Factory build sheet
2021 GMC Sierra Fleet/Base
Build 1GD08LE7-M · 6.6L 8cyl · Incomplete - Chassis CAB (Single CAB)
VIN positions 1 through 8 read 1GD08LE7 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 1GD08LE7 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
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
- Engine model
- L8T - SIDI, VVT, CAST IRON
- Fuel type
- Gasoline
Drivetrain
- Drive type
- 4x2
- Brake system
- Hydraulic
Body & chassis
- Body class
- Incomplete - Chassis Cab (Single Cab)
- NHTSA body type
- INCOMPLETE VEHICLE
- Doors
- 2
- Series
- 2500
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 2H
- GVWR
- 9,001–10,000 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 | 08LE7 | 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 |
32 vehicles carry this build
Every VIN we have decoded to 1GD08LE7-M shares the specification above.
- 32 Known VINs
- 1GD08LE7 8MF300643
- 1GD08LE7 XMF279794
- 1GD08LE7 6MF206647
- 1GD08LE7 5MF197648
- 1GD08LE7 6MF314881
- 1GD08LE7 XMF216730
- 1GD08LE7 8MF279583
- 1GD08LE7 2MF217015
- 1GD08LE7 2MF198305
- 1GD08LE7 9MF283402
- 1GD08LE7 1MF217099
- 1GD08LE7 5MF279752
- 1GD08LE7 6MF206681
- 1GD08LE7 3MF252355
- 1GD08LE7 1MF200447
- 1GD08LE7 3MF206749
- 1GD08LE7 7MF206740
- 1GD08LE7 4MF187239
- 1GD08LE7 7MF216605
- 1GD08LE7 XMF187228
- 1GD08LE7 3MF217489
- 1GD08LE7 5MF200967
- 1GD08LE7 9MF200535
- 1GD08LE7 1MF276573
- 1GD08LE7 XMF157534
- 1GD08LE7 3MF216620
- 1GD08LE7 2MF157544
- 1GD08LE7 2MF234963
- 1GD08LE7 9MF189911
- 1GD08LE7 0MF277715
- 1GD08LE7 8MF100202
- 1GD08LE7 XMF314107
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.