Equipment unit · VIN-decoded · NHTSA vPIC

2023 Polar Tank Trailer

1PMKD4427P7117443 · Trailer · TRAILER
Carriers run under2
33 mo
Inspections6
all-time
OOS inspections0
of 6
First seenJul 7, 2023
TX
Last seenApr 15, 2026
TX
Inspected under 2 different carriers in 33 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
1PMKD4427P7117443
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 23, 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
KD442

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1993 or 2023

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

North American serial sequence
117443

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
POLAR TANK TRAILER

Prefix basis · 13 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 13 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
2023

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 7, 2023 – Apr 15, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 15, 2026TXI · Full2COASTAL TRANSPORT COMPANY INC 36647203B811/TX
Sep 18, 2025TXII · Walk-around4TEPOKATZ FLATBED LLC 2499022203B811/TX
Aug 11, 2025TXI · Full0COASTAL TRANSPORT COMPANY INC 36647203B811/TX
Feb 25, 2025TXI · Full0COASTAL TRANSPORT COMPANY INC 36647203B811/TX
Nov 14, 2024TXI · Full0COASTAL TRANSPORT COMPANY INC 36647203B811/TX
Jul 7, 2023TXI · Full0COASTAL TRANSPORT COMPANY INC 36647203B811/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
COASTAL TRANSPORT COMPANY INC36647Jul 7, 2023Apr 15, 20265TX
TEPOKATZ FLATBED LLC2499022Sep 18, 2025Sep 18, 20251TX
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.
203B811TXCOASTAL TRANSPORT COMPANY INCJul 7, 2023Apr 15, 20265
203B811TXTEPOKATZ FLATBED LLCSep 18, 2025Sep 18, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026