Equipment unit · VIN-decoded · NHTSA vPIC

2023 Pj

4P53F4924P1392840 · Trailer · TRAILER
Carriers run under2
31 mo
Inspections13
all-time
OOS inspections7
of 13
First seenDec 14, 2023
OK
Last seenJul 22, 2026
CO
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
4P53F4924P1392840
Make
Pj
Model
PJ
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
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
4P5

Deterministic · VIN positions 1–3.

Vehicle descriptor section
3F492

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
392840

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 · Dec 14, 2023 – Jul 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 22, 2026COII · Walk-around7OOSIRON HORSE LOGISTICS LLC 4466763342423N/TX
Jul 15, 2026TXII · Walk-around11OOSIRON HORSE LOGISTICS LLC 4466763342423N/TX
May 29, 2026TXII · Walk-around2IRON HORSE LOGISTICS LLC 4466763342423N/TX
Apr 17, 2026TNI · Full1OOSIRON HORSE LOGISTICS LLC 4466763342423N/TX
Feb 24, 2026TXII · Walk-around11OOSIRON HORSE LOGISTICS LLC 4466763382317T/TN
May 29, 2025ARIII · Driver-only0FIELDS & FIELDS LLC 3999273382317T/TX
Feb 6, 2025TXII · Walk-around7OOSFIELDS & FIELDS LLC 3999273382317T/TN
Jan 16, 2025TXI · Full0FIELDS & FIELDS LLC 3999273382317T/TN
Aug 2, 2024FLIII · Driver-only7FIELDS & FIELDS LLC 3999273382317T/TN
Jul 18, 2024TXI · Full0FIELDS & FIELDS LLC 3999273382317T/TN
Feb 19, 2024TXI · Full1FIELDS & FIELDS LLC 3999273382317T/TN
Feb 7, 2024NCI · Full5OOSFIELDS & FIELDS LLC 3999273382317T/TN
Dec 14, 2023OKI · Full2OOSFIELDS & FIELDS LLC 39992733822317T/TN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
IRON HORSE LOGISTICS LLC4466763Feb 24, 2026Jul 22, 20265TX
FIELDS & FIELDS LLC3999273Dec 14, 2023May 29, 20258TX
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.
342423NTX2IRON HORSE LOGISTICS LLCApr 17, 2026Jul 22, 20264
382317TTNIRON HORSE LOGISTICS LLCFeb 24, 2026Feb 24, 20261
382317TTXFIELDS & FIELDS LLCMay 29, 2025May 29, 20251
382317TTNFIELDS & FIELDS LLCFeb 7, 2024Feb 6, 20256
3822317TTNFIELDS & FIELDS LLCDec 14, 2023Dec 14, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026