Equipment unit · VIN-decoded · NHTSA vPIC

2021 Muv-All

4M9KB5334MS012275 · Trailer · TRAILER
Carriers run under2
14 mo
Inspections3
all-time
OOS inspections1
of 3
First seenFeb 19, 2025
MI
Last seenApr 2, 2026
MO
Inspected under 2 different carriers in 14 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
4M9KB5334MS012275
Make
Muv-All
Model
Muv-All
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 9, 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
4M9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
KB533

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
012275

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
MUV-ALL

Prefix basis · 31 decoded VINs at 100.0% prefix purity.

Model
Muv-All

Prefix basis · 31 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
MUV-ALL

Observed directly for this VIN via NHTSA vPIC.

Observed model
Muv-All

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 · Feb 19, 2025 – Apr 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 2, 2026MOII · Walk-around5ROCKING E TRUCKING LLC 4397150PT1221125/AR
Jul 26, 2025IAIII · Driver-only0ROCKING E TRUCKING LLC 4397150PT221125/AR
Feb 19, 2025MIII · Walk-around4OOSL & M STEEL COMPANY LLC 1415641PT221125/AR
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROCKING E TRUCKING LLC4397150Jul 26, 2025Apr 2, 20262AR
L & M STEEL COMPANY LLC1415641Feb 19, 2025Feb 19, 20251NE
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.
PT1221125ARROCKING E TRUCKING LLCApr 2, 2026Apr 2, 20261
PT221125ARROCKING E TRUCKING LLCJul 26, 2025Jul 26, 20251
PT221125ARL & M STEEL COMPANY LLCFeb 19, 2025Feb 19, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026