Equipment unit · VIN-decoded · NHTSA vPIC

2021 Pine Hill/bauxlite

1P9GU3637MG402090 · Trailer · TRAILER
Carriers run under2
35 mo
Inspections3
all-time
OOS inspections1
of 3
First seenAug 31, 2023
TX
Last seenJul 6, 2026
TX
Inspected under 2 different carriers in 35 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
1P9GU3637MG402090
Make
Pine Hill/bauxlite
Model
Pine Hill/Bauxlite
Model year
2021
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
GU363

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1991 or 2021

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

North American serial sequence
402090

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
PINE HILL/BAUXLITE

Prefix basis · 14 decoded VINs at 100.0% prefix purity.

Model
Pine Hill/Bauxlite

Prefix basis · 14 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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
PINE HILL/BAUXLITE

Observed directly for this VIN via NHTSA vPIC.

Observed model
Pine Hill/Bauxlite

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 · Aug 31, 2023 – Jul 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 6, 2026TXII · Walk-around2UNITED SHACK TRANSPORT LLC 3940472213B412/TX
Apr 12, 2024OKIII · Driver-only2OOSUNITED SHED TRANSPORT LLC 3031883213B412/TX
Aug 31, 2023TXII · Walk-around4UNITED SHED TRANSPORT LLC 3031883213B412/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
UNITED SHACK TRANSPORT LLC3940472Jul 6, 2026Jul 6, 20261TX
UNITED SHED TRANSPORT LLC3031883Aug 31, 2023Apr 12, 20242TX
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.
213B412TX2UNITED SHACK TRANSPORT LLCJul 6, 2026Jul 6, 20261
213B412TXUNITED SHED TRANSPORT LLCAug 31, 2023Apr 12, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026