Equipment unit · VIN-decoded · NHTSA vPIC

2020 Benson/wabash Aluminium Flatbed

1TTF532A9L3221087 · Trailer · TRAILER
Carriers run under3
15 mo
Inspections6
all-time
OOS inspections1
of 6
First seenJan 23, 2025
NM
Last seenApr 15, 2026
TN
Inspected under 3 different carriers in 15 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
1TTF532A9L3221087
Make
Benson/wabash
Model
Aluminium Flatbed
Model year
2020
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 23, 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
F532A

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1990 or 2020

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

North American serial sequence
221087

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
BENSON/WABASH

Prefix basis · 1,433 decoded VINs at 100.0% prefix purity.

Model
Aluminium Flatbed

Prefix basis · 1,433 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
2020

Observed directly for this VIN via NHTSA vPIC.

Observed make
BENSON/WABASH

Observed directly for this VIN via NHTSA vPIC.

Observed model
Aluminium Flatbed

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 · Jan 23, 2025 – Apr 15, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 15, 2026TNII · Walk-around1OOSSTILL ROLLING TRANSPORT LLC 3796541723699ST/IL
Mar 27, 2026NYIII · Driver-only1STILL ROLLING TRANSPORT LLC 3796541723699ST/IL
Jan 26, 2026NMIII · Driver-only1MERV GROUP LLC 4217290723699ST/IL
Oct 6, 2025ALIII · Driver-only0MERV GROUP LLC 4217290723699ST/IL
Oct 3, 2025IDII · Walk-around1MERV GROUP LLC 4217290723699ST/IL
Jan 23, 2025NMIII · Driver-only1SECURE TRUCK LINE INC 2803336723699ST/IL
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
STILL ROLLING TRANSPORT LLC3796541Mar 27, 2026Apr 15, 20262FL
MERV GROUP LLC4217290Oct 3, 2025Jan 26, 20263IL
SECURE TRUCK LINE INC2803336Jan 23, 2025Jan 23, 20251IL
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.
723699STILSTILL ROLLING TRANSPORT LLCMar 27, 2026Apr 15, 20262
723699STILMERV GROUP LLCOct 3, 2025Jan 26, 20263
723699STILSECURE TRUCK LINE INCJan 23, 2025Jan 23, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026