Equipment unit · VIN-decoded · NHTSA vPIC

2012 Kenworth T6 Series

1XKAD49X3CJ305592 · Truck-Tractor · TRUCK
T600
Carriers run under2
31 mo
Inspections22
all-time
OOS inspections3
of 22
First seenOct 27, 2023
NM
Last seenMay 14, 2026
US
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
1XKAD49X3CJ305592
Make
Kenworth
Model
T6 Series
Model year
2012
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
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1982 or 2012

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

North American serial sequence
305592

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
2012

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 · Oct 27, 2023 – May 14, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 14, 2026USIII · Driver-only0SILVIA NAJERA BENCOMO 285600981AX7L/MX
Apr 29, 2026USI · Full1SILVIA NAJERA BENCOMO 285600981AX7L/MX
Apr 13, 2026USIII · Driver-only0SILVIA NAJERA BENCOMO 285600981AX7L/MX
Feb 19, 2026USI · Full0SILVIA NAJERA BENCOMO 285600981AX7L/MX
Jan 19, 2026USIII · Driver-only0SILVIA NAJERA BENCOMO 285600981AX76L/CI
Dec 19, 2025USI · Full1SILVIA NAJERA BENCOMO 285600981AX7L/MX
Oct 2, 2025NMIII · Driver-only0SILVIA NAJERA BENCOMO 285600981AX7L/MX
Sep 22, 2025USI · Full2SILVIA NAJERA BENCOMO 285600981AX7L/MX
Sep 8, 2025NMII · Walk-around1SILVIA NAJERA BENCOMO 285600981AX7L/MX
Jul 29, 2025USI · Full3TOMAS OLIVAS CALDERON 119833381AX7L/MX
Jun 6, 2025NMII · Walk-around0SILVIA NAJERA BENCOMO 2856009EF76319/MX
May 12, 2025NMIII · Driver-only0SILVIA NAJERA BENCOMO 285600981AX7K/MX
Mar 26, 2025USI · Full0SILVIA NAJERA BENCOMO 285600981AX7L/MX
Aug 23, 2024NMII · Walk-around0SILVIA NAJERA BENCOMO 285600981AX7L/MX
Jul 22, 2024NMI · Full2OOSSILVIA NAJERA BENCOMO 285600981AX7L/CH
Jun 20, 2024NMIII · Driver-only0SILVIA NAJERA BENCOMO 285600981AX7L/MX
Jun 17, 2024NMI · Full3OOSSILVIA NAJERA BENCOMO 285600981AX7L/CH
May 28, 2024NMIII · Driver-only0SILVIA NAJERA BENCOMO 285600981AX7L/CH
Jan 26, 2024TXI · Full3SILVIA NAJERA BENCOMO 285600981AX7L/CI
Oct 30, 2023NMI · Full4OOSSILVIA NAJERA BENCOMO 285600981AX7L/CH
Oct 27, 2023NMII · Walk-around0SILVIA NAJERA BENCOMO 285600981AX7L/MX
Oct 27, 2023NMII · Walk-around0SILVIA NAJERA BENCOMO 285600981AX7L/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SILVIA NAJERA BENCOMO2856009Oct 27, 2023May 14, 202621CI
TOMAS OLIVAS CALDERON1198333Jul 29, 2025Jul 29, 20251CI
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.
81AX7LMX1SILVIA NAJERA BENCOMOOct 27, 2023May 14, 202613
81AX76LCISILVIA NAJERA BENCOMOJan 19, 2026Jan 19, 20261
81AX7LMXTOMAS OLIVAS CALDERONJul 29, 2025Jul 29, 20251
EF76319MXSILVIA NAJERA BENCOMOJun 6, 2025Jun 6, 20251
81AX7KMXSILVIA NAJERA BENCOMOMay 12, 2025May 12, 20251
81AX7LCHSILVIA NAJERA BENCOMOOct 30, 2023Jul 22, 20244
81AX7LCISILVIA NAJERA BENCOMOJan 26, 2024Jan 26, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026