Factory build sheet

2021 Mazda MAZDA3 MAZDA3 With Preferred Package

Build 3MZBPBCM-M · 2.5L 4cyl · Four-wheel drive · Sedan

VIN positions 1 through 8 read 3MZBPBCM and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.

Every MAZDA3 whose VIN starts 3MZBPBCM and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 229 of them.

  • Decoded Jul 7, 2026
  • 229 known VINs
  • 2 listed for sale now

Factory specification

As filed by Mazda with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.

Engine

Displacement
2.5 L
Cylinders
4
Configuration
In-Line
Engine model
PY Cylinder Deactivation
Engine manufacturer
MAZDA
Horsepower
186 hp
Fuel type
Gasoline

Drivetrain

Drive type
Four-wheel drive
Transmission
Automatic
Forward speeds
6

Body & chassis

Body class
Sedan/Saloon
NHTSA body type
PASSENGER CAR
Seats
5
Seat rows
2
Manufacturer
MAZDA MOTOR MANUFACTURING DE MEXICO S.A. DE C.V.

Weight rating

GVWR class
Class 1
GVWR
6,000 lb or less

Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.

Driver assistance, as built

  • Lane departure warning Standard
  • Lane keeping assistance Standard
  • Adaptive cruise control Standard
  • Blind spot warning Standard

Systems the filing does not record are not listed above. Check the window sticker of the exact car before you rely on any single feature.

The same build, other model years

Mazda used the VIN pattern 3MZBPBCM for 5 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.

$18,426 2020 $22,500 2023 $23,995 2024 $25,289 2025

How this VIN pattern is read

A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.

Positions Characters What they encode
1–3 3MZ MAZDA MOTOR MANUFACTURING DE MEXICO S.A. DE C.V. · World manufacturer identifier
4–8 BPBCM Model, body style, engine and restraint system
9 × Check digit — computed per vehicle, not part of the build
10 M Model year — 2021
11 × Assembly plant
12–17 ×××××× Production sequence number, unique to each vehicle

NHTSA safety ratings

Crash-test results are published per model year and body style, so they cover the 2021 Mazda MAZDA3 as a whole rather than this build alone.

Overall

★★★★★ 5 / 5

Frontal crash

★★★★★ 5 / 5

Side crash

★★★★★ 5 / 5

Rollover

★★★★★ 5 / 5

1 recall campaign is recorded for the 2021 MAZDA3. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.

229 vehicles carry this build

Every VIN we have decoded to 3MZBPBCM-M shares the specification above.

  • 229 Known VINs
  • 2 Listed for sale now

Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.

Browse all 229 VINs of this build →

Neighboring configurations

Other factory configurations of the MAZDA3, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.

Keep going

Where this data comes from

Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.

Vehicle counts come from the 229 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.