Equipment unit · VIN-decoded · NHTSA vPIC

2021 Western Star 4700

5KKMAVDV7MLMT3528 · Truck · INCOMPLETE VEHICLE
Carriers run under2
12 mo
Inspections9
all-time
OOS inspections2
of 9
First seenApr 2, 2024
AL
Last seenApr 29, 2025
AL
Inspected under 2 different carriers in 12 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
5KKMAVDV7MLMT3528
Make
Western Star
Model
4700
Model year
2021
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
MAVDV

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1991 or 2021

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

North American serial sequence
MT3528

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 · 419 decoded VINs at 100.0% prefix purity.

Model
4700

Prefix basis · 419 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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
WESTERN STAR

Observed directly for this VIN via NHTSA vPIC.

Observed model
4700

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 · Apr 2, 2024 – Apr 29, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 29, 2025ALII · Walk-around2J & K MATERIALS AND TRUCKING INC 158171124A0A6A/AL
Jan 31, 2025ALII · Walk-around5OOSJ & K MATERIALS AND TRUCKING INC 158171124A0A6A/AL
Sep 11, 2024ALIII · Driver-only0CHESTNUT CREEK MATERIALS AND TRANSPORTATION 382778424A0A6A/AL
Sep 4, 2024ALIII · Driver-only0CHESTNUT CREEK MATERIALS AND TRANSPORTATION 382778424A0A6A/AL
Aug 19, 2024ALIII · Driver-only0CHESTNUT CREEK MATERIALS AND TRANSPORTATION 382778424A0A6A/AL
Jun 6, 2024ALII · Walk-around3CHESTNUT CREEK MATERIALS AND TRANSPORTATION 382778424A0A6A/AL
May 30, 2024ALIII · Driver-only0CHESTNUT CREEK MATERIALS AND TRANSPORTATION 382778424A0A6A/AL
Apr 15, 2024ALII · Walk-around1CHESTNUT CREEK MATERIALS AND TRANSPORTATION 382778424A0A6A/AL
Apr 2, 2024ALII · Walk-around4OOSCHESTNUT CREEK MATERIALS AND TRANSPORTATION 382778424A0A6A/AL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
J & K MATERIALS AND TRUCKING INC1581711Jan 31, 2025Apr 29, 20252AL
CHESTNUT CREEK MATERIALS AND TRANSPORTATION3827784Apr 2, 2024Sep 11, 20247AL
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.
24A0A6AALJ & K MATERIALS AND TRUCKING INCJan 31, 2025Apr 29, 20252
24A0A6AALCHESTNUT CREEK MATERIALS AND TRANSPORTATIONApr 2, 2024Sep 11, 20247
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026