Equipment unit · VIN-decoded · NHTSA vPIC

2021 Walker NON-DOT/TC Spec

5WSABB334MN271498 · Trailer · TRAILER
Carriers run under3
28 mo
Inspections5
all-time
OOS inspections0
of 5
First seenAug 9, 2023
IA
Last seenDec 14, 2025
WI
Inspected under 3 different carriers in 28 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
5WSABB334MN271498
Make
Walker
Model
NON-DOT/TC Spec
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 3, 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
5WS

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ABB33

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
271498

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
WALKER

Observed directly for this VIN via NHTSA vPIC.

Observed model
NON-DOT/TC Spec

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 9, 2023 – Dec 14, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 14, 2025WIIII · Driver-only1ATWATER COMPANIES INC 2991008MILK521/IA
Apr 9, 2025WII · Full5JOHNSON LIVESTOCK LLC 680067MILK521/IA
Mar 26, 2024IAI · Full2ATWATER COMPANIES INC 2991008MILK521/IA
Oct 27, 2023IAIII · Driver-only1THOMAS FARMS CUSTOM AG LLC 2475590MILK521/IA
Aug 9, 2023IAII · Walk-around4ATWATER COMPANIES INC 2991008MILK521/IA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ATWATER COMPANIES INC2991008Aug 9, 2023Dec 14, 20253IA
JOHNSON LIVESTOCK LLC680067Apr 9, 2025Apr 9, 20251IA
THOMAS FARMS CUSTOM AG LLC2475590Oct 27, 2023Oct 27, 20231IA
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.
MILK521IAATWATER COMPANIES INCAug 9, 2023Dec 14, 20253
MILK521IAJOHNSON LIVESTOCK LLCApr 9, 2025Apr 9, 20251
MILK521IATHOMAS FARMS CUSTOM AG LLCOct 27, 2023Oct 27, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 3, 2026