Equipment unit · VIN-decoded · NHTSA vPIC

2021 Freightliner Cascadia

3AKJHHDR3MSMK7758 · Truck-Tractor · TRUCK
126Sleeper
Carriers run under2
34 mo
Inspections6
all-time
OOS inspections1
of 6
First seenOct 19, 2023
VA
Last seenAug 25, 2026
SD
Inspected under 2 different carriers in 34 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
3AKJHHDR3MSMK7758
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 30, 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
3 · valid

Deterministic · position 9; calculated value 3.

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
MK7758

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 · Oct 19, 2023 – Aug 25, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 25, 2026SDI · Full1—ROCK SOLID LOGISTICS INC 36950533916042/IN
Aug 25, 2026NDIII · Driver-only1—ROCK SOLID LOGISTICS INC 36950533916042/IN
Jul 24, 2026CAIII · Driver-only1OOSROCK SOLID LOGISTICS INC 36950533916042/IN
May 5, 2026WAII · Walk-around4—ROCK SOLID LOGISTICS INC 36950533916042/IN
Nov 23, 2025INIII · Driver-only1—ROCK SOLID LOGISTICS INC 36950533916042/IN
Oct 19, 2023VAII · Walk-around0—WAL-MART TRANSPORTATION LLC 635853EF856/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROCK SOLID LOGISTICS INC3695053Nov 23, 2025Aug 25, 20265IN
WAL-MART TRANSPORTATION LLC63585Oct 19, 2023Oct 19, 20231AR
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.
3916042IN1ROCK SOLID LOGISTICS INCNov 23, 2025 → Aug 25, 20265
3EF856OK—WAL-MART TRANSPORTATION LLCOct 19, 2023 → Oct 19, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 30, 2026