FAQs

ORDERING & PAYMENT

1. How do I place an order at Apex Drivetrain?
Simply browse our inventory at apexdrivetrain.com, select your desired engine or transmission, and follow the checkout process. You can also contact us directly for custom orders.

2. What payment methods do you accept?
We accept major credit cards (Visa, Mastercard, American Express, Discover), debit cards, and PayPal. Contact us for alternative payment arrangements.

3. Is financing available for larger purchases?
Currently, we do not offer in-house financing, but we are working on expanding our payment options. Check back with us for updates.

4. Do I need to create an account to place an order?
No, you can checkout as a guest. However, creating an account allows you to track your order history and save your shipping preferences.

5. Can I order over the phone?
Absolutely. If you prefer to speak with someone directly, give us a call and our team will assist you with your order.

6. Do you offer wholesale pricing for automotive shops?
Yes, we offer wholesale pricing for registered businesses and repair shops. Contact us with your business details for a quote.

7. Are prices listed in USD?
Yes, all prices on our website are listed in US Dollars.

8. Do you charge sales tax?
Sales tax is applied to orders shipping to states where we have a tax nexus. Otherwise, no sales tax is charged.

9. Can I cancel or modify my order after placing it?
We process orders quickly, but if you need to cancel or modify, please contact us immediately. Once the order has been processed, cancellation may not be possible.

10. Do you offer price matching?
We strive to offer competitive pricing. Contact us if you find a lower price on a comparable unit and we will do our best to match it.

INVENTORY & PRODUCT QUESTIONS

11. What brands do you carry?
We carry top JDM brands including Toyota, Honda, Nissan, Subaru, Mazda, Mitsubishi, and more.

12. Do you sell complete engines or long blocks only?
We offer both complete engines (with accessories, intake, exhaust manifolds, and sometimes turbochargers) and long blocks. Check the specific listing for details.

13. Do your engines come with the ECU and wiring harness?
Many of our complete engines include the ECU and engine harness, but this varies by listing. Please verify in the product description or contact us.

14. Do you sell transmissions separately?
Yes, we sell JDM transmissions individually as well as in engine-and-transmission combo packages.

15. What kind of transmissions do you carry?
We carry manual and automatic transmissions for a wide range of JDM applications, including Subaru STI 6-speeds, Nissan CD009, Toyota R154, and Honda B/K-series gearboxes.

16. Do you carry turbochargers and other parts separately?
Our primary focus is complete engines and transmissions, but we occasionally have turbochargers and other components available. Check our website or contact us.

17. Can you source a specific engine I am looking for?
Yes, if you do not see what you need on our website, contact us and we will do our best to source it for you.

18. Do you carry JDM engines for off-road or marine use?
While most of our engines are designed for automotive applications, some are suitable for off-road builds. Marine conversion is not something we specialize in.

19. What mileage range can I expect from your engines?
Most of our JDM engines range from 40,000 to 65,000 miles, thanks to Japan’s strict inspection system.

20. Do you inspect each engine before shipping?
Yes, every engine undergoes a multi-point inspection including compression testing and visual checks for leaks and damage.

SHIPPING & DELIVERY

21. How long does it take to process and ship my order?
We process orders within 0-2 business days and ship them within 3-5 days, Monday through Sunday.

22. Do you ship to all 50 US states?
Yes, we ship throughout the United States, including all 50 states.

23. Do you ship to PO boxes or APO addresses?
We typically ship via freight carriers that require a physical address. Contact us for APO/FPO inquiries.

24. How is my engine or transmission packaged for shipping?
Every unit is carefully strapped to a heavy-duty pallet and crated to protect it during transit.

25. Do you provide tracking information?
Yes, you will receive a tracking number as soon as your order ships.

26. What if my package arrives damaged?
Inspect your shipment immediately upon delivery. If you notice damage, take photos and contact us right away so we can file a claim and resolve the issue.

27. Do I need to be present for delivery?
Yes, freight shipments typically require a signature at delivery.

28. Can I choose my shipping carrier?
We select the most reliable freight carrier for your location, but contact us if you have a specific preference.

29. What is the estimated shipping cost?
Shipping costs vary based on your location, the weight of the unit, and the shipping method. You will receive a quote at checkout or contact us for a custom quote.

30. Do you offer expedited shipping?
Yes, expedited shipping is available upon request. Additional charges apply.

WARRANTY & RETURNS

31. Do you offer a warranty on your engines and transmissions?
Yes, we stand behind our products. Warranty terms vary by product; please check the specific listing or contact us for details.

32. What does your warranty cover?
Our warranty covers manufacturing defects and mechanical issues not caused by improper installation or abuse.

33. What is not covered under warranty?
Damage from improper installation, modification, neglect, racing, or using incorrect fluids is not covered.

34. How long does the warranty last?
Warranty periods vary. Contact us for the specific warranty term on your unit.

35. Can I return an engine if it doesn’t fit my project?
Returns are accepted within a specified window if the unit is unused and in its original condition. Restocking fees may apply.

