Equipment unit · VIN-decoded · NHTSA vPIC

5HTSN422475T35934

Not yet decoded
Carriers run under2
23 mo
Inspections3
all-time
OOS inspections2
of 3
First seenOct 17, 2023
AK
Last seenSep 10, 2025
AK
Inspected under 2 different carriers in 23 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
4 · valid

Deterministic · position 9; calculated value 4.

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
T35934

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.

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 · Oct 17, 2023 – Sep 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 10, 2025AKII · Walk-around2OOSDAVIS BLOCK COMPANY INC 4215243744SM/AK
Oct 3, 2024AKI · Full5OOSSOURDOUGH EXPRESS INC 1251193744SM/AK
Oct 17, 2023AKII · Walk-around5DAVIS BLOCK COMPANY INC 4215243744SM/AK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DAVIS BLOCK COMPANY INC421524Oct 17, 2023Sep 10, 20252AK
SOURDOUGH EXPRESS INC125119Oct 3, 2024Oct 3, 20241AK
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.
3744SMAKDAVIS BLOCK COMPANY INCOct 17, 2023Sep 10, 20252
3744SMAKSOURDOUGH EXPRESS INCOct 3, 2024Oct 3, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC