Equipment unit · VIN-decoded · NHTSA vPIC

4U3S0051XML020020

Not yet decoded
Carriers run under2
30 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJul 27, 2023
NC
Last seenJan 20, 2026
NC
Inspected under 2 different carriers in 30 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
4U3

Deterministic · VIN positions 1–3.

Vehicle descriptor section
S0051

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

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
020020

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 · 124 decoded VINs at 100.0% prefix purity.

Model
X-L SPECIALIZED TRAILERS INC

Prefix basis · 124 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 · Jul 27, 2023 – Jan 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 20, 2026NCII · Walk-around3CAROLINA HEAVY HAULERS 1001318AM19538/NC
May 16, 2024NCIII · Driver-only0CAROLINA HEAVY HAULERS 1001318AM19538/NC
Jul 27, 2023NCIII · Driver-only0G S MATERIALS TRANSPORTATION INC 1077558AM19538/NC
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CAROLINA HEAVY HAULERS1001318May 16, 2024Jan 20, 20262NC
G S MATERIALS TRANSPORTATION INC1077558Jul 27, 2023Jul 27, 20231NC
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.
AM19538NCCAROLINA HEAVY HAULERSMay 16, 2024Jan 20, 20262
AM19538NCG S MATERIALS TRANSPORTATION INCJul 27, 2023Jul 27, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC