Factory build sheet
2021 GMC Sierra SLE
Build 1GD49TEY-M · 6.6L 8cyl · Four-wheel drive · Incomplete - Chassis CAB (Double CAB)
VIN positions 1 through 8 read 1GD49TEY and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Sierra whose VIN starts 1GD49TEY and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 34 of them.
- Decoded Jul 7, 2026
- 34 known VINs
- 1 listed for sale now
Factory specification
As filed by GMC 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
- 6.6 L
- Cylinders
- 8
- Configuration
- V-Shaped
- Engine model
- L5P - DI, DURAMAX, GEN 5 VAR. 1
- Turbocharged
- Yes
- Fuel type
- Diesel
Drivetrain
- Drive type
- Four-wheel drive
- Brake system
- Hydraulic
Body & chassis
- Body class
- Incomplete - Chassis Cab (Double Cab)
- NHTSA body type
- INCOMPLETE VEHICLE
- Doors
- 4
- Cab type
- Crew/Super Crew/Crew Max
- Series
- 3500
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 3
- GVWR
- 10,001–14,000 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 | 1GD | GENERAL MOTORS LLC · World manufacturer identifier |
| 4–8 | 49TEY | 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 |
34 vehicles carry this build
Every VIN we have decoded to 1GD49TEY-M shares the specification above.
- 34 Known VINs
- 1 Listed for sale now
- 1GD49TEY 2MF314058
- 1GD49TEY 2MF119755
- 1GD49TEY 4MF256230
- 1GD49TEY 9MF264789
- 1GD49TEY 2MF113809
- 1GD49TEY XMF231431
- 1GD49TEY 3MF160850
- 1GD49TEY 5MF240201
- 1GD49TEY 7MF138236
- 1GD49TEY 1MF249333
- 1GD49TEY 2MF161181
- 1GD49TEY XMF144175
- 1GD49TEY 3MF245350
- 1GD49TEY 5MF114131
- 1GD49TEY 4MF235233
- 1GD49TEY XMF253719
- 1GD49TEY 9MF228097
- 1GD49TEY 8MF206091
- 1GD49TEY 5MF317715
- 1GD49TEY 9MF249242
- 1GD49TEY XMF243482
- 1GD49TEY XMF313451
- 1GD49TEY 6MF313575
- 1GD49TEY 9MF146368
- 1GD49TEY 1MF235237
- 1GD49TEY 3MF228614
- 1GD49TEY 1MF102476
- 1GD49TEY 6MF311602
- 1GD49TEY 1MF190526
- 1GD49TEY XMF247208
- 1GD49TEY 5MF206226
- 1GD49TEY 0MF230210
- 1GD49TEY XMF206030
- 1GD49TEY 3MF160718
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 34 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.