Equipment unit · VIN-decoded · NHTSA vPIC

1998 Peterbilt 320

1NPZH77X1WD710305 · Truck · INCOMPLETE VEHICLE
Carriers run under1
15 mo
Inspections4
all-time
OOS inspections0
of 4
First seenApr 5, 2025
CA
Last seenJul 22, 2026
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NPZH77X1WD710305
Make
Peterbilt
Model
320
Model year
1998
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)
Decoded at
Jul 26, 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
ZH77X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
710305

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
320

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 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)

Observed directly for this VIN via NHTSA vPIC.

Not established

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Apr 5, 2025 – Jul 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 22, 2026CAI · Full0C R & R INCORPORATED 53155238929M4/CA
Dec 9, 2025CAII · Walk-around5C R & R INCORPORATED 5315528A67188/CA
Dec 9, 2025CAI · Full0C R & R INCORPORATED 5315528A67188/CA
Apr 5, 2025CAII · Walk-around4C R & R INCORPORATED 5315528A67188/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
C R & R INCORPORATED531552Apr 5, 2025Jul 22, 20264CA
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.
38929M4CA1C R & R INCORPORATEDJul 22, 2026Jul 22, 20261
8A67188CAC R & R INCORPORATEDApr 5, 2025Dec 9, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026