How do I decode a Japanese Domestic Market vehicle identification number for a Mazda RX-7 FD?

To decode a Japanese Domestic Market (JDM) Mazda RX-7 FD, you will need to look up its chassis number, which is formatted differently than a standard 17-digit US VIN (typically looking like FD3S-XXXXXX) ⁹.

Here is how you can locate and decode the chassis number to find your vehicle's factory specifications:

1. Locate the Chassis Number

If you haven't already found the chassis number, you can locate it in three places on a JDM FD3S:

• Stamped directly onto the firewall.
• On a sticker inside the door opening.
• On a small metal plaque mounted just above the power brake booster ¹¹.

2. Decode the Vehicle Data

Since standard VIN decoders will not recognize the JDM format, you will need to use specific lookup tools:

• Mazda EPC Data: To find the most comprehensive details—including the exact build date, original paint code, and interior package—you can run the chassis number through mazda.epcdata.ru ³.
• Mazda Japan Grade Search: To verify the official trim level and specific grade packages, use Mazda Japan's official vehicle lookup tool at support.mazda.co.jp/grade-search/ ². The site is in Japanese, so you will need to run it through Google Translate ³.
• Series 8 Models (1999–2002): If your car is a later Series 8, you can look up its production details directly at gtr-registry.com/en-mazda-rx7-fd3s-series-8.php ².

3. Check Vehicle History (Optional)

If you are also trying to track down the car's auction sheets, verify the odometer, or check for undisclosed accident damage prior to export, services like japaneseodometercheck.com can be used to pull historical Japanese auction data ¹⁰.