Equipment unit · VIN-decoded · NHTSA vPIC

1996 Peterbilt 379

1XP5DB8X1TD399536 · Truck-Tractor · TRUCK
Carriers run under1
23 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJul 9, 2024
WA
Last seenJun 10, 2026
UT
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XP5DB8X1TD399536
Make
Peterbilt
Model
379
Model year
1996
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
5DB8X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1996 or 2026

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

North American serial sequence
399536

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 · 702 decoded VINs at 100.0% prefix purity.

Model
379

Prefix basis · 702 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
1996

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 · Jul 9, 2024 – Jun 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 10, 2026UTIII · Driver-only2WORKIN CLASS TRANSPORT LLC 3413572RP23148/WA
Oct 2, 2024ORIII · Driver-only5WORKIN CLASS TRANSPORT LLC 3413572D50245E/WA
Jul 9, 2024WAIII · Driver-only1WORKIN CLASS TRANSPORT LLC 3413572D50245E/WA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WORKIN CLASS TRANSPORT LLC3413572Jul 9, 2024Jun 10, 20263WA
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.
RP23148WAWORKIN CLASS TRANSPORT LLCJun 10, 2026Jun 10, 20261
D50245EWAWORKIN CLASS TRANSPORT LLCJul 9, 2024Oct 2, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 28, 2026