Equipment unit · VIN-decoded · NHTSA vPIC

5DN144526JB000656

Not yet decoded
Carriers run under2
27 mo
Inspections2
all-time
OOS inspections1
of 2
First seenDec 4, 2023
CA
Last seenMar 20, 2026
CA
Inspected under 2 different carriers in 27 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
5DN

Deterministic · VIN positions 1–3.

Vehicle descriptor section
14452

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1988 or 2018

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

North American serial sequence
000656

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
WESTERN TRAILER COMPANY

Prefix basis · 112 decoded VINs at 100.0% prefix purity.

Model
Western Trailer Company

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.

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 4, 2023 – Mar 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 20, 2026CAII · Walk-around0F RUELAS TRANSPORTATION LLC 36715204RY5238/CA
Dec 4, 2023CAIII · Driver-only1OOSJT TRANSPORTATION LLC 29153474RY5238/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
F RUELAS TRANSPORTATION LLC3671520Mar 20, 2026Mar 20, 20261CA
JT TRANSPORTATION LLC2915347Dec 4, 2023Dec 4, 20231CA
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.
4RY5238CAF RUELAS TRANSPORTATION LLCMar 20, 2026Mar 20, 20261
4RY5238CAJT TRANSPORTATION LLCDec 4, 2023Dec 4, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC