Equipment unit · VIN-decoded · NHTSA vPIC

2018 Viking Trailer

1V9DS4831JN062321 · Trailer · TRAILER
Carriers run under2
22 mo
Inspections4
all-time
OOS inspections2
of 4
First seenJul 12, 2023
MD
Last seenMay 20, 2025
MD
Inspected under 2 different carriers in 22 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
1V9DS4831JN062321
Make
Viking Trailer
Model
Viking Trailer
Model year
2018
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 9, 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
1V9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DS483

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1988 or 2018

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

North American serial sequence
062321

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
VIKING TRAILER

Prefix basis · 16 decoded VINs at 100.0% prefix purity.

Model
Viking Trailer

Prefix basis · 16 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
2018

Observed directly for this VIN via NHTSA vPIC.

Observed make
VIKING TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Viking 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 12, 2023 – May 20, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
May 20, 2025MDII · Walk-around2OOS1920 TRANSPORT LLC 21096622926137/ME
May 12, 2025MDII · Walk-around2OOSMADDOX BROS TRUCKING INC 11564822926137/ME
Oct 30, 2024MDI · Full01920 TRANSPORT LLC 21096622926137/ME
Jul 12, 2023MDI · Full01920 TRANSPORT LLC 21096622926137/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
1920 TRANSPORT LLC2109662Jul 12, 2023May 20, 20253MD
MADDOX BROS TRUCKING INC1156482May 12, 2025May 12, 20251MD
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.
2926137ME1920 TRANSPORT LLCJul 12, 2023May 20, 20253
2926137MEMADDOX BROS TRUCKING INCMay 12, 2025May 12, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 9, 2026