Equipment unit · VIN-decoded · NHTSA vPIC

2012 Western Star 4900

5KKHAEDR7CPBJ4001 · Truck · INCOMPLETE VEHICLE
Carriers run under1
22 mo
Inspections10
all-time
OOS inspections3
of 10
First seenAug 22, 2023
TX
Last seenJun 16, 2025
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
5KKHAEDR7CPBJ4001
Make
Western Star
Model
4900
Model year
2012
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 18, 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
5KK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
HAEDR

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1982 or 2012

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

North American serial sequence
BJ4001

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 · 4 decoded VINs at 100.0% prefix purity.

Model
4900

Prefix basis · 4 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
2012

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

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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 · Aug 22, 2023 – Jun 16, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 16, 2025TXI · Full3ROBERTSON POOLS INC 1302051VSH4996/TX
May 21, 2025TXI · Full5OOSROBERTSON POOLS INC 1302051VSH4996/TX
Mar 4, 2025TXI · Full2ROBERTSON POOLS INC 1302051VSH4996/TX
Feb 17, 2025TXII · Walk-around3OOSROBERTSON POOLS INC 1302051VSH4996/TX
Jan 7, 2025TXI · Full4ROBERTSON POOLS INC 1302051VSH496/TX
Aug 15, 2024TXII · Walk-around1ROBERTSON POOLS INC 1302051BB63799/TX
Mar 27, 2024TXII · Walk-around1ROBERTSON POOLS INC 1302051BB63790/TX
Oct 2, 2023TXII · Walk-around2ROBERTSON POOLS INC 1302051BB3799/TX
Sep 6, 2023TXI · Full1ROBERTSON POOLS INC 1302051BB63799/TX
Aug 22, 2023TXII · Walk-around6OOSROBERTSON POOLS INC 1302051BB63799/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROBERTSON POOLS INC1302051Aug 22, 2023Jun 16, 202510TX
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.
VSH4996TXROBERTSON POOLS INCFeb 17, 2025Jun 16, 20254
VSH496TXROBERTSON POOLS INCJan 7, 2025Jan 7, 20251
BB63799TXROBERTSON POOLS INCAug 22, 2023Aug 15, 20243
BB63790TXROBERTSON POOLS INCMar 27, 2024Mar 27, 20241
BB3799TXROBERTSON POOLS INCOct 2, 2023Oct 2, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026