Equipment unit · VIN-decoded · NHTSA vPIC

2005 Polar Tank Trailer

1PMA1U32251028157 · Trailer · TRAILER
Carriers run under2
24 mo
Inspections10
all-time
OOS inspections0
of 10
First seenJan 30, 2024
CA
Last seenJan 15, 2026
CA
Inspected under 2 different carriers in 24 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
1PMA1U32251028157
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2005
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
1PM

Deterministic · VIN positions 1–3.

Vehicle descriptor section
A1U32

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

Model year candidates
2005 or 2035

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

North American serial sequence
028157

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
2005

Observed directly for this VIN via NHTSA vPIC.

Observed make
POLAR TANK TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Polar Tank Trailer

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 · Jan 30, 2024 – Jan 15, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 15, 2026CAIII · Driver-only1D'LUCIO'S LOGISTICS INC 33024074MK3314/CA
Nov 13, 2025CAII · Walk-around0D'LUCIO'S LOGISTICS INC 33024074MK3314/CA
Aug 20, 2025CAIII · Driver-only1SOUTHBAY TRANSPORT INC 18379734MK3314/CA
Aug 4, 2025USI · Full4SOUTHBAY TRANSPORT INC 18379734MK3314/CA
Jul 8, 2025USI · Full1SOUTHBAY TRANSPORT INC 18379734MK3314/CA
Jun 9, 2025USI · Full2SOUTHBAY TRANSPORT INC 18379734MK3314/CA
May 2, 2025CAII · Walk-around0SOUTHBAY TRANSPORT INC 18379734MK3314/CA
Apr 24, 2024USII · Walk-around0SOUTHBAY TRANSPORT INC 18379734MK3314/CA
Apr 5, 2024CAII · Walk-around0SOUTHBAY TRANSPORT INC 18379734MK3314/CA
Jan 30, 2024CAIII · Driver-only0SOUTHBAY TRANSPORT INC 18379734MK3314/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
D'LUCIO'S LOGISTICS INC3302407Nov 13, 2025Jan 15, 20262CA
SOUTHBAY TRANSPORT INC1837973Jan 30, 2024Aug 20, 20258CA
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.
4MK3314CAD'LUCIO'S LOGISTICS INCNov 13, 2025Jan 15, 20262
4MK3314CASOUTHBAY TRANSPORT INCJan 30, 2024Aug 20, 20258
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026