Equipment unit · NHTSA vPIC identity

2018 Peterbilt 579

1XPBDP9X1JD448195 · Truck-Tractor · TRUCK
Carriers run under2
37 mo
Inspections8
all-time
OOS inspections2
of 8
First seenJul 10, 2023
CA
Last seenAug 14, 2026
LA
Inspected under 2 different carriers in 37 months
These observations show where this VIN appeared, not who owned the vehicle. Sales, leases or owner-operator moves may explain carrier changes. A shared VIN alone is not a fraud finding. Compare dates and sources in the timeline below.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPBDP9X1JD448195
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 21, 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
BDP9X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
448195

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 · 21,366 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 21,366 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 · Jul 10, 2023 – Aug 14, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 14, 2026LAIII · Driver-only0—YDT EXPRESS LLC 4021753R775364/TX
Jan 23, 2026MSII · Walk-around1—YDT EXPRESS LLC 4021753R775364/TX
Nov 6, 2025LAIII · Driver-only1—YDT EXPRESS LLC 4021753R775364/TX
Oct 2, 2025TXII · Walk-around0—YDT EXPRESS LLC 4021753R775364/TX
Oct 16, 2023TNII · Walk-around1OOSADAMS UNLIMITED FREIGHT LLC 3281023R616668/TX
Sep 11, 2023GAIII · Driver-only1—ADAMS UNLIMITED FREIGHT LLC 3281023R616668/TX
Aug 8, 2023NMIII · Driver-only1—ADAMS UNLIMITED FREIGHT LLC 3281023R616668/TX
Jul 10, 2023CAI · Full5OOSADAMS UNLIMITED FREIGHT LLC 3281023R616668/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
YDT EXPRESS LLC4021753Oct 2, 2025Aug 14, 20264TX
ADAMS UNLIMITED FREIGHT LLC3281023Jul 10, 2023Oct 16, 20234TX
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.
R775364TX1YDT EXPRESS LLCOct 2, 2025 → Aug 14, 20264
R616668TX—ADAMS UNLIMITED FREIGHT LLCJul 10, 2023 → Oct 16, 20234
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026