Factory build sheet
2013 GMC Heavy Conventional 116 IN. BBC Heavy Conventional Aluminum
Build 1GTW7FCB-D · 6L 8cyl · Rear-wheel drive
VIN positions 1 through 8 read 1GTW7FCB and position 10 reads D. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Heavy Conventional whose VIN starts 1GTW7FCB and carries D in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 40 of them.
- Decoded Jul 7, 2026
- 40 known VINs
- 3 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 L
- Displacement (CI)
- 366
- Cylinders
- 8
- Configuration
- V-Shaped
- Engine manufacturer
- GM
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Rear-wheel drive
Body & chassis
- NHTSA body type
- TRUCK
- Cab type
- MDHD: Conventional
- Series
- 7000 Medium Duty
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 8
- GVWR
- 33,001 lb or less
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 | W7FCB | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | D | Model year — 2013 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
40 vehicles carry this build
Every VIN we have decoded to 1GTW7FCB-D shares the specification above.
- 40 Known VINs
- 3 Listed for sale now
- 1GTW7FCB 4D1158475
- 1GTW7FCB 7D1143937
- 1GTW7FCB 7D1147101
- 1GTW7FCB 4D1146665
- 1GTW7FCB 2D1182645
- 1GTW7FCB 5D1100827
- 1GTW7FCB 7D1180602
- 1GTW7FCB 7D1180566
- 1GTW7FCB 0D1146467
- 1GTW7FCB 0D1145206
- 1GTW7FCB 4D1182002
- 1GTW7FCB 0D1145397
- 1GTW7FCB 9D1145947
- 1GTW7FCB 3D1145863
- 1GTW7FCB 1D1145523
- 1GTW7FCB 8D1145275
- 1GTW7FCB 6D1180204
- 1GTW7FCB 9D1145088
- 1GTW7FCB 0D1182823
- 1GTW7FCB 1D1181809
- 1GTW7FCB XD1148517
- 1GTW7FCB 2D1189210
- 1GTW7FCB 7D1144537
- 1GTW7FCB 1D1148325
- 1GTW7FCB 5D1144178
- 1GTW7FCB 6D1182549
- 1GTW7FCB 1D1143402
- 1GTW7FCB 7D1191227
- 1GTW7FCB 8D1148757
- 1GTW7FCB XD1143530
- 1GTW7FCB XD1143494
- 1GTW7FCB XD1143978
- 1GTW7FCB 8D1145700
- 1GTW7FCB XD1144368
- 1GTW7FCB 8D1145003
- 1GTW7FCB XD1146105
- 1GTW7FCB 5D1143628
- 1GTW7FCB XD1144841
- 1GTW7FCB 9D1175563
- 1GTW7FCB 6D1147364
Neighboring configurations
Other factory configurations of the Heavy Conventional, 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.
- 2014 116 IN. BBC Heavy Conventional Aluminum 5.7L 8-cyl 78 vehicles · $14,578 median
- 2014 116 IN. BBC Heavy Conventional Aluminum 5.7L 8-cyl 1,291 vehicles · $9,995 median
- 2015 92.5 IN. BBC Heavy Conventional Steel 5.7L 8-cyl 37 vehicles
- 2015 116 IN. BBC Heavy Conventional Aluminum 8.2L 8-cyl · RWD 143 vehicles
- 2017 108 IN. BBC Heavy Conventional Aluminum 5.8L 6-cyl 109 vehicles
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 40 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.