Equipment unit · VIN-decoded · NHTSA vPIC

2021 Freightliner Cascadia

3AKJHHDR1MSMW5666 · Truck-Tractor · TRUCK
126Sleeper
Carriers run under2
37 mo
Inspections10
all-time
OOS inspections4
of 10
First seenJun 24, 2023
OH
Last seenJul 16, 2026
CA
Inspected under 2 different carriers in 37 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
3AKJHHDR1MSMW5666
Make
Freightliner
Model
Cascadia
Model year
2021
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
3AK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
JHHDR

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
MW5666

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
FREIGHTLINER

Prefix basis · 146,134 decoded VINs at 100.0% prefix purity.

Model
Cascadia

Prefix basis · 146,134 decoded VINs at 100.0% prefix purity.

Model line
126

Sourced label · prefix basis 146,134 decoded VINs at 100.0% prefix purity.

Generation
126

Sourced label · prefix basis 146,134 decoded VINs at 100.0% prefix purity.

Cab type
Sleeper

Sourced label · prefix basis 146,134 decoded VINs at 100.0% prefix purity.

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
FREIGHTLINER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Cascadia

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jun 24, 2023 – Jul 16, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 16, 2026CAIII · Driver-only1ZALMAI TRUCKING LLC 4416865R792469/TX
Jun 14, 2026NMII · Walk-around0ZALMAI TRUCKING LLC 4416865R792469/TX
May 18, 2026NMIII · Driver-only1ZALMAI TRUCKING LLC 4416865R792469/TX
Apr 28, 2026OKI · Full2OOSZALMAI TRUCKING LLC 4416865R792469/TX
Apr 28, 2026OKI · Full2OOSZALMAI TRUCKING LLC 4416865R792469/TX
Apr 28, 2026OKI · Full2OOSZALMAI TRUCKING LLC 4416865R792469/TX
Feb 18, 2024MOII · Walk-around1OOSSUPREME TRUCKING GROUP LLC 32803673114254/IN
Oct 20, 2023NMIII · Driver-only1SUPREME TRUCKING GROUP LLC 32803673114254/IN
Jul 21, 2023CAI · Full0SUPREME TRUCKING GROUP LLC 32803673114254/IN
Jun 24, 2023OHIII · Driver-only2SUPREME TRUCKING GROUP LLC 32803673114254/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ZALMAI TRUCKING LLC4416865Apr 28, 2026Jul 16, 20266TX
SUPREME TRUCKING GROUP LLC3280367Jun 24, 2023Feb 18, 20244NJ
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.
R792469TX1ZALMAI TRUCKING LLCApr 28, 2026Jul 16, 20266
3114254INSUPREME TRUCKING GROUP LLCJun 24, 2023Feb 18, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026