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2025 Ram 2500 BIG Horn/Lonestar specifications
Build 3C6MR4BJ-S · 6.4L 8cyl · Pickup
Explore the specifications recorded for VIN pattern 3C6MR4BJ-S. Start here to understand this version, then check the full VIN for an individual car.
NHTSA vPIC decode · Pattern-level specifications
- Decoded Sep 9, 2026
- 4 known VINs
- Engine
- 6.4L 8cyl V-Shaped
- Power
- 405 hp
- Transmission
- Automatic
- Body
- Pickup
- Seats
- 3
- Weight class
- Class 2H
The essentials, explained
Engine, transmission & body specifications
As filed by Ram with NHTSA for this VIN pattern. 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
- 405 hp 64l v8
- Engine manufacturer
- FCA
- Horsepower
- 405 hp
- Fuel type
- Gasoline
Drivetrain
- Drive type
- 4x2
- Transmission
- Automatic
- Forward speeds
- 8
- Brake system
- Hydraulic
Body & chassis
- Body class
- Pickup
- NHTSA body type
- TRUCK
- Seats
- 3
- Seat rows
- 1
- 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.
Driver assistance in the recorded decode
- Forward collision warning Standard
- Crash imminent braking Standard
- Adaptive cruise control Standard
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.
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.
VIN positions 1 through 8 read 3C6MR4BJ and position 10 reads S. Those nine characters define this build. Position 9 and positions 11 through 17 describe the check digit, assembly plant and production sequence; they are not part of this pattern.
| Positions | Characters | What they encode |
|---|---|---|
| 1–3 | 3C6 | CHRYSLER DE MEXICO TOLUCA · World manufacturer identifier |
| 4–8 | MR4BJ | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | S | Model year — 2025 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
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4 known VINs for this pattern
Every VIN we have decoded to 3C6MR4BJ-S is associated with this pattern in our records. Shared specifications do not mean shared history, condition or installed options.
- 4 Known VINs
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Useful answers, without the guesswork
2025 Ram 2500: specification questions
What engine code is recorded for 3C6MR4BJ-S?
The recorded engine model is 405 hp 64l v8. This is pattern-level data; confirm the installed engine on a vehicle that may have been modified.
Is this an original window sticker?
No. This page summarizes decoded VIN-pattern specifications. An original sticker or build record is needed to verify the optional equipment of a particular car.
Are the known VINs a production total?
No. These are VINs observed in our records. The count does not establish total production or rarity.
Does a missing specification mean the feature is absent?
No. Missing fields mean that a value is not recorded in this decode. Check the individual vehicle and its manufacturer documentation.
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 4 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.
About the NHTSA vPIC data source ↗
Pattern decode updated September 9, 2026.