Factory build sheet
2017 GMC C6 Medium Conventional - 97.5 IN. BBC
Build 1GTH6DEN-H · 5.8L 6cyl · Four-wheel drive
VIN positions 1 through 8 read 1GTH6DEN and position 10 reads H. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every C6 whose VIN starts 1GTH6DEN and carries H in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 21 of them.
- Decoded Jul 7, 2026
- 21 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
- 5.8 L
- Cylinders
- 6
- Configuration
- In-Line
- Engine model
- GBD1-T
- Engine manufacturer
- Isuzu
- Fuel type
- Diesel
Drivetrain
- Drive type
- Four-wheel drive
- Brake system
- Air
Body & chassis
- NHTSA body type
- TRUCK
- Cab type
- MDHD: Conventional
- Series
- 6000 Medium Duty
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 6
- GVWR
- 19,501–26,000 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 | 1GT | GENERAL MOTORS LLC · World manufacturer identifier |
| 4–8 | H6DEN | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | H | Model year — 2017 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
21 vehicles carry this build
Every VIN we have decoded to 1GTH6DEN-H shares the specification above.
- 21 Known VINs
- 1 Listed for sale now
- 1GTH6DEN 1H1152100
- 1GTH6DEN 4H1161471
- 1GTH6DEN 0H1205353
- 1GTH6DEN XH1177464
- 1GTH6DEN 3H1177418
- 1GTH6DEN 9H1140714
- 1GTH6DEN 6H1143831
- 1GTH6DEN XH1176945
- 1GTH6DEN XH1140348
- 1GTH6DEN 9H1227822
- 1GTH6DEN 6H1206510
- 1GTH6DEN 4H1240638
- 1GTH6DEN 2H1176437
- 1GTH6DEN 6H1187733
- 1GTH6DEN 7H1211943
- 1GTH6DEN 5H1206983
- 1GTH6DEN 2H1168645
- 1GTH6DEN XH1162236
- 1GTH6DEN 5H1190218
- 1GTH6DEN 7H1100082
- 1GTH6DEN 1H1178681
Neighboring configurations
Other factory configurations of the C6, 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 21 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.