Equipment unit · VIN-decoded · NHTSA vPIC

2013 Dragon Products

1UNST4421DS127948 · Trailer · TRAILER
Carriers run under3
36 mo
Inspections8
all-time
OOS inspections3
of 8
First seenJun 14, 2023
AZ
Last seenJun 12, 2026
CA
Inspected under 3 different carriers in 36 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
1UNST4421DS127948
Make
Dragon Products
Model
Dragon Products
Model year
2013
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 18, 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
1UN

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ST442

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1983 or 2013

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

North American serial sequence
127948

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2013

Observed directly for this VIN via NHTSA vPIC.

Observed make
DRAGON PRODUCTS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Dragon Products

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jun 14, 2023 – Jun 12, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 12, 2026CAI · Full0POTTS ENTERPRISES LLC 39780334WV7657/CA
Feb 19, 2025USI · Full8OOSSOUTHBAY TRANSPORT INC 1837973P259410/CA
Feb 18, 2025USII · Walk-around1SOUTHBAY TRANSPORT INC 1837973P259410/CA
Jan 31, 2025USII · Walk-around0SOUTHBAY TRANSPORT INC 18379734VZ1320/CA
Dec 23, 2024AZII · Walk-around5SOUTHBAY TRANSPORT INC 18379734VZ1320/CA
Dec 11, 2024CAI · Full1OOSSOUTHBAY TRANSPORT INC 18379734VZ1320/CA
Nov 25, 2024AZII · Walk-around5OOSSOUTHBAY TRANSPORT INC 18379734VZ1320/CA
Jun 14, 2023AZII · Walk-around2MARATHON PETROLEUM COMPANY LP 717188PB69213/IN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
POTTS ENTERPRISES LLC3978033Jun 12, 2026Jun 12, 20261CA
SOUTHBAY TRANSPORT INC1837973Nov 25, 2024Feb 19, 20256CA
MARATHON PETROLEUM COMPANY LP717188Jun 14, 2023Jun 14, 20231OH
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.
4WV7657CA2POTTS ENTERPRISES LLCJun 12, 2026Jun 12, 20261
P259410CASOUTHBAY TRANSPORT INCFeb 18, 2025Feb 19, 20252
4VZ1320CASOUTHBAY TRANSPORT INCNov 25, 2024Jan 31, 20254
PB69213INMARATHON PETROLEUM COMPANY LPJun 14, 2023Jun 14, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026