Equipment unit · VIN-decoded · NHTSA vPIC

2023 Western Star 57X Chassis

5KJJBZDRXPLUL6653 · Truck-Tractor · TRUCK
Carriers run under4
19 mo
Inspections8
all-time
OOS inspections1
of 8
First seenApr 8, 2024
WI
Last seenNov 24, 2025
NM
Inspected under 4 different carriers in 19 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
5KJJBZDRXPLUL6653
Make
Western Star
Model
57X Chassis
Model year
2023
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 28, 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
5KJ

Deterministic · VIN positions 1–3.

Vehicle descriptor section
JBZDR

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1993 or 2023

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

North American serial sequence
UL6653

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
WESTERN STAR

Prefix basis · 313 decoded VINs at 100.0% prefix purity.

Model
57X Chassis

Prefix basis · 313 decoded VINs at 100.0% 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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
WESTERN STAR

Observed directly for this VIN via NHTSA vPIC.

Observed model
57X Chassis

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.

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 · Apr 8, 2024 – Nov 24, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 24, 2025NMII · Walk-around0ARSLON LLC 4023446P1245558/IL
Nov 13, 2025TNIII · Driver-only0ARSLON LLC 4023446P1245558/IL
Apr 8, 2025NJI · Full2OOSFATBOY LOGISTICS INC 3331684P1245558/IL
Jan 13, 2025INIII · Driver-only1BJJ ENTERPRISES LLC 1521064P1245558/IL
Oct 22, 2024WYIII · Driver-only0ROBERTSON TRUCKS LLC 3666726P1245558/IL
Oct 12, 2024WIII · Walk-around0ROBERTSON TRUCKS LLC 3666726P1245558/IL
Jul 11, 2024MIIII · Driver-only1BJJ ENTERPRISES LLC 1521064P1245558/IL
Apr 8, 2024WIII · Walk-around0ROBERTSON TRUCKS LLC 3666726XTR908799/IL
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ARSLON LLC4023446Nov 13, 2025Nov 24, 20252IL
FATBOY LOGISTICS INC3331684Apr 8, 2025Apr 8, 20251IL
BJJ ENTERPRISES LLC1521064Jul 11, 2024Jan 13, 20252MO
ROBERTSON TRUCKS LLC3666726Apr 8, 2024Oct 22, 20243MO
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.
P1245558ILARSLON LLCNov 13, 2025Nov 24, 20252
P1245558ILFATBOY LOGISTICS INCApr 8, 2025Apr 8, 20251
P1245558IL1BJJ ENTERPRISES LLCJul 11, 2024Jan 13, 20252
P1245558ILROBERTSON TRUCKS LLCOct 12, 2024Oct 22, 20242
XTR908799ILROBERTSON TRUCKS LLCApr 8, 2024Apr 8, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026