Equipment unit · VIN-decoded · NHTSA vPIC

2020 Heil Trailer International

1HLS4M7F3L7T01729 · TRAILER
Carriers run under3
30 mo
Inspections3
all-time
OOS inspections0
of 3
First seenDec 20, 2023
TX
Last seenJun 23, 2026
TX
Inspected under 3 different carriers in 30 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
1HLS4M7F3L7T01729
Make
Heil Trailer International
Model
Not decoded
Model year
2020
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 21, 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
S4M7F

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1990 or 2020

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

North American serial sequence
T01729

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
2020

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 · Dec 20, 2023 – Jun 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 23, 2026TXII · Walk-around4TEXAS CHROME TRANSPORT INC 2203204053C475/TX
Feb 25, 2025TXII · Walk-around2RAD TRUCKING LTD 1152201053C475/TX
Dec 20, 2023TXII · Walk-around0MONICA SALAZAR INC 3295530053C475/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TEXAS CHROME TRANSPORT INC2203204Jun 23, 2026Jun 23, 20261TX
RAD TRUCKING LTD1152201Feb 25, 2025Feb 25, 20251TX
MONICA SALAZAR INC3295530Dec 20, 2023Dec 20, 20231TX
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.
053C475TX2TEXAS CHROME TRANSPORT INCJun 23, 2026Jun 23, 20261
053C475TXRAD TRUCKING LTDFeb 25, 2025Feb 25, 20251
053C475TXMONICA SALAZAR INCDec 20, 2023Dec 20, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 21, 2026