head gasket or any other engine damage due to over heating caused by poor water circulation, clogged radiator, stuck thermostat or a faulty water pump, etc.
  6. 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.
  7. Loss caused by any modification or use of the engine for which it was not originally designed (ex: adding a turbo, supercharger, nitrous system or aftermarket tuned ECU).
  8. The engine if it is used for competitive driving or racing.
  9. Loss caused by the failure of a part or parts of the engine that are not covered by this limited warranty.
  10. Tune-ups and adjustments, filters, hoses, belts, lubricants, coolants, emission control devices, spark plugs, tune-up parts, etc.
  11. Deterioration or pre-ignition damage.
  12. Repairs performed without prior authorization from JDMEnginebay inc.
  13. Loss caused by defective timing belt. A brand new timing belt should be installed.
  14. Loss caused by modification or forced induction (NOS, Turbos, Supercharged) for which the engine was not designed for from the factory.

Repairs or exchanges will not extend this limited warranty beyond the described term on this form (Item A).


This limited warranty is in lieu of any and all other expressed warranties of JDMEnignebay . Any warranty implied is limited to the duration of this limited warranty. JDMEnginebay does not assume or authorize any person to assume on its behalf any other obligation of liability.


JDMEnginebay inc will not be responsible for incidental or consequential damages arising from loss of use, loss of time, inconvenience, or commercial loss, or any other consequential damage or loss.

  1. To file a warranty claim, download our Warranty Claim Form
  2. 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 have inspected and verified the returned defective engine in question. If the engine is defective, JDMEnginebay will refund the shipping charges to the customer and ship out a replacement engine. If the engine is not defective the customer will pay all shipping charges to ship the engine back to the customer.
  3. The engine MUST be returned in the same condition it was sent, all missing parts will be charged to the customer.
  4. In the event that the wrong and/or defective engine is not returned to JDMEnginebay within 60 days after a replacement engine is sent to our customer, the customer will be charged the full amount of the engine, plus all freight charges.

Engines complete with accessories may not comply with the emission control laws of the state or country in which it is being sold or used. State and/or federal authorities require that you change over the emission devices from your old engine to the engine you are installing to make it comply. The add-on parts on the engine sold by JDMEnginebay are left attached for testing purpose only, for your convenience and are free of charge. The purchase price represents the cost of the long block only (i.e. cylinder head and short block only).


  1. Must be installed, maintained, or adjusted by a certified mechanic.
  2. Set ignition timing to specification as recommended by manufacturer.
  3. Change oil after 3000 miles.
  4. Re-torque cylinder head bolts to manufacturer's specification.
  5. Check cooling system and service if rusted or contaminated with oil and replace coolant.
  6. Must replace the timing belt, oil filter, water pump and spark plugs

Sales Policy

All sales are final, no refunds or exchanges.

No Deposit refunds.

Orders can be cancelled if they have not been shipped

A $25.00 fee will apply to cancelled orders payed by check.

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.

Condition of Used Engines

These are used engines which have been in use for 20,000-60,000 miles (depending on the year of manufacture) and are not brand new. There may be small scratches on the engine because it is used. There may also be fragile plastic, metal or rubber parts that could possibly bend or break during shipping. These parts can be replaced with parts from your original engine or bought from a local used auto parts store.

We have carefully selected the best possible quality used Japanese auto parts. Our sourcing agents in Japan carefully select vehicles with the lowest mileage and in the best conditions possible. With all our engines, we perform compression tests and we can provide you with the results of those compression tests.

2439 Verna Ct.
San Leandro CA 94577



Business Hours:
Mon-Fri: 9am - 6pm
Sat: 9am - 3pm
Sun: By Appointment Only.

JDM Engines PA
2181 bennett rd
Philadelphia PA 19116


(215) 613 8004

Business Hours:
Mon-Fri: 9am - 5pm
Sat: 9am - 2pm
Sun: By Appointment Only.