← Mazda Miata NB (1999-2005 US model years)
Will NA (1990-97) factory hardtop fit a Mazda Miata NB (1999-2005 US model years)?
Short answer: Yes, with extra parts or work. Reported
Yes, with extra parts or work: The Miata.net hardtop FAQ and a forum thread describe an NA hardtop going onto an NB with matching side striker plates and the rear-deck hold-down bolts.
| Part | NA (1990-97) factory hardtop |
|---|---|
| Vehicle | Mazda Miata NB (1999-2005 US model years) |
| Years | 1999-2005 |
| Trim / condition | needs NB-style strikers/rear bolts; 2003+ latch change |
| Verdict | Fits with extra parts or work |
| Confidence | 2 of 3 — Stated by one reasonably reputable source (retailer, shop, magazine). Not independently confirmed. |
| Last verified | 2026-10-20 (date the cited sources were last read) |
Details
The Miata.net hardtop FAQ and a forum thread describe an NA hardtop going onto an NB with matching side striker plates and the rear-deck hold-down bolts. The rear-defroster connector differs between generations, and cars built from late 2002 (2003 model year) use redesigned front latches, so check latch compatibility. Search excerpts only; confirm hardware before buying.
Other body fitment for the NB
- NB2 front bumper and headlights — Fits with extra parts or work
Sources
- The Miata Hard Top FAQ — Miata.net Garage (editorial; read 2026-10-20; search excerpt only)
- Installing a NA hardtop onto a NB — Grassroots Motorsports forum (forum thread; read 2026-10-20; search excerpt only)
Summaries are in our own words. Fitment is not guaranteed — disclaimer.
Report a correction — spotted an error or have a better source? Email hello@chassisdex.com.