Equipment unit · VIN-decoded · NHTSA vPIC

2007 Heil Trailer International

5HTSN422277T12091 · Trailer · TRAILER
Carriers run under1
16 mo
Inspections7
all-time
OOS inspections1
of 7
First seenAug 29, 2024
TX
Last seenDec 28, 2025
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
5HTSN422277T12091
Make
Heil Trailer International
Model
Heil Trailer International
Model year
2007
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 20, 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
SN422

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

Model year candidates
2007 or 2037

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

North American serial sequence
T12091

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 · 454 decoded VINs at 100.0% prefix purity.

Model
Heil Trailer International

Prefix basis · 454 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
2007

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 29, 2024 – Dec 28, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 28, 2025TXII · Walk-around3SOUTHWEST INTERSTATE TRANSPORTATION INC 270551248B643/TX
Sep 2, 2025TXII · Walk-around0SOUTHWEST INTERSTATE TRANSPORTATION INC 270551248B643/TX
Apr 29, 2025TXI · Full0SOUTHWEST INTERSTATE TRANSPORTATION INC 270551248B643/TX
Apr 1, 2025TXI · Full1SOUTHWEST INTERSTATE TRANSPORTATION INC 270551248B643/TX
Nov 20, 2024TXII · Walk-around0SOUTHWEST INTERSTATE TRANSPORTATION INC 270551156C156/TX
Sep 9, 2024TXII · Walk-around2SOUTHWEST INTERSTATE TRANSPORTATION INC 270551156C156/TX
Aug 29, 2024TXI · Full2OOSSOUTHWEST INTERSTATE TRANSPORTATION INC 270551156C156/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHWEST INTERSTATE TRANSPORTATION INC270551Aug 29, 2024Dec 28, 20257TX
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.
248B643TXSOUTHWEST INTERSTATE TRANSPORTATION INCApr 1, 2025Dec 28, 20254
156C156TXSOUTHWEST INTERSTATE TRANSPORTATION INCAug 29, 2024Nov 20, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 20, 2026