Equipment unit · VIN-decoded · NHTSA vPIC

2025 Western star 49X Chassis

5KJNBWFG9SPVW3598 · Truck-Tractor · TRUCK
Carriers run under2
8 mo
Inspections4
all-time
OOS inspections0
of 4
First seen08/20/2025
AR
Last seen04/14/2026
AZ
Inspected under 2 different carriers in 8 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
5KJNBWFG9SPVW3598
Make
Western star
Model
49X Chassis
Model year
2025
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
07/17/2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
02

Inspection history

Every roadside inspection of this VIN, newest first · 08/20/2025 – 04/14/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
04/14/2026AZI · Full3—FRONTIER HEAVY HAUL & SUPPORT INC 973732PR52772/SD
03/09/2026MSII · Walk-around0—FRONTIER HEAVY HAUL & SUPPORT INC 973732PR52772/SD
09/15/2025ARII · Walk-around0—ACE DORAN LLC 81361PR52772/SD
08/20/2025ARIII · Driver-only1—ACE DORAN LLC 81361PR52772/SD
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FRONTIER HEAVY HAUL & SUPPORT INC97373203/09/202604/14/20262ND
ACE DORAN LLC8136108/20/202509/15/20252OH
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.
PR52772SD—FRONTIER HEAVY HAUL & SUPPORT INC03/09/2026 → 04/14/20262
PR52772SD—ACE DORAN LLC08/20/2025 → 09/15/20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/17/2026