Equipment unit · VIN-decoded · NHTSA vPIC

2020 Ic Bus PB105

4DRBUC8N4LB183793 · Bus - School Bus · BUS
Carriers run under1
37 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJul 18, 2023
CA
Last seenAug 6, 2026
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
4DRBUC8N4LB183793
Make
Ic Bus
Model
PB105
Model year
2020
Body class
Bus - School Bus
Vehicle type
BUS
GVWR
Class 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)
Decoded at
Aug 9, 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
4DR

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BUC8N

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1990 or 2020

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

North American serial sequence
183793

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
IC BUS

Prefix basis · 824 decoded VINs at 100.0% prefix purity.

Model
PB105

Prefix basis · 824 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
2020

Observed directly for this VIN via NHTSA vPIC.

Observed make
IC BUS

Observed directly for this VIN via NHTSA vPIC.

Observed model
PB105

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Bus - School Bus

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
BUS

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 18, 2023 – Aug 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 6, 2026CAV · Vehicle-only3SAN JUAN UNIFIED SCHOOL DISTRICT 26483181578900/CA
Aug 5, 2025CAV · Vehicle-only1SAN JUAN UNIFIED SCHOOL DISTRICT 26483181578900/CA
Jul 29, 2024CAV · Vehicle-only0SAN JUAN UNIFIED SCHOOL DISTRICT 26483181578900/CA
Jul 18, 2023CAV · Vehicle-only2SAN JUAN UNIFIED SCHOOL DISTRICT 26483181578900/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SAN JUAN UNIFIED SCHOOL DISTRICT2648318Jul 18, 2023Aug 6, 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.
1578900CA1SAN JUAN UNIFIED SCHOOL DISTRICTJul 18, 2023Aug 6, 20264
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026