Free Tool
Free Semi-Truck VIN Decoder
Enter your 17-character VIN to see your truck's year, make, model, engine, and transmission — decoded instantly from the NHTSA database. No contact information required.
Your VIN is the 17-character code found on your truck's title, registration, or on the driver's side dashboard. It contains no I, O, or Q letters.
What a VIN Can — and Can't — Tell You
A Vehicle Identification Number (VIN) is a 17-character code that uniquely identifies your truck. It's assigned by the manufacturer and encoded with specific information about the truck's build.
What a VIN tells you:
- Year, make, and model — the basic identity of the truck.
- Engine manufacturer and displacement — what's under the hood.
- Transmission type and speeds — how power gets to the wheels.
- Gross Vehicle Weight Rating (GVWR) — the truck's weight class.
- Cab type — in some cases, whether it's a day cab or sleeper.
- Vehicle type — truck, bus, trailer, etc.
What a VIN doesn't tell you:
- Mileage — the VIN doesn't encode odometer reading.
- Condition — mechanical and cosmetic condition aren't in the VIN.
- Maintenance history — service records are separate from the VIN.
- Optional equipment — APUs, aluminum wheels, and other add-ons aren't always encoded.
- Sleeper size — the VIN may indicate cab type but not always sleeper dimensions.
- Aftertreatment condition — DPF, DOC, and SCR health aren't in the VIN.
That's why a purchase offer requires more than just the VIN. To get an accurate offer, you'll also need to provide mileage, condition, and photos. The VIN gives us the baseline specs; the rest tells us what the truck is actually worth today.