Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 579

1XPBDP9X3LD675388 · Truck-Tractor · TRUCK
Carriers run under3
33 mo
Inspections10
all-time
OOS inspections0
of 10
First seenNov 7, 2023
TN
Last seenAug 1, 2026
TX
Inspected under 3 different carriers in 33 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
1XPBDP9X3LD675388
Make
Peterbilt
Model
579
Model year
2020
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
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1990 or 2020

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

North American serial sequence
675388

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.

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
2020

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 · Nov 7, 2023 – Aug 1, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 1, 2026TXII · Walk-around4WEST TEXAS DRUM COMPANY LTD 542625R787974/TX
Jul 20, 2026TXII · Walk-around0WEST TEXAS DRUM COMPANY LTD 542625R787974/TX
Jul 13, 2026TXII · Walk-around2WEST TEXAS DRUM COMPANY LTD 542625R787974/TX
May 19, 2026TXII · Walk-around1WEST TEXAS DRUM COMPANY LTD 542625R787974/TX
Apr 23, 2026TXIII · Driver-only3WEST TEXAS DRUM COMPANY LTD 542625R787974/TX
Feb 24, 2026TXIII · Driver-only2WEST TEXAS DRUM COMPANY LTD 5426257766C94/TX
Oct 28, 2025COIII · Driver-only1WEST TEXAS DRUM COMPANY LTD 542625R787974/TX
Jun 9, 2025TXII · Walk-around3WEST TEXAS DRUM COMPANY LTD II 10004657766C94/TX
Mar 1, 2024ARIII · Driver-only1DOT TRANSPORTATION INC 424023P1043556/IL
Nov 7, 2023TNI · Full0DOT TRANSPORTATION INC 424023P1043556/IL
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WEST TEXAS DRUM COMPANY LTD542625Oct 28, 2025Aug 1, 20267TX
WEST TEXAS DRUM COMPANY LTD II1000465Jun 9, 2025Jun 9, 20251TX
DOT TRANSPORTATION INC424023Nov 7, 2023Mar 1, 20242IL
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.
R787974TX1WEST TEXAS DRUM COMPANY LTDOct 28, 2025Aug 1, 20266
7766C94TXWEST TEXAS DRUM COMPANY LTDFeb 24, 2026Feb 24, 20261
7766C94TXWEST TEXAS DRUM COMPANY LTD IIJun 9, 2025Jun 9, 20251
P1043556ILDOT TRANSPORTATION INCNov 7, 2023Mar 1, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026