Equipment unit · VIN-decoded · NHTSA vPIC

2017 Polar Tank Trailer

1PMS14229H1048643 · Trailer · TRAILER
Carriers run under2
21 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJun 22, 2023
OK
Last seenMar 10, 2025
KS
Inspected under 2 different carriers in 21 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
1PMS14229H1048643
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2017
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
1PM

Deterministic · VIN positions 1–3.

Vehicle descriptor section
S1422

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1987 or 2017

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

North American serial sequence
048643

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 · 126 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 126 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
2017

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 · Jun 22, 2023 – Mar 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 10, 2025KSII · Walk-around1STILES ENTERPRISES LLC 4201031258862/NC
Mar 18, 2024KSII · Walk-around2EXTREME TRANSFER LLC 13304531PMS14229H/NE
Jun 22, 2023OKII · Walk-around0EXTREME TRANSFER LLC 1330453258862/NE
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
STILES ENTERPRISES LLC4201031Mar 10, 2025Mar 10, 20251NE
EXTREME TRANSFER LLC1330453Jun 22, 2023Mar 18, 20242NE
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.
258862NCSTILES ENTERPRISES LLCMar 10, 2025Mar 10, 20251
1PMS14229HNEEXTREME TRANSFER LLCMar 18, 2024Mar 18, 20241
258862NEEXTREME TRANSFER LLCJun 22, 2023Jun 22, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026