Factory build sheet
2021 Chevrolet Colorado Z71
Build 1GCGSDEN-M · 3.6L 6cyl · Pickup
VIN positions 1 through 8 read 1GCGSDEN and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Colorado whose VIN starts 1GCGSDEN and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 1,578 of them.
- Decoded Jul 7, 2026
- 1,578 known VINs
- 30 listed for sale now
Factory specification
As filed by Chevrolet 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
- 3.6 L
- Cylinders
- 6
- Configuration
- V-Shaped
- Engine model
- LGZ - DI, VVT, ALUM, VAR2, GEN 2
- Valve train
- Dual Overhead Cam (DOHC)
- Fuel type
- Gasoline
Drivetrain
- Drive type
- 4x2
- Brake system
- Hydraulic
Body & chassis
- Body class
- Pickup
- NHTSA body type
- TRUCK
- Doors
- 4
- Cab type
- Crew/Super Crew/Crew Max
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 1D
- GVWR
- 5,001–6,000 lb
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
Driver assistance, as built
- Forward collision warning Optional
- Crash imminent braking Optional
- Lane departure warning Optional
Systems the filing does not record are not listed above. Check the window sticker of the exact car before you rely on any single feature.
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.
$26,850 median asking price · 38 listings · as of Aug 30, 2026
Low 2% of listings $15,900 Top 2% of listings $32,399
The same build, other model years
Chevrolet used the VIN pattern 1GCGSDEN for 6 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
- 2017 Z71 7.4L 8cyl · 1,630 vehicles code H $19,377
- 2018 Z71 3.6L 6cyl Pickup · 1,745 vehicles code J $19,975
- 2019 Z71 3.6L 6cyl Pickup · 1,613 vehicles code K $21,575
- 2020 Z71 3.6L 6cyl Pickup · 792 vehicles code L $22,075
-
2021 You are here code M $26,850
- 2022 Z71 3.6L 6cyl Pickup · 3,044 vehicles code N $27,263
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 | 1GC | GENERAL MOTORS LLC · World manufacturer identifier |
| 4–8 | GSDEN | 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 |
NHTSA safety ratings
Crash-test results are published per model year and body style, so they cover the 2021 Chevrolet Colorado as a whole rather than this build alone.
Overall
★★★★ ★ 4 / 5
Frontal crash
★★★★ ★ 4 / 5
Side crash
★★★★★ 5 / 5
Rollover
★★★ ★★ 3 / 5
1 recall campaign is recorded for the 2021 Colorado. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.
1,578 vehicles carry this build
Every VIN we have decoded to 1GCGSDEN-M shares the specification above.
- 1,578 Known VINs
- 30 Listed for sale now
- 38 Priced listings
- $26,850 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 Colorado, 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.
- 2021 Work Truck 3.6L 6-cyl · 4WD 4,669 vehicles · $24,401 median
- 2021 LT 3.6L 6-cyl · 4WD 7,623 vehicles · $26,417 median
- 2021 Z71 3.6L 6-cyl · 4WD 10,079 vehicles · $28,934 median
- 2021 Work Truck 2.5L 4-cyl 2,241 vehicles · $17,415 median
- 2021 Work Truck 2.5L 4-cyl · 4WD 530 vehicles · $18,999 median
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 38 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 1,578 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.