Equipment unit · VIN-decoded · NHTSA vPIC

2015 Peterbilt 388

1XPWD49X3FD251391 · Truck-Tractor · TRUCK
Carriers run under2
31 mo
Inspections7
all-time
OOS inspections1
of 7
First seenAug 25, 2023
IL
Last seenMar 4, 2026
TX
Inspected under 2 different carriers in 31 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPWD49X3FD251391
Make
Peterbilt
Model
388
Model year
2015
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
WD49X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1985 or 2015

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

North American serial sequence
251391

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 · 926 decoded VINs at 100.0% prefix purity.

Model
388

Prefix basis · 926 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
2015

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
388

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 · Aug 25, 2023 – Mar 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 4, 2026TXII · Walk-around2MTZ TRUCKING INC 19806211N50450/TX
Jul 22, 2025WVII · Walk-around1ALTOM TRANSPORT INC 297572P834133/IL
Feb 27, 2025TXII · Walk-around10MTZ TRUCKING INC 19806211N50450/TX
Jan 3, 2025TXII · Walk-around5MTZ TRUCKING INC 19806211N50450/TX
Jun 28, 2024TXII · Walk-around5MTZ TRUCKING INC 198062187W476V/TX
Jun 20, 2024TXII · Walk-around2OOSMTZ TRUCKING INC 198062167U611M/TX
Aug 25, 2023ILI · Full0ALTOM TRANSPORT INC 297572P834133/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MTZ TRUCKING INC1980621Jun 20, 2024Mar 4, 20265TX
ALTOM TRANSPORT INC297572Aug 25, 2023Jul 22, 20252IL
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.
1N50450TXMTZ TRUCKING INCJan 3, 2025Mar 4, 20263
P834133IL1ALTOM TRANSPORT INCAug 25, 2023Jul 22, 20252
87W476VTXMTZ TRUCKING INCJun 28, 2024Jun 28, 20241
67U611MTXMTZ TRUCKING INCJun 20, 2024Jun 20, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026