36. Do you offer exchanges?
Yes, exchanges can be arranged for eligible units. Contact our support team to start the process.

37. How do I file a warranty claim?
Contact us with your order number, a description of the issue, and any supporting photos or videos. We will guide you through the process.

38. Will I have to pay return shipping for a warranty claim?
If the claim is approved, we will cover the return shipping costs.

39. How long does it take to process a warranty claim?
We aim to process all claims within 2-5 business days of receiving the necessary documentation.

40. Do you offer any satisfaction guarantee?
Your satisfaction is our priority. Contact us if you have concerns and we will work to find a fair solution.

TECHNICAL QUESTIONS

41. What is a JDM engine?
JDM stands for Japanese Domestic Market. These engines are sourced from vehicles originally sold in Japan, known for their low mileage and excellent maintenance history.

42. Are JDM engines plug-and-play with US vehicles?
Not always. Some JDM engines have different sensor configurations, emissions equipment, or wiring that may require modification for US vehicles.

43. Will a JDM engine pass emissions testing in my state?
This depends on your local emissions laws. JDM engines may not have the same emissions equipment as USDM engines. Check with your local authorities before purchasing.

44. What is the difference between a JDM engine and a USDM engine?
JDM engines often have higher compression ratios, different tuning, and sometimes features not offered in the US market. They also typically have significantly lower mileage.

45. What do I need for a full engine swap?
Typically you will need the engine, transmission, ECU, wiring harness, mounts, and potentially a custom exhaust and intake setup.

46. How difficult is it to swap a JDM engine?
This varies widely based on the vehicle and engine combination. Some swaps are straightforward, while others require fabrication and wiring expertise.

47. Do you offer installation services?
We are a supplier, not an installation shop. However, we work with a network of trusted shops and can provide recommendations.

48. What tools do I need for an engine swap?
At minimum: an engine hoist, engine stand, basic mechanic’s tool set, jack stands, and a torque wrench. Some swaps also require specialty tools.

49. Should I replace seals and gaskets before installing a JDM engine?
It is highly recommended to replace the rear main seal, valve cover gaskets, and other common wear items while the engine is out of the vehicle.

50. Do I need a new clutch with my JDM transmission?
We recommend installing a new clutch and pilot bearing when mating a transmission to a new engine to avoid future labor costs.

SHIPPING TIMING

51. Do you process orders on weekends?
Yes, we process orders 0-2 business days regardless of the day you order, and we ship Monday through Sunday within 3-5 days.

52. What does “0-2 business days processing” mean?
It means your order will be processed within 0 to 2 business days from the time you place it. Some orders are processed the same day.

53. How long does shipping take once the order is processed?
Shipping typically takes 3-5 days once your order leaves our facility.

54. Do you ship on holidays?
We do not ship on major holidays, but we continue processing orders during holiday periods.

55. Can I pick up my order in person?
If you are local, contact us to arrange an in-person pickup rather than shipping.

JDM VS. USDM

56. Why are JDM engines cheaper than USDM engines?
Japan’s strict vehicle inspection system creates a surplus of low-mileage engines as vehicles are retired early despite being mechanically sound. This supply keeps prices competitive.

57. Are JDM engines better than USDM engines?
In many cases, JDM engines have lower mileage and were better maintained. However, some JDM engines also offer higher performance specifications than their USDM counterparts.

58. Do JDM engines have the same horsepower ratings?
Not always. Some JDM engines produce more horsepower due to higher compression or different turbocharger setups. Always verify the specifications.

59. Will a JDM engine have the same sensor plugs as my USDM car?
Sometimes the connectors differ. You may need to swap your intake manifold or use adapter harnesses.

60. Are JDM engines built to the same quality standards?
Japanese manufacturers maintain the same high quality standards across all markets, but JDM engines often benefit from better maintenance during their service life.

INSTALLATION & PREPARATION

61. Should I do a compression test before installing?
We perform compression testing before shipping, but it is always good practice to verify upon arrival.

62. Should I change the oil before starting a JDM engine?
Yes, we recommend fresh oil and a new filter before first startup to remove any storage-related contaminants.

63. What type of oil should I use?
Use the manufacturer-recommended oil weight for your specific engine. Most JDM engines use 5W-30 or 10W-30.

64. Do I need to replace the timing belt or timing chain?
For engines with timing belts, it is strongly recommended to replace the belt and tensioner before installation. Timing chains generally do not need replacement.

65. Do JDM engines come with spark plugs?
Most engines arrive with their original spark plugs. We recommend installing new plugs before startup.

66. Should I flush the cooling system?
Yes, flush the cooling system and replace with fresh coolant before running the engine.

67. Do I need to prime the oil system before first startup?
Yes, especially if the engine has been sitting. Disable the ignition and crank the engine until oil pressure builds, or use a priming tool.

68. What coolant should I use?
Use the manufacturer-recommended coolant type for your engine. Most Japanese engines use a long-life coolant.

69. Will my existing motor mounts fit a JDM engine?
Not always. Some JDM engines use different mounting points. Check compatibility before installation.

