Equipment unit · VIN-decoded · NHTSA vPIC

1995 Heil Trailer International

1HLS5M7B2S7U03970 · TRAILER
Carriers run under4
25 mo
Inspections5
all-time
OOS inspections1
of 5
First seenFeb 28, 2024
CA
Last seenMar 20, 2026
CA
Inspected under 4 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
1HLS5M7B2S7U03970
Make
Heil Trailer International
Model
Not decoded
Model year
1995
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 27, 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
S5M7B

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

Model year candidates
1995 or 2025

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

North American serial sequence
U03970

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
1995

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 · Feb 28, 2024 – Mar 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 20, 2026CAI · Full0J MARQUEZ TRUCKING LLC 35087424UC8491/CA
Dec 16, 2025CAI · Full3OOSJ MARQUEZ TRUCKING LLC 35087424UC8491/CA
Jul 31, 2024CAII · Walk-around3RG & SONS TRANSPORT LLC 36645724UC8491/CA
Feb 29, 2024CAI · Full0JNA TRANSPORTATION INC 29511604UC8491/CA
Feb 28, 2024CAII · Walk-around1DALE OTT CONSTRUCTION INC 9992534UC8491/CA
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
J MARQUEZ TRUCKING LLC3508742Dec 16, 2025Mar 20, 20262CA
RG & SONS TRANSPORT LLC3664572Jul 31, 2024Jul 31, 20241CA
JNA TRANSPORTATION INC2951160Feb 29, 2024Feb 29, 20241CA
DALE OTT CONSTRUCTION INC999253Feb 28, 2024Feb 28, 20241WI
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.
4UC8491CAJ MARQUEZ TRUCKING LLCDec 16, 2025Mar 20, 20262
4UC8491CARG & SONS TRANSPORT LLCJul 31, 2024Jul 31, 20241
4UC8491CAJNA TRANSPORTATION INCFeb 29, 2024Feb 29, 20241
4UC8491CADALE OTT CONSTRUCTION INCFeb 28, 2024Feb 28, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 27, 2026