Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 389

1NPXD49X5PD830396 · Truck-Tractor · INCOMPLETE VEHICLE
Carriers run under1
31 mo
Inspections12
all-time
OOS inspections1
of 12
First seenJul 19, 2023
NE
Last seenFeb 20, 2026
MT
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NPXD49X5PD830396
Make
Peterbilt
Model
389
Model year
2023
Body class
Truck-Tractor
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 23, 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
1NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
XD49X

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
1993 or 2023

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

North American serial sequence
830396

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 · 1,241 decoded VINs at 100.0% prefix purity.

Model
389

Prefix basis · 1,241 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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
389

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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 · Jul 19, 2023 – Feb 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 20, 2026MTIII · Driver-only0SLAY TRANSPORTATION COMPANY INC 77890V8164HY/TN
Dec 9, 2025MTIII · Driver-only0SLAY TRANSPORTATION COMPANY INC 77890V8164HY/IL
Dec 8, 2025MTIII · Driver-only0SLAY TRANSPORTATION COMPANY INC 77890V8164HY/TN
Jun 24, 2025NDI · Full0SLAY TRANSPORTATION COMPANY INC 77890P3245HY/TN
May 6, 2025MTIII · Driver-only0SLAY TRANSPORTATION COMPANY INC 77890L1870718144/TN
Feb 27, 2025MTII · Walk-around1OOSSLAY TRANSPORTATION COMPANY INC 77890P3245HY/TN
Jan 16, 2025MTIII · Driver-only0SLAY TRANSPORTATION COMPANY INC 77890P3245HY/TN
Jan 11, 2025SDIII · Driver-only0SLAY TRANSPORTATION COMPANY INC 77890P3245HY/TN
May 28, 2024MTIII · Driver-only0SLAY TRANSPORTATION COMPANY INC 77890P3245HY/TN
Mar 26, 2024NEIII · Driver-only0SLAY TRANSPORTATION COMPANY INC 77890P3245HY/TN
Nov 2, 2023ILIII · Driver-only0SLAY TRANSPORTATION COMPANY INC 77890P3245HY/TN
Jul 19, 2023NEIII · Driver-only1SLAY TRANSPORTATION COMPANY INC 77890P3245HY/TN
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SLAY TRANSPORTATION COMPANY INC77890Jul 19, 2023Feb 20, 202612IL
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.
V8164HYTN1SLAY TRANSPORTATION COMPANY INCDec 8, 2025Feb 20, 20262
V8164HYIL1SLAY TRANSPORTATION COMPANY INCDec 9, 2025Dec 9, 20251
P3245HYTN1SLAY TRANSPORTATION COMPANY INCJul 19, 2023Jun 24, 20258
L1870718144TN1SLAY TRANSPORTATION COMPANY INCMay 6, 2025May 6, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026