Mazda B-Series VIN Check

Which build runs owners report most

Characters 1–11 of a VIN identify the production run — plant, model year, body and engine — which splits the Mazda B-Series into 322 distinct batches rather than one nameplate. On the Mazda B-Series that distinction is not academic: its 322 runs average 1.3 complaints each, but the worst one — 4F4YR12D67P, a 2007 build — carries 4. That is 3.1× the model average, and the difference is invisible if you only look up the model name. The five runs at the top of this table hold 5% of every B-Series complaint on file.

Match the first eleven characters of your own VIN against these 12 runs. A hit means the fault reports below describe your exact build; no hit means yours sits among the 310 Mazda B-Series runs that drew fewer reports than any listed here.

Which model years to check twice

Ranked by complaints per production run, not by raw count — a raw count only tells you which year sold well. On the Mazda B-Series the spread between build years is 1.8×: a 2008 car draws 1.8 complaints per run, a 2006 one 1. Same badge, same factory in most cases — different year.

Heaviest year here is 2008 at 1.8 complaints per run; lightest is 2006 at 1. Every year listed is old enough to have finished collecting reports — the newest Mazda B-Series here is a 2009.

What to inspect on this car

One system accounts for 31% of everything Mazda B-Series owners report: Air Bags. Put it at the top of the inspection list — air bags is where 111 of the 414 complaints on file landed, and a mechanic given a named part finds more than one told to «look it over».

How serious were they

A complaint count on its own is a weak signal — a rattling trim panel and a stalling engine both count as one. Of the 414 reports on the Mazda B-Series, 8% involved a crash against 5.8% across all vehicles — above the norm, and that ratio matters more than the raw total.

Crash-related reports run 38% above the all-vehicle rate. That does not make the car unsafe on its own — but it does mean the faults owners report here tend to be the kind that end in an accident, not a squeak.

How this check works

The file behind this page holds 1,109,349 complaints filed with NHTSA between 1981 and 2026, across 297,579 production runs. The Mazda B-Series share of that is 414 complaints over 322 runs — 0.04% of everything on record. Each one carries the reporter's VIN prefix, the systems involved and whether the incident produced a crash, a fire or an injury.

Grouping those 322 runs by prefix is the whole point. Counted at model level the Mazda B-Series averages 1.3 complaints per run, which hides the fact that one run carries 4 of them — a 3.1× difference the model name alone will never show you. We publish the eleven characters in full — they identify a batch, not a car, since the six-digit serial number naming the individual vehicle is not part of them.

Everything above is built from those 414 safety records and nothing else, so title brands, odometer readings, auction history and insurance write-offs are not in it — they live in DMV and insurer databases rather than NHTSA's, and no free tool has them, this one included.