Equipment unit · VIN-decoded · NHTSA vPIC

2021 Freightliner Cascadia

3AKJHHDR9MSMT5251 · Truck-Tractor · TRUCK
126Sleeper
Carriers run under2
23 mo
Inspections14
all-time
OOS inspections5
of 14
First seenAug 20, 2024
CA
Last seenJul 16, 2026
OR
Inspected under 2 different carriers in 23 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
3AKJHHDR9MSMT5251
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 17, 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
9 · valid

Deterministic · position 9; calculated value 9.

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
MT5251

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 · Aug 20, 2024 – Jul 16, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 16, 2026ORIII · Driver-only0MG BROS TRUCKING LLC 3994207ZP64255/CA
Jul 8, 2026WAI · Full5OOSMG BROS TRUCKING LLC 3994207ZP64255/CA
Jun 4, 2026CAII · Walk-around0MG BROS TRUCKING LLC 3994207ZP64255/CA
Jun 2, 2026CAI · Full3OOSMG BROS TRUCKING LLC 3994207ZP64255/CA
May 18, 2026CAII · Walk-around4OOSMG BROS TRUCKING LLC 3994207ZP64255/CA
Apr 16, 2026CAIII · Driver-only4MG BROS TRUCKING LLC 3994207ZP64255/CA
Apr 13, 2026WAII · Walk-around3MG BROS TRUCKING LLC 3994207ZP64255/CA
Mar 26, 2026ORIII · Driver-only0MG BROS TRUCKING LLC 3994207ZP64255/CA
Jan 14, 2026ORIII · Driver-only1MG BROS TRUCKING LLC 3994207ZP64255/CA
Jan 7, 2026ORI · Full5OOSMG BROS TRUCKING LLC 3994207ZP64255/CA
Nov 25, 2025CAII · Walk-around0MG BROS TRUCKING LLC 3994207ZP64255/CA
Nov 19, 2025ORII · Walk-around0MG BROS TRUCKING LLC 3994207ZP64255CA/CA
Jun 23, 2025CAII · Walk-around3OOSMG BROS TRUCKING LLC 3994207ZP46600/CA
Aug 20, 2024CAII · Walk-around0FEDERAL EXPRESS CORPORATION 868763026586/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MG BROS TRUCKING LLC3994207Jun 23, 2025Jul 16, 202613CA
FEDERAL EXPRESS CORPORATION86876Aug 20, 2024Aug 20, 20241TN
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.
ZP64255CA1MG BROS TRUCKING LLCNov 25, 2025Jul 16, 202611
ZP64255CACAMG BROS TRUCKING LLCNov 19, 2025Nov 19, 20251
ZP46600CAMG BROS TRUCKING LLCJun 23, 2025Jun 23, 20251
3026586INFEDERAL EXPRESS CORPORATIONAug 20, 2024Aug 20, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 17, 2026