Equipment unit · VIN-decoded · NHTSA vPIC

2021 Volvo Truck VNR

4V4W39DG9MN601188 · Truck-Tractor · TRUCK
Carriers run under2
13 mo
Inspections2
all-time
OOS inspections0
of 2
First seenFeb 10, 2025
PA
Last seenMar 30, 2026
MD
Inspected under 2 different carriers in 13 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
4V4W39DG9MN601188
Make
Volvo Truck
Model
VNR
Model year
2021
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Sep 20, 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
W39DG

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1991 or 2021

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

North American serial sequence
601188

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 · 5 decoded VINs at 100.0% prefix purity.

Model
VNR

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.

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 · Feb 10, 2025 – Mar 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 30, 2026MDII · Walk-around2—IRONLINX TRANSPORTATION LLC 2090297AH78411/PA
Feb 10, 2025PAIII · Driver-only3—J S FESMIRE HAULING INCORPORATED 625527AG56914/PA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
IRONLINX TRANSPORTATION LLC2090297Mar 30, 2026Mar 30, 20261PA
J S FESMIRE HAULING INCORPORATED625527Feb 10, 2025Feb 10, 20251PA
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.
AH78411PA—IRONLINX TRANSPORTATION LLCMar 30, 2026 → Mar 30, 20261
AG56914PA—J S FESMIRE HAULING INCORPORATEDFeb 10, 2025 → Feb 10, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Sep 20, 2026