Equipment unit · VIN-decoded · NHTSA vPIC

2021 Freightliner Cascadia

3AKJHHDR9MSMZ6678 · Truck-Tractor · TRUCK
126Sleeper
Carriers run under2
36 mo
Inspections6
all-time
OOS inspections2
of 6
First seenJul 26, 2023
TX
Last seenJul 4, 2026
IL
Inspected under 2 different carriers in 36 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
3AKJHHDR9MSMZ6678
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
Jul 2, 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
MZ6678

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.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 26, 2023 – Jul 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 4, 2026ILIII · Driver-only0—ROCK SOLID LOGISTICS INC 36950533613094/IN
Jan 5, 2026LAII · Walk-around1—ROCK SOLID LOGISTICS INC 36950533613094/IN
Sep 30, 2025TXIII · Driver-only1—ROCK SOLID LOGISTICS INC 36950533613094/IN
May 28, 2025MOI · Full1OOSROCK SOLID LOGISTICS INC 36950533613094/IN
Mar 1, 2024ARIII · Driver-only0—ROCK SOLID LOGISTICS INC 3695053P1094034/IL
Jul 26, 2023TXII · Walk-around3OOSDS1 LOGISTICS INC 2923266P1094034/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROCK SOLID LOGISTICS INC3695053Mar 1, 2024Jul 4, 20265IN
DS1 LOGISTICS INC2923266Jul 26, 2023Jul 26, 20231IL
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.
3613094IN1ROCK SOLID LOGISTICS INCMay 28, 2025 → Jul 4, 20264
P1094034IL—ROCK SOLID LOGISTICS INCMar 1, 2024 → Mar 1, 20241
P1094034IL—DS1 LOGISTICS INCJul 26, 2023 → Jul 26, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 2, 2026