Factory build sheet
2021 Ram 3500 Regular CAB SRW
Build 3C7WRDAJ-M · 6.4L 8cyl · Four-wheel drive · Incomplete - Chassis CAB (Single CAB)
VIN positions 1 through 8 read 3C7WRDAJ and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every 3500 whose VIN starts 3C7WRDAJ and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 38 of them.
- Decoded Jul 7, 2026
- 38 known VINs
Factory specification
As filed by Ram 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
- 6.4 L
- Cylinders
- 8
- Configuration
- V-Shaped
- Engine model
- 410 hp 64l v8
- Engine manufacturer
- FCA
- Horsepower
- 410 hp
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Four-wheel drive
- Brake system
- Hydraulic
Body & chassis
- Body class
- Incomplete - Chassis Cab (Single Cab)
- NHTSA body type
- INCOMPLETE VEHICLE
- Cab type
- Regular
- Manufacturer
- CHRYSLER DE MEXICO TOLUCA
Weight rating
- GVWR class
- Class 2
- GVWR
- 6,001–10,000 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 | 3C7 | CHRYSLER DE MEXICO TOLUCA · World manufacturer identifier |
| 4–8 | WRDAJ | 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 |
38 vehicles carry this build
Every VIN we have decoded to 3C7WRDAJ-M shares the specification above.
- 38 Known VINs
- 3C7WRDAJ 1MG601548
- 3C7WRDAJ 7MG597943
- 3C7WRDAJ 0MG554111
- 3C7WRDAJ 4MG593560
- 3C7WRDAJ XMG644107
- 3C7WRDAJ 4MG554113
- 3C7WRDAJ 9MG620171
- 3C7WRDAJ 1MG578241
- 3C7WRDAJ 6MG572161
- 3C7WRDAJ 5MG604422
- 3C7WRDAJ 3MG540624
- 3C7WRDAJ 5MG644953
- 3C7WRDAJ XMG522167
- 3C7WRDAJ 7MG604423
- 3C7WRDAJ 2MG597946
- 3C7WRDAJ 0MG604425
- 3C7WRDAJ 6MG644105
- 3C7WRDAJ 2MG570648
- 3C7WRDAJ 8MG642971
- 3C7WRDAJ 1MG522168
- 3C7WRDAJ 9MG570646
- 3C7WRDAJ 4MG597947
- 3C7WRDAJ 4MG551051
- 3C7WRDAJ XMG641451
- 3C7WRDAJ 4MG604427
- 3C7WRDAJ 2MG554109
- 3C7WRDAJ 7MG637549
- 3C7WRDAJ XMG578240
- 3C7WRDAJ 8MG554115
- 3C7WRDAJ 7MG620170
- 3C7WRDAJ 9MG597944
- 3C7WRDAJ 8MG651752
- 3C7WRDAJ 8MG522166
- 3C7WRDAJ 0MG620172
- 3C7WRDAJ 1MG540623
- 3C7WRDAJ 7MG644954
- 3C7WRDAJ 6MG520108
- 3C7WRDAJ 9MG554110
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 38 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.