Equipment unit · VIN-decoded · NHTSA vPIC

1987 Kenworth T600

1XKAD49X2HJ150251 · Truck-Tractor · TRUCK
T600
Carriers run under2
21 mo
Inspections4
all-time
OOS inspections2
of 4
First seenJan 28, 2024
TX
Last seenOct 17, 2025
CA
Inspected under 2 different carriers in 21 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
1XKAD49X2HJ150251
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
Jul 10, 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
1XK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AD49X

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

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
150251

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
KENWORTH

Prefix basis · 5,142 decoded VINs at 90.1% prefix purity.

Model
T6 Series

Prefix basis · 5,142 decoded VINs at 90.1% prefix purity.

Model line
T600

Sourced label · prefix basis 5,142 decoded VINs at 90.1% prefix purity.

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
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

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jan 28, 2024 – Oct 17, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 17, 2025CAII · Walk-around3OOSSANDOVAL GUILLEN TRUCKING LLC 1199755ZP25893/CA
Apr 3, 2025FLIII · Driver-only2SANDOVAL GUILLEN TRUCKING LLC 1199755ZP25893/CA
Jun 24, 2024AZII · Walk-around2OOSEXPO TRANSPORTATION INC 2353070YP48468/CA
Jan 28, 2024TXIII · Driver-only2SANDOVAL GUILLEN TRUCKING LLC 119975535A301687/NM
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SANDOVAL GUILLEN TRUCKING LLC1199755Jan 28, 2024Oct 17, 20253TX
EXPO TRANSPORTATION INC2353070Jun 24, 2024Jun 24, 20241CA
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.
ZP25893CASANDOVAL GUILLEN TRUCKING LLCApr 3, 2025Oct 17, 20252
YP48468CAEXPO TRANSPORTATION INCJun 24, 2024Jun 24, 20241
35A301687NMSANDOVAL GUILLEN TRUCKING LLCJan 28, 2024Jan 28, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 10, 2026