Equipment unit · VIN-decoded · NHTSA vPIC

1999 Kenworth T600

1XKAD69X8XR831784 · Truck-Tractor · TRUCK
Carriers run under2
21 mo
Inspections5
all-time
OOS inspections0
of 5
First seenAug 26, 2023
NM
Last seenMay 29, 2025
NM
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
1XKAD69X8XR831784
Make
Kenworth
Model
T600
Model year
1999
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 28, 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
AD69X

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1999 or 2029

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

North American serial sequence
831784

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
1999

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 · Aug 26, 2023 – May 29, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
May 29, 2025NMIII · Driver-only0PEDRO SERANNO 986624IRM7303/NM
Dec 2, 2024TXIII · Driver-only0PEDRO SERANNO 986624IRM7303/NM
Nov 23, 2024NMII · Walk-around0PEDRO SERANNO 986624IRM7303/NM
May 30, 2024NMII · Walk-around1PEDRO SERANNO 986624TEMPXR831/NM
Aug 26, 2023NMII · Walk-around0UACL LOGISTICS LLC 412082301228/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PEDRO SERANNO986624May 30, 2024May 29, 20254NM
UACL LOGISTICS LLC41208Aug 26, 2023Aug 26, 20231MI
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.
IRM7303NMPEDRO SERANNONov 23, 2024May 29, 20253
TEMPXR831NMPEDRO SERANNOMay 30, 2024May 30, 20241
2301228INUACL LOGISTICS LLCAug 26, 2023Aug 26, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026