Equipment unit · VIN-decoded · NHTSA vPIC

2005 Freightliner Columbia

1FUJA6CK55LN39679 · Truck-Tractor · TRUCK
Columbia 120
Carriers run under2
23 mo
Inspections9
all-time
OOS inspections1
of 9
First seenOct 9, 2023
MO
Last seenSep 19, 2025
IN
Inspected under 2 different carriers in 23 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
1FUJA6CK55LN39679
Make
Freightliner
Model
Columbia
Model year
2005
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 19, 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
JA6CK

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
2005 or 2035

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

North American serial sequence
N39679

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 · 7,803 decoded VINs at 100.0% prefix purity.

Model
Columbia

Prefix basis · 7,803 decoded VINs at 100.0% prefix purity.

Model line
Columbia 120

Sourced label · prefix basis 7,803 decoded VINs at 100.0% prefix purity.

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
2005

Observed directly for this VIN via NHTSA vPIC.

Observed make
FREIGHTLINER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Columbia

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

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Oct 9, 2023 – Sep 19, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 19, 2025INII · Walk-around1OOSJ GUERRERO & SONS LLC 4406733R807871/TX
Sep 16, 2025TXI · Full6J GUERRERO & SONS LLC 4406733R807871/TX
Sep 2, 2025TXII · Walk-around3J GUERRERO & SONS LLC 4406733R807871/TX
Aug 5, 2024WIIII · Driver-only1RJG TRANZ LLC 3585069R702446/TX
Apr 12, 2024MOII · Walk-around3RJG TRANZ LLC 3585069R702446/TX
Dec 31, 2023ARIII · Driver-only0RJG TRANZ LLC 3585069R702446/TX
Nov 20, 2023MOIII · Driver-only0RJG TRANZ LLC 3585069R702446/TX
Nov 5, 2023TXII · Walk-around0RJG TRANZ LLC 3585069R702446/TX
Oct 9, 2023MOII · Walk-around0RJG TRANZ LLC 358506923Z203V/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
J GUERRERO & SONS LLC4406733Sep 2, 2025Sep 19, 20253TX
RJG TRANZ LLC3585069Oct 9, 2023Aug 5, 20246TX
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.
R807871TXJ GUERRERO & SONS LLCSep 2, 2025Sep 19, 20253
R702446TXRJG TRANZ LLCNov 5, 2023Aug 5, 20245
23Z203VTXRJG TRANZ LLCOct 9, 2023Oct 9, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026