Factory build sheet
2009 Chevrolet Avalanche LT
Build 3GNFK223-9 · 5.3L 8cyl · Four-wheel drive · Sport Utility Truck (SUT)
VIN positions 1 through 8 read 3GNFK223 and position 10 reads 9. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Avalanche whose VIN starts 3GNFK223 and carries 9 in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 115 of them.
- Decoded Jul 7, 2026
- 115 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
- 5.3 L
- Cylinders
- 8
- Configuration
- V-Shaped
- Engine model
- LC9
- Engine manufacturer
- GM
- Valve train
- Overhead Valve (OHV)
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Four-wheel drive
- Brake system
- Hydraulic
Body & chassis
- Body class
- Sport Utility Truck (SUT)
- NHTSA body type
- MULTIPURPOSE PASSENGER VEHICLE (MPV)
- Doors
- 4
- Series
- 1/2 Ton
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 2F
- GVWR
- 7,001–8,000 lb
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
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 | FK223 | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | 9 | Model year — 2009 |
| 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 2009 Chevrolet Avalanche as a whole rather than this build alone.
Rollover
★★★ ★★ 3 / 5
5 recall campaigns are recorded for the 2009 Avalanche. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.
115 vehicles carry this build
Every VIN we have decoded to 3GNFK223-9 shares the specification above.
- 115 Known VINs
- 1 Listed for sale now
Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.
Neighboring configurations
Other factory configurations of the Avalanche, 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.
- 2009 LTZ 5.3L 8-cyl · Sport utility truck sut · 4WD 171 vehicles
- 2009 LTZ 6L 8-cyl · Sport utility truck sut · 4WD 52 vehicles
- 2010 LS 5.3L 8-cyl · Sport utility truck sut 223 vehicles · $11,495 median
- 2010 LTZ 5.3L 8-cyl · Sport utility truck sut 219 vehicles · $11,999 median
- 2010 LTZ 5.3L 8-cyl · Sport utility truck sut · 4WD 1,024 vehicles · $12,750 median
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 115 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.