Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 389

1XPXD40X4PD871220 · Truck-Tractor · TRUCK
Carriers run under1
16 mo
Inspections71
all-time
OOS inspections0
of 71
First seenApr 23, 2025
NY
Last seenAug 5, 2026
NY
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPXD40X4PD871220
Make
Peterbilt
Model
389
Model year
2023
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 14, 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.

Source · 49 CFR Part 565 ↗
Vehicle descriptor section
XD40X

Deterministic · VIN positions 4–8.

Source · 49 CFR Part 565 ↗
Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Source · 49 CFR Part 565 ↗
Model year candidates
1993 or 2023

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

Source · 49 CFR Part 565 ↗
North American serial sequence
871220

Deterministic · positions 12–17 for a North American WMI.

Source · 49 CFR Part 565 ↗

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 · 1,508 decoded VINs at 100.0% prefix purity.

Source · Vektor corpus / NHTSA vPIC ↗
Model
389

Prefix basis · 1,508 decoded VINs at 100.0% prefix purity.

Source · Vektor corpus / NHTSA vPIC ↗
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.

Source · Vektor corpus / NHTSA vPIC ↗
Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Source · Vektor corpus / NHTSA vPIC ↗
Observed model
389

Observed directly for this VIN via NHTSA vPIC.

Source · Vektor corpus / NHTSA vPIC ↗
Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Source · Vektor corpus / NHTSA vPIC ↗
Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

Source · Vektor corpus / NHTSA vPIC ↗
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

Source · Vektor corpus / 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 · Apr 23, 2025 – Aug 5, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 5, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Aug 4, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 30, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 29, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 28, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 27, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 23, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 22, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 21, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 20, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 17, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 16, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 15, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 13, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 9, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 8, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 7, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 6, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 2, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 1, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 30, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 30, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 29, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 25, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 25, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 24, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 23, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 22, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 18, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 17, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 16, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 15, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 15, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 11, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 10, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 9, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 8, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 5, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 4, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 3, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 2, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 1, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
May 28, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
May 27, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
May 26, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Feb 24, 2026MIIII · Driver-only1—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jan 23, 2026AZII · Walk-around0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jan 7, 2026AZIII · Driver-only0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Oct 22, 2025NYII · Walk-around0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Oct 17, 2025NYII · Walk-around0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Oct 15, 2025NYII · Walk-around1—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Oct 10, 2025NYII · Walk-around0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Oct 8, 2025NYII · Walk-around1—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Sep 19, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Sep 15, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Sep 12, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Sep 8, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Aug 14, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Aug 11, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Aug 4, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 31, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 28, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 24, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 21, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 17, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 14, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jul 10, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 30, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Jun 26, 2025PAI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
May 21, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
Apr 23, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668434849PF/NY
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHERN TIER EXPRESS INC276684Apr 23, 2025Aug 5, 202671NY
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.
34849PFNY1SOUTHERN TIER EXPRESS INCApr 23, 2025 → Aug 5, 202671
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026