Equipment unit · VIN-decoded · NHTSA vPIC

1999 Cps Trailer Company Hopper Trailer

4Z4111621XP001403 · Trailer · TRAILER
Carriers run under3
33 mo
Inspections4
all-time
OOS inspections2
of 4
First seenJun 20, 2023
TX
Last seenMar 19, 2026
TX
Inspected under 3 different carriers in 33 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
4Z4111621XP001403
Make
Cps Trailer Company
Model
Hopper Trailer
Model year
1999
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 15, 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
4Z4

Deterministic · VIN positions 1–3.

Vehicle descriptor section
11162

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1999 or 2029

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

North American serial sequence
001403

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
1999

Observed directly for this VIN via NHTSA vPIC.

Observed make
CPS TRAILER COMPANY

Observed directly for this VIN via NHTSA vPIC.

Observed model
Hopper 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

  • 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 20, 2023 – Mar 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 19, 2026TXII · Walk-around5WAJ TRANSPORT LLC 419731175U644N/TX
Feb 4, 2026TXII · Walk-around8OOSWAJ TRANSPORT LLC 419731163U589N/TX
Mar 27, 2025TXII · Walk-around9OOSNDZ TRUCKING LLC 3267967233C771/TX
Jun 20, 2023TXII · Walk-around4JLN TRUCKING LLC 2390371233C771/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WAJ TRANSPORT LLC4197311Feb 4, 2026Mar 19, 20262TX
NDZ TRUCKING LLC3267967Mar 27, 2025Mar 27, 20251TX
JLN TRUCKING LLC2390371Jun 20, 2023Jun 20, 20231TX
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.
75U644NTXWAJ TRANSPORT LLCMar 19, 2026Mar 19, 20261
63U589NTXWAJ TRANSPORT LLCFeb 4, 2026Feb 4, 20261
233C771TXNDZ TRUCKING LLCMar 27, 2025Mar 27, 20251
233C771TXJLN TRUCKING LLCJun 20, 2023Jun 20, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 15, 2026