Equipment unit · VIN-decoded · NHTSA vPIC

1999 Freightliner Long Conv.

1FUYDXYB4XLA91543 · Truck-Tractor · TRUCK
Carriers run under1
24 mo
Inspections6
all-time
OOS inspections4
of 6
First seenFeb 5, 2024
TX
Last seenFeb 11, 2026
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1FUYDXYB4XLA91543
Make
Freightliner
Model
Long Conv.
Model year
1999
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 22, 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
1FU

Deterministic · VIN positions 1–3.

Vehicle descriptor section
YDXYB

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
A91543

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
FREIGHTLINER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Long Conv.

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

  • 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 · Feb 5, 2024 – Feb 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 11, 2026TXII · Walk-around3MANUEL DE JESUS MONTELONGO 20357371M05040/TX
Jan 29, 2026TXII · Walk-around8OOSMANUEL DE JESUS MONTELONGO 20357371M05040/TX
Jan 15, 2026TXI · Full8MANUEL DE JESUS MONTELONGO 20357371M05040/TX
Nov 12, 2024TXII · Walk-around4OOSMANUEL DE JESUS MONTELONGO 20357371M05040/TX
May 23, 2024TXI · Full14OOSMANUEL DE JESUS MONTELONGO 20357371M05040/TX
Feb 5, 2024TXI · Full9OOSMANUEL DE JESUS MONTELONGO 20357371M05040/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MANUEL DE JESUS MONTELONGO2035737Feb 5, 2024Feb 11, 20266TX
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.
1M05040TXMANUEL DE JESUS MONTELONGOFeb 5, 2024Feb 11, 20266
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026