Equipment unit · VIN-decoded · NHTSA vPIC

2021 X-L Specialized Trailers Inc

4U3J05235ML020408 · Trailer · TRAILER
Carriers run under1
15 mo
Inspections5
all-time
OOS inspections1
of 5
First seenJan 9, 2024
OH
Last seenApr 11, 2025
MI
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
4U3J05235ML020408
Make
X-L Specialized Trailers Inc
Model
X-L SPECIALIZED TRAILERS INC
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 30, 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
4U3

Deterministic · VIN positions 1–3.

Vehicle descriptor section
J0523

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
1991 or 2021

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

North American serial sequence
020408

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
X-L SPECIALIZED TRAILERS INC

Prefix basis · 4 decoded VINs at 100.0% prefix purity.

Model
X-L SPECIALIZED TRAILERS INC

Prefix basis · 4 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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
X-L SPECIALIZED TRAILERS INC

Observed directly for this VIN via NHTSA vPIC.

Observed model
X-L SPECIALIZED TRAILERS INC

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 · Jan 9, 2024 – Apr 11, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 11, 2025MIIII · Driver-only1JL MILLER LLC 628405PT618K0/PA
Jun 27, 2024OHIII · Driver-only1OOSJL MILLER LLC 628405PT618K0/PA
May 6, 2024PAIII · Driver-only1JL MILLER LLC 628405PT618K0/PA
Feb 29, 2024WVII · Walk-around6JL MILLER LLC 628405PT618K0/PA
Jan 9, 2024OHIII · Driver-only1JL MILLER LLC 628405PT618K0/PA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JL MILLER LLC628405Jan 9, 2024Apr 11, 20255PA
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.
PT618K0PAJL MILLER LLCJan 9, 2024Apr 11, 20255
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 30, 2026