Equipment unit · VIN-decoded · NHTSA vPIC

1990 Whitegmc WIA

4V1WDBRFXLN624883 · Truck-Tractor · TRUCK
Carriers run under1
22 mo
Inspections4
all-time
OOS inspections1
of 4
First seenFeb 13, 2024
IA
Last seenDec 18, 2025
IN
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
4V1WDBRFXLN624883
Make
Whitegmc
Model
WIA
Model year
1990
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 14, 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
4V1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WDBRF

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1990 or 2020

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

North American serial sequence
624883

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
WHITEGMC

Prefix basis · 26 decoded VINs at 100.0% prefix purity.

Model
WIA

Prefix basis · 26 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
1990

Observed directly for this VIN via NHTSA vPIC.

Observed make
WHITEGMC

Observed directly for this VIN via NHTSA vPIC.

Observed model
WIA

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

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 · Feb 13, 2024 – Dec 18, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 18, 2025INII · Walk-around1WILLIAM ROBERT NAMCHEK 53057912810X/WI
Aug 12, 2025WIII · Walk-around2OOSWILLIAM ROBERT NAMCHEK 53057912810X/WI
Jun 27, 2024ILII · Walk-around1WILLIAM ROBERT NAMCHEK 53057912810X/WI
Feb 13, 2024IAII · Walk-around0WILLIAM ROBERT NAMCHEK 53057912810X/WI
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WILLIAM ROBERT NAMCHEK530579Feb 13, 2024Dec 18, 20254WI
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.
12810XWIWILLIAM ROBERT NAMCHEKFeb 13, 2024Dec 18, 20254
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 14, 2026