Equipment unit · VIN-decoded · NHTSA vPIC

2016 Heil Trailer International

5HTAB4531G7K81554 · Trailer · TRAILER
Carriers run under2
33 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJun 18, 2023
MA
Last seenMar 31, 2026
US
Inspected under 2 different carriers in 33 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
5HTAB4531G7K81554
Make
Heil Trailer International
Model
Not decoded
Model year
2016
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 17, 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
5HT

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AB453

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1986 or 2016

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

North American serial sequence
K81554

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
HEIL TRAILER INTERNATIONAL

Prefix basis · 20 decoded VINs at 100.0% prefix purity.

Model
Heil Trailer International

Prefix basis · 20 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
2016

Observed directly for this VIN via NHTSA vPIC.

Observed make
HEIL TRAILER INTERNATIONAL

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

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 · Jun 18, 2023 – Mar 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 31, 2026USI · Full0IRVING OIL RETAIL SALES US LLC 4491595T473187/NH
Dec 1, 2023NHII · Walk-around0IRVING OIL TERMINALS INCORPORATED 812435T473187/NH
Oct 6, 2023NHI · Full0IRVING OIL TERMINALS INCORPORATED 812435T473187/NH
Jun 18, 2023MAIII · Driver-only1IRVING OIL TERMINALS INCORPORATED 812435T473187/NH
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
IRVING OIL RETAIL SALES US LLC4491595Mar 31, 2026Mar 31, 20261NH
IRVING OIL TERMINALS INCORPORATED812435Jun 18, 2023Dec 1, 20233NH
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.
T473187NH2IRVING OIL RETAIL SALES US LLCMar 31, 2026Mar 31, 20261
T473187NH2IRVING OIL TERMINALS INCORPORATEDJun 18, 2023Dec 1, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 17, 2026