Equipment unit · VIN-decoded · NHTSA vPIC

2023 Western Construction Components

1W9102824PW172161 · Trailer · TRAILER
Carriers run under4
27 mo
Inspections14
all-time
OOS inspections3
of 14
First seenSep 27, 2023
CA
Last seenDec 21, 2025
CA
Inspected under 4 different carriers in 27 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
1W9102824PW172161
Make
Western Construction Components
Model
Western Construction Components
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
1W9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
10282

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1993 or 2023

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

North American serial sequence
172161

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
WESTERN CONSTRUCTION COMPONENTS

Prefix basis · 41 decoded VINs at 100.0% prefix purity.

Model
Western Construction Components

Prefix basis · 41 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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
WESTERN CONSTRUCTION COMPONENTS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Western Construction Components

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 27, 2023 – Dec 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 21, 2025CAIII · Driver-only0DIRT & ROCK TRANSPORT LLC 44309111VZ1178/CA
Aug 16, 2025CAII · Walk-around2DIRT & ROCK HAULING 43677431VZ1178/CA
Jul 8, 2025CAIII · Driver-only3DIRT & ROCK HAULING 43677431VZ1178/CA
Jul 5, 2025CAII · Walk-around0DIRT & ROCK HAULING 43677431VZ1178/CA
Jul 4, 2025CAII · Walk-around1DIRT & ROCK HAULING 43677431VZ1178/CA
Jun 28, 2025CAII · Walk-around1OOSDIRT & ROCK HAULING 43677431VZ1178/CA
Jun 24, 2025CAIII · Driver-only4DIRT & ROCK HAULING 43677431VZ1178/CA
Jun 14, 2025CAII · Walk-around2DIRT & ROCK HAULING 43677431VZ1178/CA
Nov 29, 2024CAIII · Driver-only0AJM EXPRESS SOLUTIONS LLC 39493581VZ1178/CA
Jun 20, 2024CAI · Full3AJM EXPRESS SOLUTIONS LLC 39493581VZ1178/CA
Apr 30, 2024CAIII · Driver-only2AJM EXPRESS SOLUTIONS LLC 39493581VZ1178/CA
Mar 14, 2024CAI · Full0ALFREDO J MARTINEZ JIMINEZ 26938961VZ1178/CA
Mar 5, 2024CAI · Full7OOSALFREDO J MARTINEZ JIMINEZ 26938961VZ1178/CA
Sep 27, 2023CAI · Full2OOSALFREDO J MARTINEZ JIMINEZ 26938961VZ1178/CA
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DIRT & ROCK TRANSPORT LLC4430911Dec 21, 2025Dec 21, 20251CA
DIRT & ROCK HAULING4367743Jun 14, 2025Aug 16, 20257CA
AJM EXPRESS SOLUTIONS LLC3949358Apr 30, 2024Nov 29, 20243CA
ALFREDO J MARTINEZ JIMINEZ2693896Sep 27, 2023Mar 14, 20243CA
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.
1VZ1178CADIRT & ROCK TRANSPORT LLCDec 21, 2025Dec 21, 20251
1VZ1178CADIRT & ROCK HAULINGJun 14, 2025Aug 16, 20257
1VZ1178CAAJM EXPRESS SOLUTIONS LLCApr 30, 2024Nov 29, 20243
1VZ1178CAALFREDO J MARTINEZ JIMINEZSep 27, 2023Mar 14, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026