Equipment unit · VIN-decoded · NHTSA vPIC

2023 Isuzu NPR-HD

54DC4W1D1PS203981 · Incomplete - Chassis Cab (Single Cab) · INCOMPLETE VEHICLE
Carriers run under3
24 mo
Inspections3
all-time
OOS inspections1
of 3
First seenMar 20, 2024
GA
Last seenMar 11, 2026
GA
Inspected under 3 different carriers in 24 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
54DC4W1D1PS203981
Make
Isuzu
Model
NPR-HD
Model year
2023
Body class
Incomplete - Chassis Cab (Single Cab)
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 4: 14,001 - 16,000 lb (6,350 - 7,258 kg)
Decoded at
Aug 9, 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
54D

Deterministic · VIN positions 1–3.

Vehicle descriptor section
C4W1D

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
203981

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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
ISUZU

Observed directly for this VIN via NHTSA vPIC.

Observed model
NPR-HD

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Incomplete - Chassis Cab (Single Cab)

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 4: 14,001 - 16,000 lb (6,350 - 7,258 kg)

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 · Mar 20, 2024 – Mar 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 11, 2026GAIII · Driver-only1MAYFLOWER TRANSIT LLC 125563YBM815/GA
Dec 18, 2025GAIII · Driver-only2OOSADSI MOVING SYSTEMS INC 754250YBM815/GA
Mar 20, 2024GAIII · Driver-only1A 1 BESTWAY INC 2002077YBM815/GA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MAYFLOWER TRANSIT LLC125563Mar 11, 2026Mar 11, 20261MO
ADSI MOVING SYSTEMS INC754250Dec 18, 2025Dec 18, 20251GA
A 1 BESTWAY INC2002077Mar 20, 2024Mar 20, 20241GA
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.
YBM815GAMAYFLOWER TRANSIT LLCMar 11, 2026Mar 11, 20261
YBM815GAADSI MOVING SYSTEMS INCDec 18, 2025Dec 18, 20251
YBM815GAA 1 BESTWAY INCMar 20, 2024Mar 20, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026