Equipment unit · VIN-decoded · NHTSA vPIC

1991 Transcraft

1TTF48207M1036556 · Trailer · TRAILER
Carriers run under2
2 mo
Inspections2
all-time
OOS inspections2
of 2
First seenDec 23, 2025
AZ
Last seenFeb 18, 2026
CA
Inspected under 2 different carriers in 2 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
1TTF48207M1036556
Make
Transcraft
Model
Transcraft
Model year
1991
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 30, 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
1TT

Deterministic · VIN positions 1–3.

Vehicle descriptor section
F4820

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
036556

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
TRANSCRAFT

Prefix basis · 2,003 decoded VINs at 100.0% prefix purity.

Model
Transcraft

Prefix basis · 2,003 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
1991

Observed directly for this VIN via NHTSA vPIC.

Observed make
TRANSCRAFT

Observed directly for this VIN via NHTSA vPIC.

Observed model
Transcraft

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.

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 · Dec 23, 2025 – Feb 18, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 18, 2026CAII · Walk-around2OOSSAN DIEGO HEAVY HAUL AND CRANE INC 43596564WD6330/CA
Dec 23, 2025AZI · Full8OOSENVIROCLEAN ENVIRONMENTAL SERVICES LLC 43573004WD6330/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SAN DIEGO HEAVY HAUL AND CRANE INC4359656Feb 18, 2026Feb 18, 20261CA
ENVIROCLEAN ENVIRONMENTAL SERVICES LLC4357300Dec 23, 2025Dec 23, 20251CA
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.
4WD6330CASAN DIEGO HEAVY HAUL AND CRANE INCFeb 18, 2026Feb 18, 20261
4WD6330CAENVIROCLEAN ENVIRONMENTAL SERVICES LLCDec 23, 2025Dec 23, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 30, 2026