Equipment unit · VIN-decoded · NHTSA vPIC

2025 Western Star 49X Chassis

5KJJBWD14SLVY6677 · Truck-Tractor · TRUCK
Carriers run under1
19 mo
Inspections4
all-time
OOS inspections1
of 4
First seenOct 28, 2024
MA
Last seenMay 6, 2026
MA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
5KJJBWD14SLVY6677
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
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
JBWD1

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1995 or 2025

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

North American serial sequence
VY6677

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 · 377 decoded VINs at 97.9% prefix purity.

Model
49X Chassis

Prefix basis · 377 decoded VINs at 97.9% 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
2025

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 · Oct 28, 2024 – May 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 6, 2026MAI · Full2FIRST PETROLEUM MANAGEMENT LLC 25688221AF18Y APN/MA
May 4, 2026MAII · Walk-around9OOSFIRST PETROLEUM MANAGEMENT LLC 25688221AF18Y/MA
Dec 22, 2025RIIII · Driver-only4FIRST PETROLEUM MANAGEMENT LLC 25688221AF18Y/MA
Oct 28, 2024MAII · Walk-around8FIRST PETROLEUM MANAGEMENT LLC 25688221AF18Y/MA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FIRST PETROLEUM MANAGEMENT LLC2568822Oct 28, 2024May 6, 20264MA
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.
1AF18Y APNMAFIRST PETROLEUM MANAGEMENT LLCMay 6, 2026May 6, 20261
1AF18YMAFIRST PETROLEUM MANAGEMENT LLCOct 28, 2024May 4, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 17, 2026