Equipment unit · VIN-decoded · NHTSA vPIC

4Z45154212P003740

Not yet decoded
Carriers run under2
13 mo
Inspections2
all-time
OOS inspections0
of 2
First seenNov 10, 2023
OK
Last seenDec 31, 2024
OK
Inspected under 2 different carriers in 13 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
51542

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
2002 or 2032

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

North American serial sequence
003740

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.

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 · Nov 10, 2023 – Dec 31, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 31, 2024OKII · Walk-around6CHRIS ROBERTS TRUCKING LLC 1714927AZ7121/OK
Nov 10, 2023OKIII · Driver-only1MATTHEW PARDUE 3434693AZ7121/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CHRIS ROBERTS TRUCKING LLC1714927Dec 31, 2024Dec 31, 20241OK
MATTHEW PARDUE3434693Nov 10, 2023Nov 10, 20231OK
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.
AZ7121OKCHRIS ROBERTS TRUCKING LLCDec 31, 2024Dec 31, 20241
AZ7121OKMATTHEW PARDUENov 10, 2023Nov 10, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC