Equipment unit · VIN-decoded · NHTSA vPIC

2018 Peterbilt 579

1XPBD49X1JD485133 · Truck-Tractor · TRUCK
Carriers run under2
29 mo
Inspections14
all-time
OOS inspections2
of 14
First seenJan 9, 2024
TX
Last seenJun 15, 2026
US
Inspected under 2 different carriers in 29 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
1XPBD49X1JD485133
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 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
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
485133

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
2018

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 · Jan 9, 2024 – Jun 15, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 15, 2026USI · Full3GUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
Jun 14, 2026CAI · Full2GUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
May 27, 2026CAI · Full2GUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
Dec 22, 2025CAI · Full3OOSGUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
Dec 6, 2025CAIII · Driver-only1GUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
Nov 18, 2025CAIII · Driver-only0GUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
Jun 16, 2025CAII · Walk-around0GUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
May 27, 2025CAII · Walk-around0GUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
May 6, 2025USII · Walk-around0GUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
Jan 19, 2025CAI · Full0GUADALUPE DE JESUS LOPEZ SALMON 21453409H3763/CA
Dec 10, 2024CAI · Full0GUADALUPE DE JESUS LOPEZ SALMON 21453409H03763/CA
May 16, 2024TXII · Walk-around0ROYAL FREIGHT LP 959806R4624HY/TN
Mar 4, 2024TNI · Full1OOSROYAL FREIGHT LP 959806R4624HY/TN
Jan 9, 2024TXII · Walk-around0ROYAL FREIGHT LP 959806R4624HY/TN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GUADALUPE DE JESUS LOPEZ SALMON2145340Dec 10, 2024Jun 15, 202611BN
ROYAL FREIGHT LP959806Jan 9, 2024May 16, 20243TX
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.
9H03763CA1GUADALUPE DE JESUS LOPEZ SALMONDec 10, 2024Jun 15, 202610
9H3763CAGUADALUPE DE JESUS LOPEZ SALMONJan 19, 2025Jan 19, 20251
R4624HYTNROYAL FREIGHT LPJan 9, 2024May 16, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026