Equipment unit · VIN-decoded · NHTSA vPIC

2021 Ic Bus PB105

4DRBUPWN1MB047116 · Bus - School Bus · BUS
Carriers run under2
36 mo
Inspections3
all-time
OOS inspections0
of 3
First seenOct 4, 2023
MI
Last seenOct 28, 2026
MI
Inspected under 2 different carriers in 36 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
4DRBUPWN1MB047116
Make
Ic Bus
Model
PB105
Model year
2021
Body class
Bus - School Bus
Vehicle type
BUS
GVWR
Class 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)
Decoded at
Sep 20, 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
BUPWN

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1991 or 2021

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

North American serial sequence
047116

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 · 117 decoded VINs at 100.0% prefix purity.

Model
PB105

Prefix basis · 117 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.

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 · Oct 4, 2023 – Oct 28, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 28, 2026MIV · Vehicle-only0—DURHAM SCHOOL SERVICES LP 350651DD46912/MI
Oct 15, 2025MIV · Vehicle-only0—TRINITY INC 822553DD46912/MI
Oct 4, 2023MIV · Vehicle-only0—TRINITY INC 822553DD46912/MI
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DURHAM SCHOOL SERVICES LP350651Oct 28, 2026Oct 28, 20261IL
TRINITY INC822553Oct 4, 2023Oct 15, 20252MI
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.
DD46912MI1DURHAM SCHOOL SERVICES LPOct 28, 2026 → Oct 28, 20261
DD46912MI—TRINITY INCOct 4, 2023 → Oct 15, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Sep 20, 2026