Equipment unit · VIN-decoded · NHTSA vPIC

2006 Volvo Truck VT

4V4LC9TK66N421971 · Truck-Tractor · TRUCK
Carriers run under2
28 mo
Inspections3
all-time
OOS inspections2
of 3
First seenSep 11, 2023
KY
Last seenJan 16, 2026
MO
Inspected under 2 different carriers in 28 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
4V4LC9TK66N421971
Make
Volvo Truck
Model
VT
Model year
2006
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Aug 9, 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
4V4

Deterministic · VIN positions 1–3.

Vehicle descriptor section
LC9TK

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
2006 or 2036

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

North American serial sequence
421971

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
VOLVO TRUCK

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

Model
VT

Prefix basis · 7 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
2006

Observed directly for this VIN via NHTSA vPIC.

Observed make
VOLVO TRUCK

Observed directly for this VIN via NHTSA vPIC.

Observed model
VT

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 · Sep 11, 2023 – Jan 16, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 16, 2026MOI · Full4OOSTRIUMPH ENERGY SERVICES LLC 3159860R801831/TX
Jun 13, 2024INIII · Driver-only0SECURITY TRANSPORT INC 2329669P1069390/IL
Sep 11, 2023KYI · Full3OOSSECURITY TRANSPORT INC 2329669P1069390/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRIUMPH ENERGY SERVICES LLC3159860Jan 16, 2026Jan 16, 20261TX
SECURITY TRANSPORT INC2329669Sep 11, 2023Jun 13, 20242IN
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.
R801831TXTRIUMPH ENERGY SERVICES LLCJan 16, 2026Jan 16, 20261
P1069390ILSECURITY TRANSPORT INCSep 11, 2023Jun 13, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026