Equipment unit · VIN-decoded · NHTSA vPIC

2015 Western Star 4900

5KKXAC004FPGN7883 · Incomplete - Glider · INCOMPLETE VEHICLE
Carriers run under2
22 mo
Inspections10
all-time
OOS inspections2
of 10
First seenJul 24, 2024
AL
Last seenMay 7, 2026
AL
Inspected under 2 different carriers in 22 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
5KKXAC004FPGN7883
Make
Western Star
Model
4900
Model year
2015
Body class
Incomplete - Glider
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)
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
XAC00

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1985 or 2015

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

North American serial sequence
GN7883

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 · 101 decoded VINs at 100.0% prefix purity.

Model
4900

Prefix basis · 101 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
2015

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
Incomplete - Glider

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)

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 24, 2024 – May 7, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 7, 2026ALII · Walk-around3OOSSUMMERFORD TRUCK LINE INC 978791230534/AL
Sep 29, 2025ALII · Walk-around2SUMMERFORD TRUCK LINE INC 978791214834/AL
Sep 9, 2025ALII · Walk-around6SUMMERFORD TRUCK LINE INC 978791214834/AL
Jun 24, 2025ALII · Walk-around5SUMMERFORD TRUCK LINE INC 978791214834/AL
Jun 24, 2025GAIII · Driver-only0SUMMERFORD TRUCK LINE INC 978791214834/AL
Jun 18, 2025GAIII · Driver-only1SUMMERFORD TRUCK LINE INC 978791214834/AL
May 27, 2025GAIII · Driver-only1SUMMERFORD TRUCK LINE INC 978791214834/AL
Apr 9, 2025ALII · Walk-around8OOSSUMMERFORD TRUCK LINE INC 978791214834/AL
Dec 2, 2024GAI · Full6SUMMERFORD TRUCK LINE INC 978791214834/AL
Jul 24, 2024ALII · Walk-around7MCMILLAN LOGGING INC 983255MIN17D/FL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SUMMERFORD TRUCK LINE INC97879Dec 2, 2024May 7, 20269AL
MCMILLAN LOGGING INC983255Jul 24, 2024Jul 24, 20241FL
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.
1230534ALSUMMERFORD TRUCK LINE INCMay 7, 2026May 7, 20261
1214834ALSUMMERFORD TRUCK LINE INCDec 2, 2024Sep 29, 20258
MIN17DFLMCMILLAN LOGGING INCJul 24, 2024Jul 24, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026