Equipment unit · VIN-decoded · NHTSA vPIC

2015 X-L Specialized Trailers Inc

4U3J05320FL014931 · Trailer · TRAILER
Carriers run under3
34 mo
Inspections8
all-time
OOS inspections3
of 8
First seenSep 14, 2023
TX
Last seenJul 19, 2026
CO
Inspected under 3 different carriers in 34 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
4U3J05320FL014931
Make
X-L Specialized Trailers Inc
Model
X-L SPECIALIZED TRAILERS INC
Model year
2015
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 23, 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
J0532

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1985 or 2015

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

North American serial sequence
014931

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 · 168 decoded VINs at 100.0% prefix purity.

Model
X-L SPECIALIZED TRAILERS INC

Prefix basis · 168 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
2015

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 · Sep 14, 2023 – Jul 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 19, 2026COII · Walk-around0AMERICAN AUTO TRANSPORT INC 12914291018072ST/IL
Jun 19, 2026NDIII · Driver-only0AMERICAN AUTO TRANSPORT INC 1291429XL60/IL
Mar 26, 2026TNIII · Driver-only0AMERICAN AUTO TRANSPORT INC 12914291018072ST/IL
Oct 30, 2025AZIII · Driver-only1IMC TRANS INC 25519911018072ST/IL
Jul 18, 2025NMII · Walk-around1OOSIMC TRANS INC 25519911018072ST/IL
Nov 20, 2023OHIII · Driver-only2TRANS-UNITED INC 70750SP198TSR/IN
Sep 29, 2023TNII · Walk-around1OOSTRANS-UNITED INC 70750NONE/IN
Sep 14, 2023TXII · Walk-around3OOSTRANS-UNITED INC 70750SP198TSR/IN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
AMERICAN AUTO TRANSPORT INC1291429Mar 26, 2026Jul 19, 20263IL
IMC TRANS INC2551991Jul 18, 2025Oct 30, 20252IL
TRANS-UNITED INC70750Sep 14, 2023Nov 20, 20233IN
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.
1018072STIL2AMERICAN AUTO TRANSPORT INCMar 26, 2026Jul 19, 20262
XL60IL2AMERICAN AUTO TRANSPORT INCJun 19, 2026Jun 19, 20261
1018072STILIMC TRANS INCJul 18, 2025Oct 30, 20252
SP198TSRINTRANS-UNITED INCSep 14, 2023Nov 20, 20232
NONEINTRANS-UNITED INCSep 29, 2023Sep 29, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026