Equipment unit · VIN-decoded · NHTSA vPIC

2022 Polar Tank Trailer

3H6KL4329N3112882 · Trailer · TRAILER
Carriers run under2
28 mo
Inspections7
all-time
OOS inspections1
of 7
First seenMar 27, 2024
CA
Last seenJul 21, 2026
CA
Inspected under 2 different carriers in 28 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
3H6KL4329N3112882
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2022
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 29, 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
3H6

Deterministic · VIN positions 1–3.

Vehicle descriptor section
KL432

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1992 or 2022

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

North American serial sequence
112882

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 · 70 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 70 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
2022

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 · Mar 27, 2024 – Jul 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 21, 2026CAII · Walk-around0KA SHENG TRANSPORTATION LLC 3782150ZWA8ZF/AZ
Jul 3, 2026NMII · Walk-around0KA SHENG TRANSPORTATION LLC 3782150ZWA8ZF/AZ
Dec 1, 2025CAII · Walk-around3OOSMOTTSTER TRUCKING LLC 3006539ZWA8ZF/AZ
Sep 4, 2025CAII · Walk-around0MOTTSTER TRUCKING LLC 3006539ZWA8ZF/AZ
Oct 10, 2024ORIII · Driver-only2MOTTSTER TRUCKING LLC 3006539ZWA8ZF/AZ
May 28, 2024COIII · Driver-only2MOTTSTER TRUCKING LLC 3006539ZWA8ZF/AZ
Mar 27, 2024CAI · Full5MOTTSTER TRUCKING LLC 3006539ZWA8ZF/AZ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KA SHENG TRANSPORTATION LLC3782150Jul 3, 2026Jul 21, 20262CA
MOTTSTER TRUCKING LLC3006539Mar 27, 2024Dec 1, 20255CA
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.
ZWA8ZFAZ2KA SHENG TRANSPORTATION LLCJul 3, 2026Jul 21, 20262
ZWA8ZFAZMOTTSTER TRUCKING LLCMar 27, 2024Dec 1, 20255
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026