Equipment unit · VIN-decoded · NHTSA vPIC

1997 Peterbilt 378

1XPFPB0X3VD431610 · Truck-Tractor · TRUCK
Carriers run under1
23 mo
Inspections5
all-time
OOS inspections3
of 5
First seenNov 21, 2023
WA
Last seenOct 28, 2025
WA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPFPB0X3VD431610
Make
Peterbilt
Model
378
Model year
1997
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 29, 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
FPB0X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1997 or 2027

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

North American serial sequence
431610

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 · 5 decoded VINs at 100.0% prefix purity.

Model
378

Prefix basis · 5 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
1997

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
378

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 · Nov 21, 2023 – Oct 28, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 28, 2025WAII · Walk-around5OOSPORTER W YETT COMPANY 370903YADS385/OR
Jul 22, 2025ORII · Walk-around1PORTER W YETT COMPANY 370903YACR226/OR
Dec 2, 2024ORI · Full2PORTER W YETT COMPANY 370903YACR226/OR
Nov 29, 2023WAII · Walk-around2OOSPORTER W YETT COMPANY 370903YACR226/WA
Nov 21, 2023WAII · Walk-around1OOSPORTER W YETT COMPANY 370903YACR226/OR
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PORTER W YETT COMPANY370903Nov 21, 2023Oct 28, 20255OR
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.
YADS385ORPORTER W YETT COMPANYOct 28, 2025Oct 28, 20251
YACR226ORPORTER W YETT COMPANYNov 21, 2023Jul 22, 20253
YACR226WAPORTER W YETT COMPANYNov 29, 2023Nov 29, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026