Equipment unit · VIN-decoded · NHTSA vPIC

2013 Kenworth T6 Series

3WKAD49XXDF842417 · Truck-Tractor · TRUCK
Carriers run under2
18 mo
Inspections11
all-time
OOS inspections8
of 11
First seenJan 13, 2025
TX
Last seenJul 23, 2026
US
Inspected under 2 different carriers in 18 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
3WKAD49XXDF842417
Make
Kenworth
Model
T6 Series
Model year
2013
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 18, 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
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1983 or 2013

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

North American serial sequence
842417

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
2013

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

  • 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 · Jan 13, 2025 – Jul 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 23, 2026USIII · Driver-only1TRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
May 29, 2026USII · Walk-around10OOSTRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
Dec 19, 2025USI · Full8OOSTRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
Oct 22, 2025USI · Full8OOSTRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
Sep 17, 2025USI · Full6OOSTRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
Jul 21, 2025USI · Full12TRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
Jul 7, 2025USI · Full17OOSTRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
Apr 25, 2025TXII · Walk-around12OOSTRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
Apr 25, 2025USI · Full7TRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
Mar 19, 2025USI · Full6OOSTRANSPORTES JL SIERRA SA DE CV 408800438AZ2N/MX
Jan 13, 2025TXI · Full12OOSAUTO EXPRESS SIERRA LLC 328491338AZ2N/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRANSPORTES JL SIERRA SA DE CV4088004Mar 19, 2025Jul 23, 202610NL
AUTO EXPRESS SIERRA LLC3284913Jan 13, 2025Jan 13, 20251TX
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.
38AZ2NMX1TRANSPORTES JL SIERRA SA DE CVMar 19, 2025Jul 23, 202610
38AZ2NMXAUTO EXPRESS SIERRA LLCJan 13, 2025Jan 13, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026