Equipment unit · VIN-decoded · NHTSA vPIC

2013 Western Trailer Company

5DN144521DB001010 · Trailer · TRAILER
Carriers run under3
27 mo
Inspections6
all-time
OOS inspections3
of 6
First seenJan 4, 2024
CA
Last seenApr 17, 2026
CA
Inspected under 3 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

VIN
5DN144521DB001010
Make
Western Trailer Company
Model
Western Trailer Company
Model year
2013
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 25, 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
5DN

Deterministic · VIN positions 1–3.

Vehicle descriptor section
14452

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1983 or 2013

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

North American serial sequence
001010

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 · Jan 4, 2024 – Apr 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 17, 2026CAV · Vehicle-only1—ROLLING AG INC 32526024MJ4422/CA
Oct 14, 2025UTIII · Driver-only3OOSROLLING AG INC 32526024MJ4422/CA
Oct 9, 2025CAII · Walk-around4OOSROLLING AG INC 32526024MJ4422/CA
May 6, 2025COIII · Driver-only2—925 XPRESS INC 43602664MJ4422/CA
Jun 3, 2024ILII · Walk-around2—ANTONIO CASTILLO GONZALEZ 27035184MJ4422/CA
Jan 4, 2024CAII · Walk-around6OOSROLLING AG INC 32526024MJ4422/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROLLING AG INC3252602Jan 4, 2024Apr 17, 20264CA
925 XPRESS INC4360266May 6, 2025May 6, 20251CA
ANTONIO CASTILLO GONZALEZ2703518Jun 3, 2024Jun 3, 20241CA
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.
4MJ4422CA—ROLLING AG INCJan 4, 2024 → Apr 17, 20264
4MJ4422CA—925 XPRESS INCMay 6, 2025 → May 6, 20251
4MJ4422CA—ANTONIO CASTILLO GONZALEZJun 3, 2024 → Jun 3, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026