Equipment unit · VIN-decoded · NHTSA vPIC

1997 Heil Trailer International

5HTSN422XV7T04852 · Trailer · TRAILER
Carriers run under1
34 mo
Inspections8
all-time
OOS inspections1
of 8
First seenJul 19, 2023
SC
Last seenMay 28, 2026
SC
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
5HTSN422XV7T04852
Make
Heil Trailer International
Model
Heil Trailer International
Model year
1997
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 18, 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
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1997 or 2027

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

North American serial sequence
T04852

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
1997

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 · Jul 19, 2023 – May 28, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 28, 2026SCII · Walk-around1SOUTHERN TANK TRANSPORT INC 548304113251PT/SC
May 19, 2026SCII · Walk-around5OOSSOUTHERN TANK TRANSPORT INC 548304113251PT/SC
Dec 16, 2025SCIII · Driver-only2SOUTHERN TANK TRANSPORT INC 548304113251PT/SC
Sep 20, 2024SCII · Walk-around1SOUTHERN TANK TRANSPORT INC 548304PV95292/SC
Sep 10, 2024SCIII · Driver-only1SOUTHERN TANK TRANSPORT INC 548304PV95292/SC
Mar 20, 2024SCIII · Driver-only1SOUTHERN TANK TRANSPORT INC 548304PV95292/SC
Mar 19, 2024SCIII · Driver-only1SOUTHERN TANK TRANSPORT INC 548304PV95292/SC
Jul 19, 2023SCI · Full8SOUTHERN TANK TRANSPORT INC 548304PV95292/SC
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHERN TANK TRANSPORT INC548304Jul 19, 2023May 28, 20268SC
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.
113251PTSCSOUTHERN TANK TRANSPORT INCDec 16, 2025May 28, 20263
PV95292SCSOUTHERN TANK TRANSPORT INCJul 19, 2023Sep 20, 20245
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026