70. What is a “full dropout” engine and transmission combo?
A full dropout is a complete front subframe assembly with the engine and transmission still mounted together, often used for donor builds.

TRANSMISSION QUESTIONS

71. How do I know which transmission is right for my build?
Consider your power goals, driving style, and intended use. Touring builds benefit from close-ratio manuals, while high-horsepower builds often need stronger gearboxes.

72. What is the strongest JDM transmission?
The Toyota R154 and Nissan CD009 are widely considered among the strongest JDM transmissions, capable of handling 600-800+ horsepower.

73. Are JDM transmissions compatible with USDM bellhousings?
Sometimes, but not always. Check the bellhousing pattern of your specific application.

74. Can I convert an automatic car to manual using a JDM transmission?
Yes, manual swaps are popular. You will need the transmission, clutch pedal assembly, master and slave cylinders, and sometimes a different ECU.

75. Do JDM transmissions come with the clutch?
No, transmissions are sold as the gearbox unit only unless specified otherwise in the listing.

76. What is the difference between a 5-speed and 6-speed transmission?
A 6-speed offers closer gear ratios, often providing better acceleration and a more usable top gear for highway cruising.

77. Are JDM automatic transmissions reliable?
Yes, JDM automatic transmissions are generally well-maintained and reliable. Popular options include Toyota A-series and Nissan RE4R01A units.

78. Do I need to replace the transmission fluid?
Yes, we recommend fresh fluid before installation.

79. What transmission fluid should I use?
Use the manufacturer-specified fluid. Manual transmissions typically use gear oil (75W-90), while automatics use ATF.

80. Can I ship a transmission with fluid in it?
No, transmissions are drained before shipping to prevent leaks during transit.

ORDER STATUS & SUPPORT

81. How do I check my order status?
You can check your order status through your account on our website or contact us directly.

82. How can I contact Apex Drivetrain?
You can reach us by email at info@apexdrivetrain.com or through the contact form on our website.

83. What are your business hours?
We operate Monday through Sunday to ensure your questions are answered as quickly as possible.

84. How quickly do you respond to emails?
We typically respond within 24 hours, often much sooner during business hours.

85. Can I get help identifying which engine I need?
Absolutely. Send us details about your vehicle and project goals and we will help match you with the right unit.

TECHNICAL SPECIFICATIONS

86. What does “compression test” mean?
A compression test measures the pressure each cylinder can generate. Consistent readings across all cylinders indicate a healthy engine.

87. What does it mean if an engine is “non-compression testable”?
Some engines cannot be compression tested due to disassembly or missing components, but they are still mechanically sound.

88. What is VTEC?
VTEC (Variable Valve Timing and Lift Electronic Control) is Honda’s variable valve timing system that changes camshaft profiles at a set RPM to deliver a surge of power. It is one of the most iconic technologies in JDM engineering.

89. What does “twin-turbo” mean?
Twin-turbo refers to an engine equipped with two turbochargers. This can be configured sequentially (one small, one large) or parallel (two identical turbos), as seen on engines like the Toyota 2JZ-GTE and Nissan RB26DETT.

90. What is a boxer engine?
A boxer engine has horizontally opposed pistons that move outward and inward simultaneously, like a boxer’s fists. Subaru is the most prominent user of this design in the JDM world.

91. What is a rotary engine?
A rotary engine (Wankel engine) uses triangular rotors instead of pistons. Mazda’s 13B series is the most famous example, known for its high-revving, smooth power delivery and compact size.

92. What is an “open deck” vs. “closed deck” engine block?
An open deck block has coolant passages open at the top, offering better cooling. A closed deck block has minimal coolant openings, providing greater structural strength for high-boost applications.

93. What does “VVL” mean?
VVL stands for Variable Valve Lift and is Nissan’s version of variable valve technology, found in engines like the SR16VE N1 and VQ37VHR.

94. What does “MIVEC” mean?
MIVEC (Mitsubishi Innovative Valve timing and lift Electronic Control) is Mitsubishi’s variable valve timing system, found on engines like the 4G63 and 6G72.

95. What is AVCS?
AVCS (Active Valve Control System) is Subaru’s variable valve timing system used on their boxer engines to improve power and efficiency.

96. What does a “long block” include?
A long block includes the engine block, cylinder head, crankshaft, pistons, connecting rods, camshafts, and valvetrain assembled together.

97. What does a “short block” include?
A short block includes the engine block, crankshaft, pistons, and connecting rods, but no cylinder heads or valvetrain.

98. What is a “half-cut”?
A half-cut is the front section of a JDM vehicle, including the engine, transmission, wiring harness, ECU, dashboard, and sometimes the suspension, cut directly behind the front seats.

99. What is the difference between a stroker kit and a bore kit?
A stroker kit increases engine displacement by lengthening the crankshaft stroke, while a bore kit increases displacement by enlarging the cylinder diameter.

100. How do I contact Apex Drivetrain if my specific question wasn’t answered here?
We are always happy to help. If your question did not appear in this list, please reach out to us by email at info@apexdrivetrain.com and our team will get back to you promptly.