Equipment unit · VIN-decoded · NHTSA vPIC

2015 Kenworth T6 Series

1XKAD49X8FJ450972 · Truck-Tractor · TRUCK
T600
Carriers run under2
27 mo
Inspections18
all-time
OOS inspections6
of 18
First seenJul 18, 2023
TX
Last seenOct 28, 2025
US
Inspected under 2 different carriers in 27 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
1XKAD49X8FJ450972
Make
Kenworth
Model
T6 Series
Model year
2015
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 14, 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
8 · valid

Deterministic · position 9; calculated value 8.

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
450972

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
2015

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T6 Series

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 · Jul 18, 2023 – Oct 28, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 28, 2025USII · Walk-around1OOSROBERTO ROBLES SAENZ 91543970BC7M/MX
Oct 28, 2025USI · Full1ROBERTO ROBLES SAENZ 91543970BC7M/MX
Oct 28, 2025USI · Full6OOSROBERTO ROBLES SAENZ 91543970BC7M/MX
Oct 15, 2025USI · Full1OOSROBERTO ROBLES SAENZ 91543970BC7M/MX
Sep 22, 2025USI · Full0ROBERTO ROBLES SAENZ 91543970BC7M/MX
Sep 13, 2025USI · Full0ROBERTO ROBLES SAENZ 91543970BC7M/MX
Jul 1, 2025USI · Full7OOSR ROBLES TRUCKING LLC 2562301N64607/TX
Apr 17, 2025USI · Full2R ROBLES TRUCKING LLC 2562301N64607/TX
Mar 20, 2025USI · Full0R ROBLES TRUCKING LLC 2562301N64607/TX
Jan 7, 2025TXII · Walk-around6R ROBLES TRUCKING LLC 2562301N64607/TX
Oct 23, 2024USI · Full0R ROBLES TRUCKING LLC 2562301N64607/TX
Oct 18, 2024USII · Walk-around0R ROBLES TRUCKING LLC 2562301N64607/TX
Oct 9, 2024TXII · Walk-around0R ROBLES TRUCKING LLC 2562301N64607/TX
Sep 12, 2024TXII · Walk-around7R ROBLES TRUCKING LLC 2562301N64607/TX
May 3, 2024USII · Walk-around0ROBERTO ROBLES SAENZ 915439VY0452B/MX
Mar 6, 2024USI · Full4OOSROBERTO ROBLES SAENZ 915439VY0452B/MX
Jan 19, 2024USII · Walk-around0ROBERTO ROBLES SAENZ 915439VY0452B/MX
Jul 18, 2023TXII · Walk-around4OOSR ROBLES TRUCKING LLC 2562301N18585/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROBERTO ROBLES SAENZ915439Jan 19, 2024Oct 28, 20259TA
R ROBLES TRUCKING LLC256230Jul 18, 2023Jul 1, 20259TX
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.
70BC7MMXROBERTO ROBLES SAENZSep 13, 2025Oct 28, 20256
1N64607TXR ROBLES TRUCKING LLCSep 12, 2024Jul 1, 20258
VY0452BMXROBERTO ROBLES SAENZJan 19, 2024May 3, 20243
1N18585TXR ROBLES TRUCKING LLCJul 18, 2023Jul 18, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026