Equipment unit · VIN-decoded · NHTSA vPIC

2021 Wilson

1W1K55327M6630143 · Trailer · TRAILER
Carriers run under5
31 mo
Inspections6
all-time
OOS inspections2
of 6
First seenSep 24, 2023
CA
Last seenApr 15, 2026
CA
Inspected under 5 different carriers in 31 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
1W1K55327M6630143
Make
Wilson
Model
Wilson
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 23, 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
1W1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
K5532

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
630143

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
WILSON

Prefix basis · 253 decoded VINs at 100.0% prefix purity.

Model
Wilson

Prefix basis · 253 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
WILSON

Observed directly for this VIN via NHTSA vPIC.

Observed model
Wilson

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 · Sep 24, 2023 – Apr 15, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 15, 2026CAV · Vehicle-only0JP MASTER TRANSPORT INC 32683094TP2614/CA
Apr 1, 2026CAII · Walk-around4MENDOZA TRANSPORT LLC 36170944TP2614/CA
Mar 11, 2026CAI · Full7OOSMRC TRANS LLC 29861874TP2614/CA
Mar 28, 2025CAII · Walk-around3OOSJP MASTER TRANSPORT INC 32683094TP2614/CA
Sep 11, 2024ORIII · Driver-only0JOSE A LONA ROCHA 38690784TP2614/CA
Sep 24, 2023CAIII · Driver-only0ALFARO TRUCKING INC 9774964TP2614/CA
03

Carriers this unit has run under

5 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JP MASTER TRANSPORT INC3268309Mar 28, 2025Apr 15, 20262CA
MENDOZA TRANSPORT LLC3617094Apr 1, 2026Apr 1, 20261CA
MRC TRANS LLC2986187Mar 11, 2026Mar 11, 20261CA
JOSE A LONA ROCHA3869078Sep 11, 2024Sep 11, 20241CA
ALFARO TRUCKING INC977496Sep 24, 2023Sep 24, 20231CA
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.
4TP2614CAJP MASTER TRANSPORT INCMar 28, 2025Apr 15, 20262
4TP2614CAMENDOZA TRANSPORT LLCApr 1, 2026Apr 1, 20261
4TP2614CAMRC TRANS LLCMar 11, 2026Mar 11, 20261
4TP2614CAJOSE A LONA ROCHASep 11, 2024Sep 11, 20241
4TP2614CAALFARO TRUCKING INCSep 24, 2023Sep 24, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026