Equipment unit · VIN-decoded · NHTSA vPIC

2023 Western Star 49X Chassis

5KJNBWD17PLUG9194 · Truck-Tractor · TRUCK
Carriers run under2
27 mo
Inspections3
all-time
OOS inspections0
of 3
First seenNov 15, 2023
WY
Last seenFeb 23, 2026
UT
Inspected under 2 different carriers in 27 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
5KJNBWD17PLUG9194
Make
Western Star
Model
49X 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
Aug 9, 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
NBWD1

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
UG9194

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 · 139 decoded VINs at 98.6% prefix purity.

Model
49X Chassis

Prefix basis · 139 decoded VINs at 98.6% 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
49X 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 · Nov 15, 2023 – Feb 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 23, 2026UTIII · Driver-only1MONARCH HEAVY HAUL CORP 2943108ZP39474/CA
Sep 12, 2025CAI · Full0MONARCH HEAVY HAUL CORP 2943108ZP39474/CA
Nov 15, 2023WYII · Walk-around1CORTHELL TRANSPORTATION LLC 1997208A17492/WY
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MONARCH HEAVY HAUL CORP2943108Sep 12, 2025Feb 23, 20262CA
CORTHELL TRANSPORTATION LLC1997208Nov 15, 2023Nov 15, 20231WY
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.
ZP39474CAMONARCH HEAVY HAUL CORPSep 12, 2025Feb 23, 20262
A17492WYCORTHELL TRANSPORTATION LLCNov 15, 2023Nov 15, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026