Equipment unit · VIN-decoded · NHTSA vPIC

2017 Western Star 4900

5KJNALD11HPJC4528 · Truck-Tractor · TRUCK
Carriers run under2
33 mo
Inspections13
all-time
OOS inspections1
of 13
First seenJul 20, 2023
PA
Last seenApr 21, 2026
MO
Inspected under 2 different carriers in 33 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
5KJNALD11HPJC4528
Make
Western Star
Model
4900
Model year
2017
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 16, 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
NALD1

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1987 or 2017

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

North American serial sequence
JC4528

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 · 56 decoded VINs at 100.0% prefix purity.

Model
4900

Prefix basis · 56 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
2017

Observed directly for this VIN via NHTSA vPIC.

Observed make
WESTERN STAR

Observed directly for this VIN via NHTSA vPIC.

Observed model
4900

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 · Jul 20, 2023 – Apr 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 21, 2026MOII · Walk-around0BOSS HEAVY HAUL LLC 829033949818/IN
Apr 16, 2026MOI · Full0BOSS HEAVY HAUL LLC 829033949818/IN
Apr 10, 2026MOII · Walk-around1BOSS HEAVY HAUL LLC 829033949818/IN
Feb 23, 2026MOII · Walk-around1BOSS HEAVY HAUL LLC 82903R628081/TX
Jan 22, 2026ARIII · Driver-only1BENNETT ON-SITE SERVICES LLC 2564902R784864/TX
Oct 6, 2025TNII · Walk-around1OOSBOSS HEAVY HAUL LLC 82903R784864/TX
Jul 23, 2025PAI · Full0BOSS HEAVY HAUL LLC 82903R784864/TX
May 23, 2025PAI · Full0BOSS HEAVY HAUL LLC 82903R759498/TX
Mar 29, 2024AZII · Walk-around0BOSS HEAVY HAUL LLC 82903R628081/AZ
Dec 20, 2023AZII · Walk-around2BOSS HEAVY HAUL LLC 82903R628081/TX
Dec 18, 2023AZII · Walk-around0BOSS HEAVY HAUL LLC 82903R628081/TX
Dec 15, 2023CAI · Full0BENNETT ON-SITE SERVICES LLC 2564902R628081/TX
Jul 20, 2023PAI · Full0BOSS HEAVY HAUL LLC 82903R628081/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BOSS HEAVY HAUL LLC82903Jul 20, 2023Apr 21, 202611GA
BENNETT ON-SITE SERVICES LLC2564902Dec 15, 2023Jan 22, 20262GA
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.
3949818INBOSS HEAVY HAUL LLCApr 10, 2026Apr 21, 20263
R628081TXBOSS HEAVY HAUL LLCJul 20, 2023Feb 23, 20264
R784864TXBENNETT ON-SITE SERVICES LLCJan 22, 2026Jan 22, 20261
R784864TXBOSS HEAVY HAUL LLCJul 23, 2025Oct 6, 20252
R759498TXBOSS HEAVY HAUL LLCMay 23, 2025May 23, 20251
R628081AZBOSS HEAVY HAUL LLCMar 29, 2024Mar 29, 20241
R628081TXBENNETT ON-SITE SERVICES LLCDec 15, 2023Dec 15, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026