Factory build sheet
2021 Chevrolet Blazer L
Build 3GNKBARA-M · 2.5L 4cyl · Front-wheel drive · Sport Utility Vehicle (SUV)
VIN positions 1 through 8 read 3GNKBARA and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Blazer whose VIN starts 3GNKBARA and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 32 of them.
- Decoded Jul 7, 2026
- 32 known VINs
- 1 listed for sale now
Factory specification
As filed by Chevrolet 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
- LCV
- Valve train
- Dual Overhead Cam (DOHC)
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Front-wheel drive
- Transmission
- Automatic
- Forward speeds
- 9
- Brake system
- Hydraulic
Body & chassis
- Body class
- Sport Utility Vehicle (SUV)/Multi-Purpose Vehicle (MPV)
- NHTSA body type
- MULTIPURPOSE PASSENGER VEHICLE (MPV)
- Doors
- 4
- Seats
- 5
- Seat rows
- 2
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 2E
- GVWR
- 6,001–7,000 lb
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
Driver assistance, as built
- Forward collision 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
Chevrolet used the VIN pattern 3GNKBARA for 3 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
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 | 3GN | GENERAL MOTORS LLC · World manufacturer identifier |
| 4–8 | KBARA | 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 Chevrolet Blazer as a whole rather than this build alone.
Overall
★★★★★ 5 / 5
Frontal crash
★★★★★ 5 / 5
Side crash
★★★★★ 5 / 5
Rollover
★★★★ ★ 4 / 5
1 recall campaign is recorded for the 2021 Blazer. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.
32 vehicles carry this build
Every VIN we have decoded to 3GNKBARA-M shares the specification above.
- 32 Known VINs
- 1 Listed for sale now
- 3GNKBARA 8MS512146
- 3GNKBARA 6MS571938
- 3GNKBARA 9MS580133
- 3GNKBARA 8MS567048
- 3GNKBARA 0MS587679
- 3GNKBARA 7MS580034
- 3GNKBARA 7MS574850
- 3GNKBARA 5MS586026
- 3GNKBARA 3MS548388
- 3GNKBARA 0MS576889
- 3GNKBARA 1MS542699
- 3GNKBARA XMS542698
- 3GNKBARA 6MS548384
- 3GNKBARA 7MS558115
- 3GNKBARA 2MS574836
- 3GNKBARA 4MS574109
- 3GNKBARA 5MS500715
- 3GNKBARA 0MS501626
- 3GNKBARA 0MS568419
- 3GNKBARA 2MS561696
- 3GNKBARA 8MS587171
- 3GNKBARA 0MS544640
- 3GNKBARA 0MS582580
- 3GNKBARA 4MS526612
- 3GNKBARA 6MS503140
- 3GNKBARA 8MS504029
- 3GNKBARA 4MS575454
- 3GNKBARA 9MS508977
- 3GNKBARA XMS570887
- 3GNKBARA 1MS581602
- 3GNKBARA 1MS580031
- 3GNKBARA 9MS568418
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 32 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.