Factory build sheet
2019 GMC Sierra HD Fleet/Base
Build 1GT12NEY-K · 6.6L 8cyl · Four-wheel drive · Pickup
VIN positions 1 through 8 read 1GT12NEY and position 10 reads K. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Sierra HD whose VIN starts 1GT12NEY and carries K in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 673 of them.
- Decoded Jul 7, 2026
- 673 known VINs
- 12 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
- Fuel type
- Diesel
Drivetrain
- Drive type
- Four-wheel drive
- Brake system
- Hydraulic
Body & chassis
- Body class
- Pickup
- NHTSA body type
- TRUCK
- Doors
- 4
- Cab type
- Crew/Super Crew/Crew Max
- 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.
What this build asks today
Asking prices of live dealer listings decoded to this exact configuration — narrower than the trim-level figure, because every car counted here shares the same engine, transmission and drivetrain.
$29,000 median asking price · 22 listings · as of Aug 30, 2026
Low 2% of listings $19,348 Top 2% of listings $38,453
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 | 12NEY | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | K | Model year — 2019 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
673 vehicles carry this build
Every VIN we have decoded to 1GT12NEY-K shares the specification above.
- 673 Known VINs
- 12 Listed for sale now
- 22 Priced listings
- $29,000 Median asking
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 Sierra HD, 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.
Prices are asking prices from 22 live dealer listings decoded to this build , last updated August 30, 2026 . They are what sellers ask, not what buyers paid.
Vehicle counts come from the 673 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.