Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 579

1XPBD49X9LD652356 · Truck-Tractor · TRUCK
Carriers run under2
32 mo
Inspections5
all-time
OOS inspections2
of 5
First seenNov 7, 2023
CA
Last seenJul 31, 2026
CA
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
1XPBD49X9LD652356
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
Jul 12, 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
9 · valid

Deterministic · position 9; calculated value 9.

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
652356

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 · Nov 7, 2023 – Jul 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 31, 2026CAII · Walk-around0A & R TRANSPORT LLC 42247899H05320/CA
Sep 27, 2025CAIII · Driver-only1A & R TRANSPORT LLC 42247899H05320/CA
May 8, 2025CAI · Full2OOSA & R TRANSPORT LLC 42247899H05320/CA
Nov 30, 2023OHIII · Driver-only1D & M CARRIERS LLC 9633003DL354/OK
Nov 7, 2023CAI · Full3OOSD & M CARRIERS LLC 9633003DL354/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
A & R TRANSPORT LLC4224789May 8, 2025Jul 31, 20263CA
D & M CARRIERS LLC963300Nov 7, 2023Nov 30, 20232OK
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.
9H05320CA1A & R TRANSPORT LLCMay 8, 2025Jul 31, 20263
3DL354OK1D & M CARRIERS LLCNov 7, 2023Nov 30, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026