Equipment unit · VIN-decoded · NHTSA vPIC

2008 Peterbilt 388

1XPWDB9X48D770439 · Truck-Tractor · TRUCK
Carriers run under3
30 mo
Inspections12
all-time
OOS inspections2
of 12
First seenJun 20, 2023
TX
Last seenDec 16, 2025
TX
Inspected under 3 different carriers in 30 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
1XPWDB9X48D770439
Make
Peterbilt
Model
388
Model year
2008
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 16, 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
WDB9X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
2008 or 2038

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

North American serial sequence
770439

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 · 112 decoded VINs at 100.0% prefix purity.

Model
388

Prefix basis · 112 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
2008

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 · Jun 20, 2023 – Dec 16, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 16, 2025TXII · Walk-around2OOSTRX TRUCKING LLC 42572331M54587/TX
Jun 23, 2025TXII · Walk-around2TRX TRUCKING LLC 42572331M54587/TX
Mar 31, 2025TXII · Walk-around0TRX TRUCKING LLC 42572331M54587/TX
Mar 20, 2025TXI · Full6TRX TRUCKING LLC 42572331M54587/TX
Feb 26, 2025TXII · Walk-around0TRX TRUCKING LLC 42572331M54587/TX
Jan 22, 2025TXII · Walk-around0TRX TRUCKING LLC 42572331M54587/TX
Nov 12, 2024TXII · Walk-around0TRX TRUCKING LLC 42572331M54587/TX
Aug 28, 2024TXII · Walk-around4TRX TRUCKING LLC 42572331M54587/TX
Aug 21, 2024TXII · Walk-around4TRX TRUCKING LLC 42572331M54587/TX
Aug 1, 2024TXII · Walk-around6OOSTRX TRUCKING LLC 42572331M54587/TX
Feb 19, 2024TXII · Walk-around8Y & M TRANSPORT SERVICES LLC 41222191M54587/TX
Jun 20, 2023TXI · Full10FRANCO'S TX TRUCKING LLC 34156501M54587/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRX TRUCKING LLC4257233Aug 1, 2024Dec 16, 202510TX
Y & M TRANSPORT SERVICES LLC4122219Feb 19, 2024Feb 19, 20241TX
FRANCO'S TX TRUCKING LLC3415650Jun 20, 2023Jun 20, 20231TX
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.
1M54587TXTRX TRUCKING LLCAug 1, 2024Dec 16, 202510
1M54587TXY & M TRANSPORT SERVICES LLCFeb 19, 2024Feb 19, 20241
1M54587TXFRANCO'S TX TRUCKING LLCJun 20, 2023Jun 20, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026