Equipment unit · VIN-decoded · NHTSA vPIC

2025 Utility Trailer Manufacturer

1UYFS1291SA446002 · Trailer · TRAILER
Axles · 1 axleBody · FlatLength · 29 ft
Carriers run under1
8 mo
Inspections4
all-time
OOS inspections0
of 4
First seenApr 22, 2025
CA
Last seenDec 24, 2025
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1UYFS1291SA446002
Make
Utility Trailer Manufacturer
Model
Utility Trailer Manufacturer
Model year
2025
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 8, 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
1UY

Deterministic · VIN positions 1–3.

Vehicle descriptor section
FS129

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1995 or 2025

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

North American serial sequence
446002

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
UTILITY TRAILER MANUFACTURER

Prefix basis · 123 decoded VINs at 100.0% prefix purity.

Model
Utility Trailer Manufacturer

Prefix basis · 123 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
2025

Observed directly for this VIN via NHTSA vPIC.

Observed make
UTILITY TRAILER MANUFACTURER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Utility Trailer Manufacturer

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

VIN-level rule claims

Rules published for individual VIN positions beyond the prefix — applied with the WMI, prefix, and model-year guards each rule was validated under. Year-scoped rules were checked against model year 2025, established by the federal observation agreeing with a position-10 candidate.

Axle configuration
1 axle

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

Body family
Flat

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

Trailer length
29 ft

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

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 · Apr 22, 2025 – Dec 24, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 24, 2025CAII · Walk-around1MASSOLO TRUCKING LLC 3831854GB7776/CA
Jul 17, 2025CAI · Full4MASSOLO TRUCKING LLC 3831854GB7776/CA
Jul 9, 2025USI · Full1MASSOLO TRUCKING LLC 3831854GB7776/CA
Apr 22, 2025CAIV · Special2MASSOLO TRUCKING LLC 3831854GB7776/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MASSOLO TRUCKING LLC383185Apr 22, 2025Dec 24, 20254CA
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.
4GB7776CAMASSOLO TRUCKING LLCApr 22, 2025Dec 24, 20254
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 8, 2026