Equipment unit · VIN-decoded · NHTSA vPIC

2007 Western Star 4900

5KJJAEDE87PY57627 · Truck-Tractor · TRUCK
Carriers run under2
30 mo
Inspections4
all-time
OOS inspections1
of 4
First seenSep 12, 2023
MS
Last seenMar 3, 2026
IA
Inspected under 2 different carriers in 30 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
5KJJAEDE87PY57627
Make
Western Star
Model
4900
Model year
2007
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 17, 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
JAEDE

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
2007 or 2037

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

North American serial sequence
Y57627

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 · 8 decoded VINs at 100.0% prefix purity.

Model
4900

Prefix basis · 8 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
2007

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 · Sep 12, 2023 – Mar 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 3, 2026IAII · Walk-around3OOSSPOERL TRUCKING INC 54334096569Z/WI
May 10, 2024OKIII · Driver-only0STEIN & SONS LLC 303490234KS1A/MO
Apr 3, 2024ILIII · Driver-only0STEIN & SONS LLC 303490234KS1A/MO
Sep 12, 2023MSII · Walk-around0STEIN & SONS LLC 303490234KS1A/MO
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SPOERL TRUCKING INC543340Mar 3, 2026Mar 3, 20261WI
STEIN & SONS LLC3034902Sep 12, 2023May 10, 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.
96569ZWISPOERL TRUCKING INCMar 3, 2026Mar 3, 20261
34KS1AMOSTEIN & SONS LLCSep 12, 2023May 10, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 17, 2026