Equipment unit · VIN-decoded · NHTSA vPIC

1999 Freightliner Long Conv.

1FUYDZYB7XP976563 · Truck-Tractor · TRUCK
Carriers run under2
27 mo
Inspections17
all-time
OOS inspections6
of 17
First seenApr 24, 2024
TX
Last seenJul 29, 2026
US
Inspected under 2 different carriers in 27 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
1FUYDZYB7XP976563
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 16, 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
YDZYB

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
976563

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 · Apr 24, 2024 – Jul 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 29, 2026USIII · Driver-only0HECTOR TREVINO MARTINEZ 325607883ES4C/MX
Jul 14, 2026TXI · Full5HECTOR TREVINO MARTINEZ 325607883ES4C/MX
Jun 29, 2026USI · Full4HECTOR TREVINO MARTINEZ 325607883ES4C/MX
Jun 4, 2026USI · Full5HECTOR TREVINO MARTINEZ 325607883ES4C/MX
Mar 17, 2026TXI · Full3OOSHECTOR TREVINO MARTINEZ 325607883ES4C/MX
Mar 6, 2026TXI · Full3OOSJOSE LUIS VAZQUEZ RODRIGUEZ 399981783ES4C/MX
Mar 6, 2026TXI · Full3OOSHECTOR TREVINO MARTINEZ 325607883ES4C/MX
Mar 2, 2026TXI · Full2HECTOR TREVINO MARTINEZ 325607883ES4C/MX
Dec 22, 2025USI · Full4OOSHECTOR TREVINO MARTINEZ 325607883ES4C/MX
Dec 22, 2025USI · Full5HECTOR TREVINO MARTINEZ 325607883ES4C/MX
Dec 8, 2025TXI · Full3OOSHECTOR TREVINO MARTINEZ 325607883ES4C/MX
Sep 8, 2025TXI · Full2HECTOR TREVINO MARTINEZ 325607883ES4C/MX
Aug 26, 2025TXI · Full1HECTOR TREVINO MARTINEZ 325607883ES4C/TA
Oct 4, 2024TXI · Full0HECTOR TREVINO MARTINEZ 325607883ES4C/MX
Jul 3, 2024TXI · Full0HECTOR TREVINO MARTINEZ 325607883ES4L/MX
Jul 1, 2024TXI · Full6OOSHECTOR TREVINO MARTINEZ 325607883ES4C/MX
Apr 24, 2024TXI · Full2HECTOR TREVINO MARTINEZ 325607883ES4C/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HECTOR TREVINO MARTINEZ3256078Apr 24, 2024Jul 29, 202616TA
JOSE LUIS VAZQUEZ RODRIGUEZ3999817Mar 6, 2026Mar 6, 20261TA
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.
83ES4CMX1HECTOR TREVINO MARTINEZApr 24, 2024Jul 29, 202614
83ES4CMXJOSE LUIS VAZQUEZ RODRIGUEZMar 6, 2026Mar 6, 20261
83ES4CTAHECTOR TREVINO MARTINEZAug 26, 2025Aug 26, 20251
83ES4LMXHECTOR TREVINO MARTINEZJul 3, 2024Jul 3, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026