Equipment unit · VIN-decoded · NHTSA vPIC

2018 Peterbilt 378

1XPFDB9X8JN263561 · Truck-Tractor · TRUCK
Carriers run under1
28 mo
Inspections5
all-time
OOS inspections2
of 5
First seenMar 5, 2024
CA
Last seenJul 13, 2026
NM
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPFDB9X8JN263561
Make
Peterbilt
Model
378
Model year
2018
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 12, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1XP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
FDB9X

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1988 or 2018

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
263561

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
PETERBILT

Prefix basis · 524 decoded VINs at 100.0% prefix purity.

Model
378

Prefix basis · 524 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2018

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
378

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Mar 5, 2024 – Jul 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 13, 2026NMII · Walk-around1HIGH COUNTRY FREIGHT LLC 2962314AM58453/AZ
Nov 12, 2025TXII · Walk-around2HIGH COUNTRY FREIGHT LLC 2962314AM58453/AZ
May 22, 2025AZII · Walk-around11OOSHIGH COUNTRY FREIGHT LLC 2962314AM58453/AZ
Oct 1, 2024NMII · Walk-around1HIGH COUNTRY FREIGHT LLC 2962314AL28151/AZ
Mar 5, 2024CAI · Full4OOSHIGH COUNTRY FREIGHT LLC 2962314AL28151/AZ
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HIGH COUNTRY FREIGHT LLC2962314Mar 5, 2024Jul 13, 20265AZ
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
AM58453AZ1HIGH COUNTRY FREIGHT LLCMay 22, 2025Jul 13, 20263
AL28151AZHIGH COUNTRY FREIGHT LLCMar 5, 2024Oct 1, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026