Equipment unit · VIN-decoded · NHTSA vPIC

2025 Peterbilt 579

1XPBD49X8SD679451 · Truck-Tractor · TRUCK
Carriers run under2
28 mo
Inspections4
all-time
OOS inspections2
of 4
First seenJun 14, 2024
WA
Last seenOct 21, 2026
AK
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
1XPBD49X8SD679451
Make
Peterbilt
Model
579
Model year
2025
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 30, 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
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1995 or 2025

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

North American serial sequence
679451

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.

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 14, 2024 – Oct 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 21, 2026AKII · Walk-around1OOSMIDNIGHT SUN TRANSPORTATION SERVICES LLC 309261MAU488/AK
Dec 2, 2025AKII · Walk-around1—MIDNIGHT SUN TRANSPORTATION SERVICES LLC 309261MAU489/AK
Jul 11, 2025AKIII · Driver-only0—MIDNIGHT SUN TRANSPORTATION SERVICES LLC 309261MAU489/AK
Jun 14, 2024WAII · Walk-around3OOSALASKA FREIGHT EXPRESS LLC 272017D51211E/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MIDNIGHT SUN TRANSPORTATION SERVICES LLC309261Jul 11, 2025Oct 21, 20263AK
ALASKA FREIGHT EXPRESS LLC272017Jun 14, 2024Jun 14, 20241WA
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.
MAU488AK1MIDNIGHT SUN TRANSPORTATION SERVICES LLCOct 21, 2026 → Oct 21, 20261
MAU489AK—MIDNIGHT SUN TRANSPORTATION SERVICES LLCJul 11, 2025 → Dec 2, 20252
D51211EWA—ALASKA FREIGHT EXPRESS LLCJun 14, 2024 → Jun 14, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 30, 2026