Factory build sheet
2021 Ram 3500 Regular CAB SRW
Build 3C7WRCAJ-M · 6.4L 8cyl · Incomplete - Chassis CAB (Single CAB)
VIN positions 1 through 8 read 3C7WRCAJ 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 3C7WRCAJ and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 37 of them.
- Decoded Jul 7, 2026
- 37 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
- 4x2
- 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 | WRCAJ | 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 |
37 vehicles carry this build
Every VIN we have decoded to 3C7WRCAJ-M shares the specification above.
- 37 Known VINs
- 3C7WRCAJ 8MG627185
- 3C7WRCAJ 2MG597942
- 3C7WRCAJ 1MG671724
- 3C7WRCAJ 2MG627179
- 3C7WRCAJ 4MG627183
- 3C7WRCAJ 6MG627167
- 3C7WRCAJ 8MG627171
- 3C7WRCAJ 7MG627176
- 3C7WRCAJ XMG627172
- 3C7WRCAJ 1MG627173
- 3C7WRCAJ 6MG627170
- 3C7WRCAJ 9MG627194
- 3C7WRCAJ 4MG627166
- 3C7WRCAJ 1MG627187
- 3C7WRCAJ 0MG627178
- 3C7WRCAJ 4MG553375
- 3C7WRCAJ 0MG627181
- 3C7WRCAJ 9MG627177
- 3C7WRCAJ 3MG671725
- 3C7WRCAJ XMG627186
- 3C7WRCAJ 8MG627168
- 3C7WRCAJ XMG671723
- 3C7WRCAJ 5MG627189
- 3C7WRCAJ 3MG627174
- 3C7WRCAJ 5MG671726
- 3C7WRCAJ 5MG627192
- 3C7WRCAJ 2MG627182
- 3C7WRCAJ 1MG627190
- 3C7WRCAJ 0MG627164
- 3C7WRCAJ 2MG627165
- 3C7WRCAJ 3MG627191
- 3C7WRCAJ XMG627169
- 3C7WRCAJ 7MG627193
- 3C7WRCAJ 3MG627188
- 3C7WRCAJ 5MG627175
- 3C7WRCAJ 6MG627184
- 3C7WRCAJ 9MG627180
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 37 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.