Equipment unit · VIN-decoded · NHTSA vPIC

2021 Heil Trailer International

1HLA3A7B7M7H56078 · TRAILER
Carriers run under2
25 mo
Inspections16
all-time
OOS inspections5
of 16
First seenJul 13, 2024
NM
Last seenAug 5, 2026
CA
Inspected under 2 different carriers in 25 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
1HLA3A7B7M7H56078
Make
Heil Trailer International
Model
Not decoded
Model year
2021
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Sep 3, 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
1HL

Deterministic · VIN positions 1–3.

Vehicle descriptor section
A3A7B

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
H56078

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2021

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
Not established

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 13, 2024 – Aug 5, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 5, 2026CAI · Full3HR SERVICES LLC 24391724VU1205/CA
Jun 12, 2026CAII · Walk-around0HR SERVICES LLC 24391724VU1205/CA
Apr 17, 2026CAI · Full4OOSHR SERVICES LLC 24391724VU1205/CA
Apr 17, 2026CAI · Full0HR SERVICES LLC 24391724VU1205/CA
Dec 11, 2025CAII · Walk-around3OOSHR SERVICES LLC 24391724VU1205/CA
Nov 19, 2025CAII · Walk-around2HR SERVICES LLC 24391724VU1205/CA
May 1, 2025NVII · Walk-around1HR SERVICES LLC 24391724VU1205/CA
Apr 13, 2025CAI · Full3OOSHR SERVICES LLC 24391724VU1205/CA
Mar 13, 2025CAIII · Driver-only2HR SERVICES LLC 24391724VU1205/CA
Feb 19, 2025CAII · Walk-around0HR SERVICES LLC 24391724VU1205/CA
Jan 26, 2025CAI · Full1HR SERVICES LLC 24391724VU1205/CA
Jan 20, 2025CAII · Walk-around0HR SERVICES LLC 24391724VU1205/CA
Jan 6, 2025CAII · Walk-around0HR SERVICES LLC 24391724VU1205/CA
Dec 19, 2024CAI · Full5OOSHR SERVICES LLC 24391724VU1205/CA
Nov 14, 2024CAI · Full5OOSHR SERVICES LLC 24391724VU1205/CA
Jul 13, 2024NMII · Walk-around0VAN DYK TANK LINES INC 12852594VU1205/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HR SERVICES LLC2439172Nov 14, 2024Aug 5, 202615NV
VAN DYK TANK LINES INC1285259Jul 13, 2024Jul 13, 20241CA
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.
4VU1205CA2HR SERVICES LLCNov 14, 2024Aug 5, 202615
4VU1205CAVAN DYK TANK LINES INCJul 13, 2024Jul 13, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Sep 3, 2026