Equipment unit · VIN-decoded · NHTSA vPIC

1994 Kenworth T600

1XKADB9X3RS622621 · Truck-Tractor · TRUCK
Carriers run under2
22 mo
Inspections10
all-time
OOS inspections5
of 10
First seenFeb 22, 2024
TX
Last seenDec 11, 2025
TX
Inspected under 2 different carriers in 22 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
1XKADB9X3RS622621
Make
Kenworth
Model
T600
Model year
1994
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 19, 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
ADB9X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1994 or 2024

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

North American serial sequence
622621

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
1994

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 · Feb 22, 2024 – Dec 11, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 11, 2025TXII · Walk-around5OOSJ&J TRUCKING & BACKHOE SERVICES LLC 2884554DCX1999/TX
Nov 14, 2025TXI · Full1J GARZA CARRIERS LLC 4210498DCX1999/TX
Nov 14, 2025TXI · Full8OOSJ&J TRUCKING & BACKHOE SERVICES LLC 2884554DCX1999/TX
May 16, 2025TXII · Walk-around3J&J TRUCKING & BACKHOE SERVICES LLC 2884554DCX1999/TX
Mar 11, 2025TXII · Walk-around9J&J TRUCKING & BACKHOE SERVICES LLC 2884554DCX1999/TX
Oct 22, 2024TXII · Walk-around12OOSJ&J TRUCKING & BACKHOE SERVICES LLC 288455479S800M/TX
Aug 13, 2024TXI · Full5OOSJ&J TRUCKING & BACKHOE SERVICES LLC 288455481P672M/TX
May 23, 2024TXIII · Driver-only0J&J TRUCKING & BACKHOE SERVICES LLC 2884554DCX1999/TX
May 15, 2024TXII · Walk-around4OOSJ&J TRUCKING & BACKHOE SERVICES LLC 2884554DCX1999/TX
Feb 22, 2024TXII · Walk-around0J&J TRUCKING & BACKHOE SERVICES LLC 2884554DCX1999/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
J&J TRUCKING & BACKHOE SERVICES LLC2884554Feb 22, 2024Dec 11, 20259TX
J GARZA CARRIERS LLC4210498Nov 14, 2025Nov 14, 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.
DCX1999TXJ&J TRUCKING & BACKHOE SERVICES LLCFeb 22, 2024Dec 11, 20257
DCX1999TXJ GARZA CARRIERS LLCNov 14, 2025Nov 14, 20251
79S800MTXJ&J TRUCKING & BACKHOE SERVICES LLCOct 22, 2024Oct 22, 20241
81P672MTXJ&J TRUCKING & BACKHOE SERVICES LLCAug 13, 2024Aug 13, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026