Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 579

1XPBD49X0LD655047 · Truck-Tractor · TRUCK
Carriers run under2
35 mo
Inspections7
all-time
OOS inspections1
of 7
First seenSep 1, 2023
SC
Last seenAug 6, 2026
CA
Inspected under 2 different carriers in 35 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
1XPBD49X0LD655047
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 24, 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
0 · valid

Deterministic · position 9; calculated value 0.

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
655047

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 1, 2023 – Aug 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 6, 2026CAIII · Driver-only1SHAH BROTHER INC 4290227ZP91881/CA
Sep 8, 2024SCIII · Driver-only1SHAH BROTHERS INC 3845347YP99742/CA
Aug 1, 2024ALIII · Driver-only0SHAH BROTHERS INC 3845347YP99742/CA
Jul 15, 2024IAIII · Driver-only1OOSSHAH BROTHERS INC 3845347YP99742/CA
Mar 13, 2024NMIII · Driver-only1SHAH BROTHERS INC 3845347YP99742/CA
Feb 28, 2024CAIII · Driver-only2SHAH BROTHERS INC 3845347YP99742/CA
Sep 1, 2023SCII · Walk-around2SHAH BROTHERS INC 3845347YP99742/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SHAH BROTHER INC4290227Aug 6, 2026Aug 6, 20261IN
SHAH BROTHERS INC3845347Sep 1, 2023Sep 8, 20246CA
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.
ZP91881CA1SHAH BROTHER INCAug 6, 2026Aug 6, 20261
YP99742CASHAH BROTHERS INCSep 1, 2023Sep 8, 20246
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026