Equipment unit · VIN-decoded · NHTSA vPIC

2008 Progress Tank

1P91382A18A509025 · Trailer · TRAILER
Carriers run under1
24 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJun 24, 2023
PA
Last seenJun 28, 2025
PA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1P91382A18A509025
Make
Progress Tank
Model
Progress Tank
Model year
2008
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 26, 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
1P9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
1382A

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
2008 or 2038

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

North American serial sequence
509025

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
2008

Observed directly for this VIN via NHTSA vPIC.

Observed make
PROGRESS TANK

Observed directly for this VIN via NHTSA vPIC.

Observed model
Progress Tank

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

  • 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 · Jun 24, 2023 – Jun 28, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 28, 2025PAII · Walk-around0DENALI OILFIELD SERVICES INC 3076339203B353/TX
May 30, 2025PAII · Walk-around2DENALI OILFIELD SERVICES INC 3076339203B353/TX
Jun 24, 2023PAII · Walk-around2DENALI OILFIELD SERVICES INC 3076339203B353/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DENALI OILFIELD SERVICES INC3076339Jun 24, 2023Jun 28, 20253PA
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.
203B353TXDENALI OILFIELD SERVICES INCJun 24, 2023Jun 28, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026