Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 579

1XPBD49X6LD709743 · Truck-Tractor · TRUCK
Carriers run under2
32 mo
Inspections12
all-time
OOS inspections2
of 12
First seenSep 12, 2023
CA
Last seenMay 28, 2026
WA
Inspected under 2 different carriers in 32 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
1XPBD49X6LD709743
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 16, 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
6 · valid

Deterministic · position 9; calculated value 6.

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
709743

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
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 · Sep 12, 2023 – May 28, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 28, 2026WAII · Walk-around0THUNDER BAL DISTRIBUTORS LTD 172864590954P/BC
May 26, 2026WAII · Walk-around1THUNDER BAL DISTRIBUTORS LTD 172864590954P/BC
Mar 3, 2026WAII · Walk-around4OOSTHUNDER BAL DISTRIBUTORS LTD 172864590954P/BC
Dec 8, 2025WAIII · Driver-only1THUNDER BAL DISTRIBUTORS LTD 172864590554P/BC
Mar 14, 2025WAII · Walk-around0THUNDER BAL DISTRIBUTORS LTD 172864590954P/BC
Feb 7, 2025WAIII · Driver-only1THUNDER BAL DISTRIBUTORS LTD 172864590954P/BC
Nov 15, 2024CAII · Walk-around0HAP TRUCKING LTD 278030159242P/BC
Sep 27, 2024CAII · Walk-around1OOSHAP TRUCKING LTD 278030159242P/BC
Jun 20, 2024CAI · Full0HAP TRUCKING LTD 278030159242P/BC
Mar 9, 2024WAI · Full0HAP TRUCKING LTD 278030159242P/BC
Mar 8, 2024SDIII · Driver-only0HAP TRUCKING LTD 278030159242P/BC
Sep 12, 2023CAI · Full0HAP TRUCKING LTD 2780301592242P/BC
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
THUNDER BAL DISTRIBUTORS LTD1728645Feb 7, 2025May 28, 20266BC
HAP TRUCKING LTD2780301Sep 12, 2023Nov 15, 20246BC
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.
90954PBCTHUNDER BAL DISTRIBUTORS LTDFeb 7, 2025May 28, 20265
90554PBCTHUNDER BAL DISTRIBUTORS LTDDec 8, 2025Dec 8, 20251
59242PBCHAP TRUCKING LTDMar 8, 2024Nov 15, 20245
592242PBCHAP TRUCKING LTDSep 12, 2023Sep 12, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026