Equipment unit · VIN-decoded · NHTSA vPIC

2022 Pj

4P53F3421N1382667 · Trailer · TRAILER
Carriers run under2
11 mo
Inspections8
all-time
OOS inspections5
of 8
First seenJul 30, 2025
TX
Last seenJun 26, 2026
TX
Inspected under 2 different carriers in 11 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
4P53F3421N1382667
Make
Pj
Model
PJ
Model year
2022
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
3F342

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1992 or 2022

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

North American serial sequence
382667

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 · 9 decoded VINs at 100.0% prefix purity.

Model
PJ

Prefix basis · 9 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
2022

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 · Jul 30, 2025 – Jun 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 26, 2026TXII · Walk-around2OOSSTEPP TRANSPORT LLC 3827730TMP24GTZ/TX
Feb 10, 2026TXII · Walk-around3OOSSTEPP TRANSPORT LLC 3827730646123M/TX
Dec 31, 2025LAIII · Driver-only2STEPP TRANSPORT LLC 3827730646123M/TX
Oct 10, 2025TXII · Walk-around0STEPP TRANSPORT LLC 3827730646123M/TX
Oct 10, 2025TXII · Walk-around1OOSBIG HORN SUPPLY LLC 4281555646123M/TX
Sep 18, 2025TXII · Walk-around0STEPP TRANSPORT LLC 3827730646123M/TX
Aug 6, 2025LAI · Full1OOSSTEPP TRANSPORT LLC 3827730646123M/TX
Jul 30, 2025TXII · Walk-around2OOSSTEPP TRANSPORT LLC 3827730646123M/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
STEPP TRANSPORT LLC3827730Jul 30, 2025Jun 26, 20267TX
BIG HORN SUPPLY LLC4281555Oct 10, 2025Oct 10, 20251TX
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.
TMP24GTZTX2STEPP TRANSPORT LLCJun 26, 2026Jun 26, 20261
646123MTXSTEPP TRANSPORT LLCJul 30, 2025Feb 10, 20266
646123MTXBIG HORN SUPPLY LLCOct 10, 2025Oct 10, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 20, 2026