Equipment unit · VIN-decoded · NHTSA vPIC

2004 Freightliner CST120

1FUBBACK64PM40316 · Truck-Tractor · TRUCK
Carriers run under2
18 mo
Inspections4
all-time
OOS inspections4
of 4
First seenJul 26, 2023
TX
Last seenJan 17, 2025
TX
Inspected under 2 different carriers in 18 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
1FUBBACK64PM40316
Make
Freightliner
Model
CST120
Model year
2004
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)
Decoded at
Jul 5, 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
BBACK

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
2004 or 2034

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

North American serial sequence
M40316

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
FREIGHTLINER

Prefix basis · 5 decoded VINs at 100.0% prefix purity.

Model
CST120

Prefix basis · 5 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
2004

Observed directly for this VIN via NHTSA vPIC.

Observed make
FREIGHTLINER

Observed directly for this VIN via NHTSA vPIC.

Observed model
CST120

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 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)

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 · Jul 26, 2023 – Jan 17, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 17, 2025TXII · Walk-around14OOSVELAZQUEZ TRUCKING LLC 427338545U568M/TX
Dec 6, 2024TXII · Walk-around20OOSVELAZQUEZ TRUCKING LLC 4273385NONE/TX
Feb 26, 2024TXII · Walk-around16OOSSHAZAN LOGISTICS LLC 35230841N20507/TX
Jul 26, 2023TXII · Walk-around3OOSSHAZAN LOGISTICS LLC 35230841N20507/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
VELAZQUEZ TRUCKING LLC4273385Dec 6, 2024Jan 17, 20252TX
SHAZAN LOGISTICS LLC3523084Jul 26, 2023Feb 26, 20242TX
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.
45U568MTXVELAZQUEZ TRUCKING LLCJan 17, 2025Jan 17, 20251
NONETXVELAZQUEZ TRUCKING LLCDec 6, 2024Dec 6, 20241
1N20507TXSHAZAN LOGISTICS LLCJul 26, 2023Feb 26, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026