Equipment unit · VIN-decoded · NHTSA vPIC

2021 Freightliner Cascadia

3AKJHHDRXMSMM7781 · Truck-Tractor · TRUCK
126Sleeper
Carriers run under3
34 mo
Inspections6
all-time
OOS inspections4
of 6
First seenOct 17, 2023
ME
Last seenAug 13, 2026
NM
Inspected under 3 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
3AKJHHDRXMSMM7781
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 12, 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
X · valid

Deterministic · position 9; calculated value X.

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
MM7781

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 · Oct 17, 2023 – Aug 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 13, 2026NMII · Walk-around1S1LK INC 3972080P1275734/IL
Aug 9, 2026NEIII · Driver-only1OOSS1LK INC 3972080P 1275734/IL
Dec 5, 2025NDII · Walk-around1OOSS1LK INC 3972080P1275734/IL
Feb 2, 2025CAII · Walk-around1SILK WAY TRANSPORT INC 29074292907429/IL
Oct 24, 2023MDII · Walk-around1OOSWESTERN EXPRESS INC 511412L8836HY/TN
Oct 17, 2023MEII · Walk-around1OOSWESTERN EXPRESS INC 511412L8836HY/TN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
S1LK INC3972080Dec 5, 2025Aug 13, 20263IL
SILK WAY TRANSPORT INC2907429Feb 2, 2025Feb 2, 20251IL
WESTERN EXPRESS INC511412Oct 17, 2023Oct 24, 20232TN
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.
P1275734IL1S1LK INCDec 5, 2025Aug 13, 20262
P 1275734IL1S1LK INCAug 9, 2026Aug 9, 20261
2907429ILSILK WAY TRANSPORT INCFeb 2, 2025Feb 2, 20251
L8836HYTNWESTERN EXPRESS INCOct 17, 2023Oct 24, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026