Equipment unit · VIN-decoded · NHTSA vPIC

2019 Pt Welding

1P9PH2121KW542197 · Trailer · TRAILER
Carriers run under3
21 mo
Inspections3
all-time
OOS inspections0
of 3
First seenMar 28, 2024
CA
Last seenDec 4, 2025
CA
Inspected under 3 different carriers in 21 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
1P9PH2121KW542197
Make
Pt Welding
Model
PT WELDING
Model year
2019
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
PH212

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1989 or 2019

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

North American serial sequence
542197

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
PT WELDING

Prefix basis · 13 decoded VINs at 92.3% prefix purity.

Model
PT WELDING

Prefix basis · 13 decoded VINs at 92.3% 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
2019

Observed directly for this VIN via NHTSA vPIC.

Observed make
PT WELDING

Observed directly for this VIN via NHTSA vPIC.

Observed model
PT WELDING

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 28, 2024 – Dec 4, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 4, 2025CAI · Full3M&G R TRUCKING LLC 40710804SX2150/CA
Nov 12, 2024CAI · Full0MC LOPEZ TRUCKING LLC 35701874SX2150/CA
Mar 28, 2024CAII · Walk-around0BLUE OCEAN & SONS TRANSPORTATION LLC 21256464SX2150/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
M&G R TRUCKING LLC4071080Dec 4, 2025Dec 4, 20251CA
MC LOPEZ TRUCKING LLC3570187Nov 12, 2024Nov 12, 20241CA
BLUE OCEAN & SONS TRANSPORTATION LLC2125646Mar 28, 2024Mar 28, 20241CA
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.
4SX2150CAM&G R TRUCKING LLCDec 4, 2025Dec 4, 20251
4SX2150CAMC LOPEZ TRUCKING LLCNov 12, 2024Nov 12, 20241
4SX2150CABLUE OCEAN & SONS TRANSPORTATION LLCMar 28, 2024Mar 28, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026