Equipment unit · VIN-decoded · NHTSA vPIC

2001 Freightliner XB Chassis

4UZAAUBV91CH57009 · Incomplete - Commercial Bus Chassis · INCOMPLETE VEHICLE
Carriers run under2
29 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJul 7, 2023
OH
Last seenDec 16, 2025
MA
Inspected under 2 different carriers in 29 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
4UZAAUBV91CH57009
Make
Freightliner
Model
XB Chassis
Model year
2001
Body class
Incomplete - Commercial Bus Chassis
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)
Decoded at
Jul 14, 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
4UZ

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AAUBV

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
2001 or 2031

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

North American serial sequence
H57009

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
2001

Observed directly for this VIN via NHTSA vPIC.

Observed make
FREIGHTLINER

Observed directly for this VIN via NHTSA vPIC.

Observed model
XB Chassis

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Incomplete - Commercial Bus Chassis

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 · Jul 7, 2023 – Dec 16, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 16, 2025MAV · Vehicle-only0COLONIAL TROLLEY LLC 433768411BFL/MA
Jun 5, 2024OHV · Vehicle-only1UNLIMITED RECOVERY SOLUTIONS LLC 1837368PWJ4438/OH
Jun 5, 2024OHV · Vehicle-only0UNLIMITED RECOVERY SOLUTIONS LLC 1837368PWJ4438/OH
Jul 7, 2023OHV · Vehicle-only0UNLIMITED RECOVERY SOLUTIONS LLC 1837368PWJ4438/OH
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
COLONIAL TROLLEY LLC4337684Dec 16, 2025Dec 16, 20251MA
UNLIMITED RECOVERY SOLUTIONS LLC1837368Jul 7, 2023Jun 5, 20243OH
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.
11BFLMACOLONIAL TROLLEY LLCDec 16, 2025Dec 16, 20251
PWJ4438OHUNLIMITED RECOVERY SOLUTIONS LLCJul 7, 2023Jun 5, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 14, 2026