Equipment unit · VIN-decoded · NHTSA vPIC

2023 Freightliner MT 55 Chassis

4UZAARFCXPCUY7901 · Step Van/Walk-in Van · INCOMPLETE VEHICLE
Carriers run under1
5 mo
Inspections3
all-time
OOS inspections0
of 3
First seenSep 9, 2025
NY
Last seenFeb 10, 2026
NY
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
4UZAARFCXPCUY7901
Make
Freightliner
Model
MT 55 Chassis
Model year
2023
Body class
Step Van/Walk-in Van
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 6: 19,501 - 26,000 lb (8,845 - 11,794 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
4UZ

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AARFC

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1993 or 2023

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

North American serial sequence
UY7901

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
FREIGHTLINER

Prefix basis · 6 decoded VINs at 100.0% prefix purity.

Model
MT 55 Chassis

Prefix basis · 6 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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
FREIGHTLINER

Observed directly for this VIN via NHTSA vPIC.

Observed model
MT 55 Chassis

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Step Van/Walk-in Van

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 6: 19,501 - 26,000 lb (8,845 - 11,794 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 · Sep 9, 2025 – Feb 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 10, 2026NYIII · Driver-only0W B MASON CO INC 34898194219NE/NY
Oct 27, 2025NYII · Walk-around1W B MASON CO INC 34898194219NE/NY
Sep 9, 2025NYII · Walk-around1W B MASON CO INC 34898194219NE/NY
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
W B MASON CO INC348981Sep 9, 2025Feb 10, 20263MA
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.
94219NENYW B MASON CO INCSep 9, 2025Feb 10, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026