Equipment unit · VIN-decoded · NHTSA vPIC

2018 Freightliner SD122

3ALHGNDR7JDJM2136 · Truck · INCOMPLETE VEHICLE
Carriers run under1
27 mo
Inspections5
all-time
OOS inspections1
of 5
First seenSep 7, 2023
TX
Last seenDec 10, 2025
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3ALHGNDR7JDJM2136
Make
Freightliner
Model
SD122
Model year
2018
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 3, 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
3AL

Deterministic · VIN positions 1–3.

Vehicle descriptor section
HGNDR

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1988 or 2018

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
JM2136

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 · 21 decoded VINs at 95.2% prefix purity.

Model
SD122

Prefix basis · 21 decoded VINs at 95.2% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

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
2018

Observed directly for this VIN via NHTSA vPIC.

Observed make
FREIGHTLINER

Observed directly for this VIN via NHTSA vPIC.

Observed model
SD122

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 7, 2023 – Dec 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 10, 2025TXII · Walk-around0C COBBLE STONE TRUCKING LLC 2984193TMT7657/TX
Oct 13, 2025TXII · Walk-around0C COBBLE STONE TRUCKING LLC 2984193TMT7657/TX
Mar 31, 2025TXIII · Driver-only0C COBBLE STONE TRUCKING LLC 2984193TMT7657/TX
Dec 26, 2024TXII · Walk-around2C COBBLE STONE TRUCKING LLC 2984193TMT7657/TX
Sep 7, 2023TXII · Walk-around3OOSC COBBLE STONE TRUCKING LLC 2984193JWJ5339/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
C COBBLE STONE TRUCKING LLC2984193Sep 7, 2023Dec 10, 20255TX
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.
TMT7657TXC COBBLE STONE TRUCKING LLCDec 26, 2024Dec 10, 20254
JWJ5339TXC COBBLE STONE TRUCKING LLCSep 7, 2023Sep 7, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 3, 2026