Factory build sheet
2006 GMC Sierra K1500
Build 1GTEK14Z-6 · 5.3L 8cyl · Four-wheel drive · Pickup
VIN positions 1 through 8 read 1GTEK14Z and position 10 reads 6. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Sierra whose VIN starts 1GTEK14Z and carries 6 in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 35 of them.
- Decoded Jul 7, 2026
- 35 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
- 5.3 L
- Cylinders
- 8
- Configuration
- V-Shaped
- Engine model
- L59
- Engine manufacturer
- GM
- Valve train
- Dual Overhead Cam (DOHC)
- Fuel type
- Flexible Fuel Vehicle (FFV)
- Electrification
- Mild hybrid
Drivetrain
- Drive type
- Four-wheel drive
- Brake system
- Hydraulic
Body & chassis
- Body class
- Pickup
- NHTSA body type
- TRUCK
- Doors
- 2
- Series
- 1500 (1/2 Ton)
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 2E
- GVWR
- 6,001–7,000 lb
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
The same build, other model years
GMC used the VIN pattern 1GTEK14Z for 6 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
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 | EK14Z | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | 6 | Model year — 2006 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
NHTSA safety ratings
Crash-test results are published per model year and body style, so they cover the 2006 GMC Sierra as a whole rather than this build alone.
Rollover
★★★★ ★ 4 / 5
11 recall campaigns are recorded for the 2006 Sierra. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.
35 vehicles carry this build
Every VIN we have decoded to 1GTEK14Z-6 shares the specification above.
- 35 Known VINs
- 1 Listed for sale now
- 1GTEK14Z 56E201743
- 1GTEK14Z 56Z120377
- 1GTEK14Z 56Z259960
- 1GTEK14Z 26E249457
- 1GTEK14Z 86E172528
- 1GTEK14Z 96Z134718
- 1GTEK14Z 06Z244234
- 1GTEK14Z 66Z122221
- 1GTEK14Z 76Z220755
- 1GTEK14Z 06Z125826
- 1GTEK14Z X6Z248971
- 1GTEK14Z 86Z136749
- 1GTEK14Z 76E202392
- 1GTEK14Z 56Z288181
- 1GTEK14Z 96E181559
- 1GTEK14Z 76Z177230
- 1GTEK14Z 66E289671
- 1GTEK14Z 26Z119199
- 1GTEK14Z 56Z260770
- 1GTEK14Z 96E285887
- 1GTEK14Z X6Z255449
- 1GTEK14Z 66Z285645
- 1GTEK14Z 76Z254923
- 1GTEK14Z 76Z141411
- 1GTEK14Z 76E249647
- 1GTEK14Z 26Z119610
- 1GTEK14Z 76Z229262
- 1GTEK14Z 26Z237608
- 1GTEK14Z X6Z253555
- 1GTEK14Z 46Z261232
- 1GTEK14Z 06Z124949
- 1GTEK14Z 56Z203761
- 1GTEK14Z 66Z236333
- 1GTEK14Z 56E188363
- 1GTEK14Z 86Z264151
Neighboring configurations
Other factory configurations of the Sierra, 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 35 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.