Equipment unit · VIN-decoded · NHTSA vPIC

1999 Kenworth T600

1XKADR9X7XR815111 · Truck-Tractor · TRUCK
Carriers run under2
13 mo
Inspections5
all-time
OOS inspections4
of 5
First seenJun 2, 2025
TX
Last seenJul 9, 2026
TX
Inspected under 2 different carriers in 13 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
1XKADR9X7XR815111
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
Jul 12, 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
ADR9X

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
815111

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 · Jun 2, 2025 – Jul 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 9, 2026TXII · Walk-around6R&A TRANSPORT SERVICES LLC 43905794390579/TX
Jul 1, 2026TXII · Walk-around37OOSR&A TRANSPORT SERVICES LLC 439057987P834N/TX
Mar 16, 2026TXII · Walk-around3OOSJR'S TRANSLINE LLC 2837626R816288/TX
Jan 28, 2026TXII · Walk-around8OOSJR'S TRANSLINE LLC 2837626R816288/TX
Jun 2, 2025TXII · Walk-around5OOSR&A TRANSPORT SERVICES LLC 43905791N27029/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
R&A TRANSPORT SERVICES LLC4390579Jun 2, 2025Jul 9, 20263TX
JR'S TRANSLINE LLC2837626Jan 28, 2026Mar 16, 20262TX
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.
4390579TX1R&A TRANSPORT SERVICES LLCJul 9, 2026Jul 9, 20261
87P834NTX1R&A TRANSPORT SERVICES LLCJul 1, 2026Jul 1, 20261
R816288TXJR'S TRANSLINE LLCJan 28, 2026Mar 16, 20262
1N27029TXR&A TRANSPORT SERVICES LLCJun 2, 2025Jun 2, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026