Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X5PD791728 · Truck-Tractor · TRUCK
Carriers run under3
24 mo
Inspections5
all-time
OOS inspections0
of 5
First seenOct 26, 2024
TN
Last seenOct 31, 2026
TX
Inspected under 3 different carriers in 24 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
1XPBD49X5PD791728
Make
Peterbilt
Model
579
Model year
2023
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
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
1993 or 2023

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

North American serial sequence
791728

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 · Oct 26, 2024 – Oct 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 31, 2026TXII · Walk-around0—EC FREIGHT LOGISTICS LLC 3813736R868723/TX
Oct 17, 2026MSII · Walk-around0—EC FREIGHT LOGISTICS LLC 3813736R868723/TX
Mar 14, 2026TXII · Walk-around0—DELBA XPRESS INC 2939103R826452/TN
Nov 27, 2024UTIII · Driver-only0—EP SEATTLE EXPRESS INC 3169997TEMP791728/TN
Oct 26, 2024TNIII · Driver-only1—EP SEATTLE EXPRESS INC 3169997T9630HY/TN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
EC FREIGHT LOGISTICS LLC3813736Oct 17, 2026Oct 31, 20262TX
DELBA XPRESS INC2939103Mar 14, 2026Mar 14, 20261TX
EP SEATTLE EXPRESS INC3169997Oct 26, 2024Nov 27, 20242TN
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.
R868723TX1EC FREIGHT LOGISTICS LLCOct 17, 2026 → Oct 31, 20262
R826452TN—DELBA XPRESS INCMar 14, 2026 → Mar 14, 20261
TEMP791728TN—EP SEATTLE EXPRESS INCNov 27, 2024 → Nov 27, 20241
T9630HYTN—EP SEATTLE EXPRESS INCOct 26, 2024 → Oct 26, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 30, 2026