Equipment unit · VIN-decoded · NHTSA vPIC

4P53F4926T1424990

Not yet decoded
Carriers run under2
2 mo
Inspections3
all-time
OOS inspections2
of 3
First seenAug 22, 2025
TN
Last seenOct 27, 2025
KS
Inspected under 2 different carriers in 2 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1996 or 2026

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

North American serial sequence
424990

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.

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 22, 2025 – Oct 27, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 27, 2025KSI · Full5OOSCASTLE MOUNTAIN HOTSHOT SERVICE LLC 4197581719475T/TN
Sep 17, 2025TNI · Full1CASTLE MOUNTAIN HOTSHOT SERVICE LLC 4197581719475T/TN
Aug 22, 2025TNI · Full7OOSCASON'S FREIGHT AND TRANSPORT LLC 3354596OSB51885/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CASTLE MOUNTAIN HOTSHOT SERVICE LLC4197581Sep 17, 2025Oct 27, 20252CO
CASON'S FREIGHT AND TRANSPORT LLC3354596Aug 22, 2025Aug 22, 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.
719475TTNCASTLE MOUNTAIN HOTSHOT SERVICE LLCSep 17, 2025Oct 27, 20252
OSB51885TXCASON'S FREIGHT AND TRANSPORT LLCAug 22, 2025Aug 22, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC