Equipment unit · VIN-decoded · NHTSA vPIC

2018 Utility Trailer Manufacturer

1UYVS2531J3163031 · Trailer · TRAILER
Axles · 2 axlesBody · VanLength · 53 ft
Carriers run under3
8 mo
Inspections3
all-time
OOS inspections1
of 3
First seenMar 10, 2025
US
Last seenNov 6, 2025
TN
Inspected under 3 different carriers in 8 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
1UYVS2531J3163031
Make
Utility Trailer Manufacturer
Model
Utility Trailer Manufacturer
Model year
2018
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 26, 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
1UY

Deterministic · VIN positions 1–3.

Vehicle descriptor section
VS253

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
163031

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
UTILITY TRAILER MANUFACTURER

Prefix basis · 107,512 decoded VINs at 100.0% prefix purity.

Model
Utility Trailer Manufacturer

Prefix basis · 107,512 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
2018

Observed directly for this VIN via NHTSA vPIC.

Observed make
UTILITY TRAILER MANUFACTURER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Utility Trailer Manufacturer

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.

VIN-level rule claims

Rules published for individual VIN positions beyond the prefix — applied with the WMI, prefix, and model-year guards each rule was validated under. Year-scoped rules were checked against model year 2018, established by the federal observation agreeing with a position-10 candidate.

Axle configuration
2 axles

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

Body family
Van

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

Trailer length
53 ft

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

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 · Mar 10, 2025 – Nov 6, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 6, 2025TNI · Full1OOSROYAL FREIGHT LP 959806U797366/TN
Apr 17, 2025TXIII · Driver-only0AUTO EXPRESS CINCO GARZA DE TAMAULIPAS SA DE CV 554940U797366/TN
Mar 10, 2025USI · Full6AUTOTRANSPORTES VARELA DAVILA SA DE CV 1716824U797366/TN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROYAL FREIGHT LP959806Nov 6, 2025Nov 6, 20251TX
AUTO EXPRESS CINCO GARZA DE TAMAULIPAS SA DE CV554940Apr 17, 2025Apr 17, 20251TA
AUTOTRANSPORTES VARELA DAVILA SA DE CV1716824Mar 10, 2025Mar 10, 20251TA
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.
U797366TNROYAL FREIGHT LPNov 6, 2025Nov 6, 20251
U797366TNAUTO EXPRESS CINCO GARZA DE TAMAULIPAS SA DE CVApr 17, 2025Apr 17, 20251
U797366TNAUTOTRANSPORTES VARELA DAVILA SA DE CVMar 10, 2025Mar 10, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026