1 (832) 667-8666
Hours: Mo-Fr 9am-6pm CST; Sa 9am-3pm CST


0 item(s) - $0.00
You have no items in your shopping cart.

Warranty Information



JDM King Motors Corp. provides its customers with used imported Japanese engines with low mileage. External parts of the engines such as belts, hoses, seals, gaskets, and plastic covers are sometimes damaged during shipping and can be replaced by the customer’s mechanic using parts from the designated vehicle. Cosmetic damages such as scratches on valve cover are normal on used engines and do not reflect upon performance of said engine. In addition, replaceable parts such as sensors, exhaust pipes, and air intake boxes may be missing if they are broken or damaged. JDM King Motors Corp. is not responsible for these parts as the warranty only covers internal parts, which would prevent the engine/transmission from operating correctly.


Any non-performance engine purchased from JDM King Motors Corp. includes a 90-day warranty starting on the date shown on invoice. Any performance engines (i.e. turbocharged, supercharged, KL31, VTEC VVTI VVL MIVEC, etc.) include a 30-day start-up warranty also starting on the date shown on invoice. ALL ROTARY ENGINES ARE NOT UNDER WARRANTY. Engines and transmissions must be installed between the warranty periods. Performance transmissions are covered by a 30-day start up warranty against defective internals only. Non-performance transmissions are covered by a 30-day unlimited mileage warranty against defective internals only. The warranty covers only internal parts of the engine block and head(s) as well as transmission, and does not include exterior engine/transmission and related parts such as clutches, flywheels, flex plates, distributors, coil packs, igniters, alternators, a/c pumps, power steering pumps oil/water pumps, solenoids, sensors, valve covers, oil pans, manifolds, fuel system, turbo/superchargers, and torque converters. In the event of a defective engine block, head, or transmission, JDM King Motors Corp. will be responsible to either replace or fix the defective part only, at our discretion.


JDM King Motors Corp. is not responsible for installation or improper use of any engine/transmission sold to a client; therefore the following parts and circumstances are not covered by our warranty:

  1. Professional installation is required. We do not provide technical support for installations and do highly recommend if you are not familiar with the swap to please consult with a professional mechanic. If certified mechanic does not install the engine/transmission, warranty is void. No questions asked!
  2. All external parts of an engine such as axles, power steering, oil/water & a/c pumps, intake & exhaust manifolds, carburetors, distributors, coil packs, igniters, valve cover(s), oil pan, alternators, starters, emission control devices, thermostats, belts, hoses, clutches, flywheels, pulleys, wiring, computers (ECU), transmissions, turbo/supercharger units, fuel systems, gaskets, seals, sensors, solenoids, and any plastic trim pieces.
  3. All body parts, interior parts, wheels, & suspension are not under warranty. These parts are always sold "as is".
  4. The loss of engine, if the engine is redlined or competitively raced voids warranty.
  5. Customer must perform oil system overhaul procedure. (Flush oil system & change oil pump). The loss of engine as a result of insufficient amount of oil in the engine or lack of oil pressure will void warranty.
  6. Any labor for installation or removal of any defective part of an engine/transmission is not covered under warranty.
  7. Customer must perform Timing overhaul. (Timing belt/chain/tensioner). Any damage to the engine due to improper installation will void warranty.
  8. Swapping or removal of cylinder head(s)/crank/rods/pistons/cam(s)/gears & removal of transmission casing voids warranty
  9. Loss caused by modification or forced induction (Nitrous/Alcohol Injection/Turbo/Supercharger & Aftermarket ECU upgrades) for which the engine was not designed will void warranty.
  10. Customer must perform cooling system overhaul. Loss caused by overheating of the engine, unless overheating is the direct result of the failure of an internal part of the engine.
  11. Any tune-ups and adjustments in belts, hoses, filters, emission control devices, sparkplugs, etc are not covered under warranty.
  12. Decrease in performance of any covered part due to normal wear and tear, unless actual breakdown occurs. JDM King Motors Corp. will not be held responsible if the engine purchased does not fit into the designated vehicle. Before purchasing the engine/transmission, the customer must verify that the engine will fit into said vehicle. We will not be held responsible if incorrect engine is purchased.

JDM King Motors Corp. will NOT be held responsible for the failure of emissions or smog test. Please verify with your local authorities if the engine passes smog and emissions regulations in your state.


In the unlikely event of a Head/Block/Transmission being defective, we will require the following to be emailed/faxed only to us:

  1. JDM King Motors Corp. will require a detailed written description (work order) along with pictures of the described defective part from a Certified Mechanic ONLY.
  2. A copy of the Mechanic's certification along with his/her contact information must be provided. JDM King Motors Corp. will contact the Certified Mechanic to ensure that the documents are legitimate. The Certified Mechanic may not be the individual who bought the engine from JDM King Motors Corp.. You may fax the required paperwork to +1 (832) 659-0112 ATTN: Claims or email to info@jdmkingmotors.com.

If you have any questions or concern regarding this warranty or any other type of questions, please feel free to contact us via email at info@jdmkingmotors.com or via telephone at 1 (832) 667-8666.

JDM King Motors Corp. reserves the right to change or modify this warranty at any time.