Equipment unit · VIN-decoded · NHTSA vPIC

1998 Peterbilt 357

1NPALT0X6WD466181 · Truck · INCOMPLETE VEHICLE
Carriers run under2
14 mo
Inspections2
all-time
OOS inspections2
of 2
First seenAug 15, 2023
TX
Last seenOct 16, 2024
TX
Inspected under 2 different carriers in 14 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NPALT0X6WD466181
Make
Peterbilt
Model
357
Model year
1998
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Aug 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
1NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ALT0X

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1998 or 2028

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

North American serial sequence
466181

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 · 167 decoded VINs at 100.0% prefix purity.

Model
357

Prefix basis · 167 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
1998

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
357

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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 · Aug 15, 2023 – Oct 16, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 16, 2024TXII · Walk-around7OOSDTX READY MIX LLC 4271331TJR6696/TX
Aug 15, 2023TXII · Walk-around12OOSAGC CONCRETE READY MIX LLC 3984651FPZ7497/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DTX READY MIX LLC4271331Oct 16, 2024Oct 16, 20241TX
AGC CONCRETE READY MIX LLC3984651Aug 15, 2023Aug 15, 20231TX
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.
TJR6696TXDTX READY MIX LLCOct 16, 2024Oct 16, 20241
FPZ7497TXAGC CONCRETE READY MIX LLCAug 15, 2023Aug 15, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 28, 2026