Equipment unit · VIN-decoded · NHTSA vPIC

2000 Peterbilt 379

1XP5DB9X3YD522551 · Truck-Tractor · TRUCK
Carriers run under1
27 mo
Inspections6
all-time
OOS inspections4
of 6
First seenAug 15, 2023
TX
Last seenNov 23, 2025
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XP5DB9X3YD522551
Make
Peterbilt
Model
379
Model year
2000
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
5DB9X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
2000 or 2030

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

North American serial sequence
522551

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 · 13,463 decoded VINs at 100.0% prefix purity.

Model
379

Prefix basis · 13,463 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
2000

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
379

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 · Aug 15, 2023 – Nov 23, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 23, 2025TXII · Walk-around8OOSVANESSA EXPRESS LLC 3950292R756875/TX
Mar 4, 2025SDIII · Driver-only0VANESSA EXPRESS LLC 3950292R756875/TX
Dec 20, 2024INII · Walk-around3OOSVANESSA EXPRESS LLC 3950292R756875/TX
Oct 22, 2024TXII · Walk-around6OOSVANESSA EXPRESS LLC 395029224S795M/TX
Sep 11, 2024TXII · Walk-around8OOSVANESSA EXPRESS LLC 395029225T738M/TX
Aug 15, 2023TXII · Walk-around5VANESSA EXPRESS LLC 3950292R656071/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
VANESSA EXPRESS LLC3950292Aug 15, 2023Nov 23, 20256TX
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.
R756875TXVANESSA EXPRESS LLCDec 20, 2024Nov 23, 20253
24S795MTXVANESSA EXPRESS LLCOct 22, 2024Oct 22, 20241
25T738MTXVANESSA EXPRESS LLCSep 11, 2024Sep 11, 20241
R656071TXVANESSA EXPRESS LLCAug 15, 2023Aug 15, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026