Factory build sheet
2021 Ram 2500 BIG Horn
Build 3C6MR5BJ-M · 6.4L 8cyl · Four-wheel drive · Pickup
VIN positions 1 through 8 read 3C6MR5BJ and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every 2500 whose VIN starts 3C6MR5BJ and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 29 of them.
- Decoded Jul 7, 2026
- 29 known VINs
This configuration is identical to 2021 Ram 2500 BIG Horn 6.4L 8cyl Pickup (57 vehicles). That page carries the full record.
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
- 64l v8 16v mpfi ohv
- Engine manufacturer
- FCA
- Horsepower
- 410 hp
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Four-wheel drive
- Brake system
- Hydraulic
Body & chassis
- Body class
- Pickup
- NHTSA body type
- TRUCK
- Cab type
- Regular
- Manufacturer
- CHRYSLER DE MEXICO TOLUCA
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.
The same build, other model years
Ram used the VIN pattern 3C6MR5BJ for 8 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
- 2014 SLT 6.4L 8cyl Pickup · 51 vehicles code E
- 2015 SLT 6.4L 8cyl Pickup · 39 vehicles code F
- 2016 SLT 6.4L 8cyl Pickup · 44 vehicles code G $28,291
- 2017 SLT 6.4L 8cyl Pickup · 24 vehicles code H
- 2018 SLT 6.4L 8cyl Pickup · 70 vehicles code J
- 2019 BIG Horn 6.4L 8cyl Pickup · 31 vehicles code K
-
2021 You are here code M
- 2022 BIG Horn, Lone Star 6.4L 8cyl Pickup · 94 vehicles code N $38,999
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 | 3C6 | CHRYSLER DE MEXICO TOLUCA · World manufacturer identifier |
| 4–8 | MR5BJ | 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 Ram 2500 as a whole rather than this build alone.
Rollover
★★★ ★★ 3 / 5
8 recall campaigns are recorded for the 2021 2500. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.
29 vehicles carry this build
Every VIN we have decoded to 3C6MR5BJ-M shares the specification above.
- 29 Known VINs
- 3C6MR5BJ XMG576097
- 3C6MR5BJ 9MG626441
- 3C6MR5BJ 6MG623030
- 3C6MR5BJ 0MG540404
- 3C6MR5BJ 0MG620477
- 3C6MR5BJ 5MG577402
- 3C6MR5BJ XMG576987
- 3C6MR5BJ 5MG576475
- 3C6MR5BJ 1MG506083
- 3C6MR5BJ 6MG519265
- 3C6MR5BJ 7MG577398
- 3C6MR5BJ 9MG507224
- 3C6MR5BJ 6MG650258
- 3C6MR5BJ 6MG672812
- 3C6MR5BJ 9MG650495
- 3C6MR5BJ 3MG579911
- 3C6MR5BJ 1MG601310
- 3C6MR5BJ 1MG576019
- 3C6MR5BJ 5MG671442
- 3C6MR5BJ 2MG625552
- 3C6MR5BJ 5MG507852
- 3C6MR5BJ 2MG603342
- 3C6MR5BJ 3MG619565
- 3C6MR5BJ XMG676829
- 3C6MR5BJ 9MG670925
- 3C6MR5BJ 1MG597369
- 3C6MR5BJ 0MG644410
- 3C6MR5BJ 1MG508111
- 3C6MR5BJ XMG643006
Neighboring configurations
Other factory configurations of the 2500, 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 29 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.