Equipment unit · VIN-decoded · NHTSA vPIC

1994 Kenworth T600

1NKALB9X7RS638611 · Truck · INCOMPLETE VEHICLE
Carriers run under2
17 mo
Inspections5
all-time
OOS inspections2
of 5
First seenJan 28, 2025
IN
Last seenJun 29, 2026
WI
Inspected under 2 different carriers in 17 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
1NKALB9X7RS638611
Make
Kenworth
Model
T600
Model year
1994
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 6, 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
1NK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ALB9X

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
638611

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

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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 28, 2025 – Jun 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 29, 2026WIII · Walk-around9OOSMSL EXPRESS INC 4168399DF67HI/FL
Jun 29, 2026WIII · Walk-around9OOSMSL EXPRESS INC 4168399DF67HI/FL
Sep 7, 2025WIIII · Driver-only12AVL TRANSPORT INC 374345342642PF/NY
Feb 4, 2025OHII · Walk-around5AVL TRANSPORT INC 374345342642PF/NY
Jan 28, 2025INIII · Driver-only5AVL TRANSPORT INC 374345342642PF/NY
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MSL EXPRESS INC4168399Jun 29, 2026Jun 29, 20262IL
AVL TRANSPORT INC3743453Jan 28, 2025Sep 7, 20253NY
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.
DF67HIFL1MSL EXPRESS INCJun 29, 2026Jun 29, 20262
42642PFNYAVL TRANSPORT INCJan 28, 2025Sep 7, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 6, 2026