Equipment unit · VIN-decoded · NHTSA vPIC

1987 Kenworth T600

3WKAD49X3HF870758 · Truck-Tractor · TRUCK
Carriers run under2
31 mo
Inspections14
all-time
OOS inspections4
of 14
First seenJul 11, 2023
CA
Last seenFeb 11, 2026
CA
Inspected under 2 different carriers in 31 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
3WKAD49X3HF870758
Make
Kenworth
Model
T600
Model year
1987
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 16, 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
3WK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AD49X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1987 or 2017

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

North American serial sequence
870758

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
1987

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T600

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 11, 2023 – Feb 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 11, 2026CAII · Walk-around1JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Dec 28, 2025CAIII · Driver-only0JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Jul 20, 2025CAII · Walk-around5OOSJUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Jul 2, 2025CAIII · Driver-only0JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Mar 28, 2025CAI · Full5OOSJUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Feb 22, 2025CAIII · Driver-only3JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Feb 12, 2025USIII · Driver-only0JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Oct 24, 2024CAI · Full0JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Jan 21, 2024CAII · Walk-around1OOSJUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Oct 24, 2023CAIII · Driver-only1JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Oct 10, 2023USIII · Driver-only0JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Oct 4, 2023CAIII · Driver-only0JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
Aug 19, 2023CAIII · Driver-only2JUAN MARTIN RAMIREZ AMES 36429289F36413/CA
Jul 11, 2023CAI · Full1OOSJUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR 2648759F36413/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JR264875Jul 11, 2023Feb 11, 202613BN
JUAN MARTIN RAMIREZ AMES3642928Aug 19, 2023Aug 19, 20231CA
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.
9F36413CAJUAN M RAMIREZ AMES AND CARLOS FERNANDO MENDEZ JRJul 11, 2023Feb 11, 202613
9F36413CAJUAN MARTIN RAMIREZ AMESAug 19, 2023Aug 19, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026