Equipment unit · VIN-decoded · NHTSA vPIC

2026 Peterbilt 589

1XPEP4EX4TD789831 · Truck-Tractor · TRUCK
Carriers run under1
9 mo
Inspections68
all-time
OOS inspections6
of 68
First seenOct 7, 2025
NY
Last seenJul 31, 2026
NY
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPEP4EX4TD789831
Make
Peterbilt
Model
589
Model year
2026
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
EP4EX

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
1996 or 2026

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

Source · 49 CFR Part 565 ↗
North American serial sequence
789831

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 · 113 decoded VINs at 100.0% prefix purity.

Source · Vektor corpus / NHTSA vPIC ↗
Model
589

Prefix basis · 113 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
2026

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
589

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 · Oct 7, 2025 – Jul 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 31, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 29, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 27, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 24, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 22, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 20, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 17, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 15, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 14, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 14, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 13, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 9, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 7, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jul 2, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 30, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 30, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 26, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 24, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 22, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 19, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 17, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 15, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 12, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 10, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 8, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 5, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 5, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 3, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jun 1, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 29, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 27, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 26, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 21, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 20, 2026NYI · Full2OOSSOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 18, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 15, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 13, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 11, 2026NYI · Full1OOSSOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 8, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 6, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 4, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
May 1, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Apr 29, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Apr 27, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Apr 24, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Apr 22, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Apr 20, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Mar 25, 2026NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Feb 16, 2026NYI · Full2OOSSOUTHERN TIER EXPRESS INC 27668450298PF/NY
Jan 27, 2026NYI · Full1—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Dec 22, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Dec 16, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Dec 8, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Dec 2, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Nov 25, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Nov 20, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Nov 18, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Nov 11, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Nov 6, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Nov 4, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Oct 30, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Oct 28, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Oct 23, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Oct 21, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Oct 16, 2025NYI · Full1OOSSOUTHERN TIER EXPRESS INC 27668450298PF/NY
Oct 14, 2025NYI · Full0—SOUTHERN TIER EXPRESS INC 27668450298PF/NY
Oct 9, 2025NYI · Full3OOSSOUTHERN TIER EXPRESS INC 27668450298PF/NY
Oct 7, 2025NYI · Full1OOSSOUTHERN TIER EXPRESS INC 27668450298PF/NY
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHERN TIER EXPRESS INC276684Oct 7, 2025Jul 31, 202668NY
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.
50298PFNY1SOUTHERN TIER EXPRESS INCOct 7, 2025 → Jul 31, 202668
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026