Equipment unit · VIN-decoded · NHTSA vPIC

2021 Benson/wabash Aluminium Flatbed

1TTE533A4M3281922 · Trailer · TRAILER
Carriers run under1
26 mo
Inspections6
all-time
OOS inspections1
of 6
First seenAug 3, 2023
LA
Last seenOct 10, 2025
TN
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1TTE533A4M3281922
Make
Benson/wabash
Model
Aluminium Flatbed
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 22, 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
E533A

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
281922

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 · 110 decoded VINs at 100.0% prefix purity.

Model
Aluminium Flatbed

Prefix basis · 110 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
2021

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 · Aug 3, 2023 – Oct 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 10, 2025TNII · Walk-around2OOSDELTA CARRIER GROUP INC 2372907QA40IP/FL
Oct 10, 2025TNII · Walk-around1DELTA CARRIER GROUP INC 2372907QA4OIP/FL
Oct 22, 2024NYII · Walk-around4DELTA CARRIER GROUP INC 2372907QA40IP/FL
Apr 16, 2024NYII · Walk-around1DELTA CARRIER GROUP INC 2372907QA401P/FL
Feb 14, 2024KSII · Walk-around0DELTA CARRIER GROUP INC 2372907QA40IP/FL
Aug 3, 2023LAIII · Driver-only1DELTA CARRIER GROUP INC 2372907QA4OIP/FL
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DELTA CARRIER GROUP INC2372907Aug 3, 2023Oct 10, 20256IL
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.
QA40IPFLDELTA CARRIER GROUP INCFeb 14, 2024Oct 10, 20253
QA4OIPFLDELTA CARRIER GROUP INCAug 3, 2023Oct 10, 20252
QA401PFLDELTA CARRIER GROUP INCApr 16, 2024Apr 16, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026