Equipment unit · VIN-decoded · NHTSA vPIC

2016 Peterbilt 579

1XPBD49XXGD253493 · Truck-Tractor · TRUCK
Carriers run under2
27 mo
Inspections6
all-time
OOS inspections1
of 6
First seenJun 30, 2023
NM
Last seenSep 19, 2025
TN
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
1XPBD49XXGD253493
Make
Peterbilt
Model
579
Model year
2016
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 23, 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
1XP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BD49X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1986 or 2016

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

North American serial sequence
253493

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
PETERBILT

Prefix basis · 26,166 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 26,166 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
2016

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
579

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 · Jun 30, 2023 – Sep 19, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 19, 2025TNII · Walk-around1OOSLIQUID TRANSPORT CORP 708923642902/IN
Sep 10, 2025ILII · Walk-around0LIQUID TRANSPORT CORP 708923642902/IN
Apr 14, 2025WAIII · Driver-only1LIQUID TRANSPORT CORP 708923642902/IN
Mar 17, 2025CAII · Walk-around1LIQUID TRANSPORT CORP 708923642902/IN
Jul 7, 2023ILII · Walk-around0QC WEST LLC 2064293P1111937/IL
Jun 30, 2023NMII · Walk-around1QC WEST LLC 2064293P1111937/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
LIQUID TRANSPORT CORP70892Mar 17, 2025Sep 19, 20254IN
QC WEST LLC2064293Jun 30, 2023Jul 7, 20232FL
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.
3642902IN1LIQUID TRANSPORT CORPMar 17, 2025Sep 19, 20254
P1111937ILQC WEST LLCJun 30, 2023Jul 7, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026