Equipment unit · VIN-decoded · NHTSA vPIC

2023 Pj

4P53F4928P1398818 · Trailer · TRAILER
Carriers run under2
16 mo
Inspections7
all-time
OOS inspections1
of 7
First seenOct 3, 2024
AL
Last seenFeb 24, 2026
SC
Inspected under 2 different carriers in 16 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
4P53F4928P1398818
Make
Pj
Model
PJ
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 20, 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
4P5

Deterministic · VIN positions 1–3.

Vehicle descriptor section
3F492

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1993 or 2023

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

North American serial sequence
398818

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
PJ

Prefix basis · 868 decoded VINs at 100.0% prefix purity.

Model
PJ

Prefix basis · 868 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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
PJ

Observed directly for this VIN via NHTSA vPIC.

Observed model
PJ

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

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 · Oct 3, 2024 – Feb 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 24, 2026SCIII · Driver-only0GRAND PRIX TRANSPORT INC 3033859879741M/TX
Dec 16, 2025NMI · Full0WESTMINSTER LOGISTICS LLC 3641489879741M/TX
Oct 9, 2025OKI · Full0WESTMINSTER LOGISTICS LLC 3641489879741M/TX
Sep 9, 2025NEIII · Driver-only5WESTMINSTER LOGISTICS LLC 3641489879741M/TX
May 15, 2025COII · Walk-around1WESTMINSTER LOGISTICS LLC 3641489879741M/TX
Dec 12, 2024ALI · Full0WESTMINSTER LOGISTICS LLC 3641489879741M/TX
Oct 3, 2024ALI · Full7OOSWESTMINSTER LOGISTICS LLC 3641489879741M/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GRAND PRIX TRANSPORT INC3033859Feb 24, 2026Feb 24, 20261TX
WESTMINSTER LOGISTICS LLC3641489Oct 3, 2024Dec 16, 20256TX
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.
879741MTXGRAND PRIX TRANSPORT INCFeb 24, 2026Feb 24, 20261
879741MTXWESTMINSTER LOGISTICS LLCOct 3, 2024Dec 16, 20256
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 20, 2026