Equipment unit · VIN-decoded · NHTSA vPIC

1989 Peterbilt 379

1XP5DB0X5KD285906 · Truck-Tractor · TRUCK
Carriers run under1
4 mo
Inspections3
all-time
OOS inspections3
of 3
First seenOct 6, 2025
MO
Last seenFeb 5, 2026
OH
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XP5DB0X5KD285906
Make
Peterbilt
Model
379
Model year
1989
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 28, 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
5DB0X

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
1989 or 2019

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

North American serial sequence
285906

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 · 443 decoded VINs at 100.0% prefix purity.

Model
379

Prefix basis · 443 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
1989

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 · Oct 6, 2025 – Feb 5, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 5, 2026OHII · Walk-around5OOSSHOW STOPPER EXPRESS LLC 254829690504Z/WI
Jan 30, 2026WIII · Walk-around8OOSSHOW STOPPER EXPRESS LLC 254829690504Z/WI
Oct 6, 2025MOI · Full5OOSSHOW STOPPER EXPRESS LLC 254829690504Z/WI
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SHOW STOPPER EXPRESS LLC2548296Oct 6, 2025Feb 5, 20263WI
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.
90504ZWISHOW STOPPER EXPRESS LLCOct 6, 2025Feb 5, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 28, 2026