Equipment unit · VIN-decoded · NHTSA vPIC

2018 Freightliner Cascadia

3AKJGLDRXJSJZ6312 · Truck-Tractor · TRUCK
125Sleeper
Carriers run under2
34 mo
Inspections11
all-time
OOS inspections3
of 11
First seenOct 10, 2023
US
Last seenAug 24, 2026
PA
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
3AKJGLDRXJSJZ6312
Make
Freightliner
Model
Cascadia
Model year
2018
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 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
JGLDR

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

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
JZ6312

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 · 16,819 decoded VINs at 100.0% prefix purity.

Model
Cascadia

Prefix basis · 16,819 decoded VINs at 100.0% prefix purity.

Model line
125

Sourced label · prefix basis 16,819 decoded VINs at 100.0% prefix purity.

Generation
125

Sourced label · prefix basis 16,819 decoded VINs at 100.0% prefix purity.

Cab type
Sleeper

Sourced label · prefix basis 16,819 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
2018

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 10, 2023 – Aug 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 24, 2026PAI · Full4OAK SERVICES LLC 3449554ZP89922/CA
May 11, 2026OHII · Walk-around3OOSOAK SERVICES LLC 3449554ZP89922/CA
Feb 23, 2026AZII · Walk-around20OOSOAK SERVICES LLC 3449554ZP89922/CA
Feb 4, 2026CAV · Vehicle-only5OAK SERVICES LLC 3449554ZP81249/CA
Dec 22, 2025PAII · Walk-around3OAK SERVICES LLC 3449554ZP81249/CA
Nov 17, 2025PAIII · Driver-only1OAK SERVICES LLC 3449554ZP81249/CA
Nov 7, 2024NVIII · Driver-only0UNITED PIPE & STEEL CORP 2081703264124/IN
May 21, 2024CAI · Full0UNITED PIPE & STEEL CORP 2081703264124/IN
Feb 7, 2024CAV · Vehicle-only0UNITED PIPE & STEEL CORP 2081703264124/IN
Nov 16, 2023NVII · Walk-around0UNITED PIPE & STEEL CORP 2081703264124/IN
Oct 10, 2023USI · Full2OOSUNITED PIPE & STEEL CORP 2081703264124/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
OAK SERVICES LLC3449554Nov 17, 2025Aug 24, 20266CA
UNITED PIPE & STEEL CORP208170Oct 10, 2023Nov 7, 20245TX
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.
ZP89922CA1OAK SERVICES LLCFeb 23, 2026Aug 24, 20263
ZP81249CAOAK SERVICES LLCNov 17, 2025Feb 4, 20263
3264124IN1UNITED PIPE & STEEL CORPOct 10, 2023Nov 7, 20245
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 30, 2026