Equipment unit · VIN-decoded · NHTSA vPIC

2018 Peterbilt 579

1XPBD49X9JD459685 · Truck-Tractor · TRUCK
Carriers run under3
31 mo
Inspections6
all-time
OOS inspections0
of 6
First seenAug 2, 2023
NM
Last seenMar 11, 2026
UT
Inspected under 3 different carriers in 31 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
1XPBD49X9JD459685
Make
Peterbilt
Model
579
Model year
2018
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 25, 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
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1988 or 2018

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

North American serial sequence
459685

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
2018

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 · Aug 2, 2023 – Mar 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 11, 2026UTIII · Driver-only0NB EXPRESS LLC 3416673R820017/TX
Jan 16, 2026COIII · Driver-only1NB EXPRESS LLC 3416673R820017/TX
Oct 2, 2025COII · Walk-around0NB EXPRESS LLC 3416673R768911/TX
Feb 7, 2024OHIII · Driver-only0MIDNIGHT TRANSPORT LLC 3821545R684544/TX
Dec 26, 2023NMIII · Driver-only04J EXPRESS LLC 1428391R684544/TX
Aug 2, 2023NMI · Full14J EXPRESS LLC 1428391R684544/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
NB EXPRESS LLC3416673Oct 2, 2025Mar 11, 20263TX
MIDNIGHT TRANSPORT LLC3821545Feb 7, 2024Feb 7, 20241WI
4J EXPRESS LLC1428391Aug 2, 2023Dec 26, 20232TX
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.
R820017TXNB EXPRESS LLCJan 16, 2026Mar 11, 20262
R768911TXNB EXPRESS LLCOct 2, 2025Oct 2, 20251
R684544TXMIDNIGHT TRANSPORT LLCFeb 7, 2024Feb 7, 20241
R684544TX4J EXPRESS LLCAug 2, 2023Dec 26, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026