Equipment unit · VIN-decoded · NHTSA vPIC

2006 Heil Trailer International

5HTAM252167D69706 · Trailer · TRAILER
Carriers run under2
34 mo
Inspections9
all-time
OOS inspections1
of 9
First seenAug 25, 2023
CA
Last seenJun 11, 2026
CA
Inspected under 2 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
5HTAM252167D69706
Make
Heil Trailer International
Model
Heil Trailer International
Model year
2006
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
AM252

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
2006 or 2036

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

North American serial sequence
D69706

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 · 45 decoded VINs at 100.0% prefix purity.

Model
Heil Trailer International

Prefix basis · 45 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
2006

Observed directly for this VIN via NHTSA vPIC.

Observed make
HEIL TRAILER INTERNATIONAL

Observed directly for this VIN via NHTSA vPIC.

Observed model
Heil Trailer International

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 · Aug 25, 2023 – Jun 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 11, 2026CAI · Full3OOSALLIANCE PETROLEUM TRANSPORT INC 32520634NH8124/CA
May 15, 2026CAI · Full1ALLIANCE PETROLEUM TRANSPORT INC 32520634NH8124/CA
Feb 27, 2026CAIII · Driver-only0WILLIAMS TANK LINES LLC 2290474NH8124/CA
Oct 22, 2024CAI · Full0WILLIAMS TANK LINES LLC 2290474NH8124/CA
Jun 21, 2024CAII · Walk-around0WILLIAMS TANK LINES LLC 2290474NH8124/CA
May 2, 2024CAI · Full3WILLIAMS TANK LINES LLC 2290474NH8124/CA
Oct 31, 2023CAV · Vehicle-only0WILLIAMS TANK LINES LLC 2290474NH8124/CA
Sep 14, 2023CAV · Vehicle-only0WILLIAMS TANK LINES LLC 2290474NH8124/CA
Aug 25, 2023CAI · Full0WILLIAMS TANK LINES LLC 2290474NH8124/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ALLIANCE PETROLEUM TRANSPORT INC3252063May 15, 2026Jun 11, 20262CA
WILLIAMS TANK LINES LLC229047Aug 25, 2023Feb 27, 20267CA
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.
4NH8124CAALLIANCE PETROLEUM TRANSPORT INCMay 15, 2026Jun 11, 20262
4NH8124CAWILLIAMS TANK LINES LLCAug 25, 2023Feb 27, 20267
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026