Equipment unit · VIN-decoded · NHTSA vPIC

2017 Peterbilt 389

1XPXDP9X6HD444482 · Truck-Tractor · TRUCK
Carriers run under1
31 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJan 3, 2024
MT
Last seenAug 24, 2026
WY
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPXDP9X6HD444482
Make
Peterbilt
Model
389
Model year
2017
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Aug 27, 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
XDP9X

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1987 or 2017

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

North American serial sequence
444482

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 · 2,292 decoded VINs at 100.0% prefix purity.

Model
389

Prefix basis · 2,292 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
2017

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
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 3, 2024 – Aug 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 24, 2026WYIII · Driver-only0DDWT HOLDINGS INC 28287080BK833/AB
Aug 19, 2026MTIII · Driver-only0DDWT HOLDINGS INC 28287080BK833/AB
Jan 3, 2024MTIII · Driver-only1DDWT HOLDINGS INC 2828708E67934/AB
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DDWT HOLDINGS INC2828708Jan 3, 2024Aug 24, 20263AB
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.
0BK833AB1DDWT HOLDINGS INCAug 19, 2026Aug 24, 20262
E67934ABDDWT HOLDINGS INCJan 3, 2024Jan 3, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 27, 2026