Equipment unit · VIN-decoded · NHTSA vPIC

1999 Kenworth T600

1XKADB9XXXR835537 · Truck-Tractor · TRUCK
Carriers run under2
36 mo
Inspections25
all-time
OOS inspections19
of 25
First seenJul 20, 2023
TX
Last seenJul 24, 2026
TX
Inspected under 2 different carriers in 36 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
1XKADB9XXXR835537
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 14, 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
X · valid

Deterministic · position 9; calculated value X.

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
835537

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 · Jul 20, 2023 – Jul 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 24, 2026TXIII · Driver-only3ALBERTO VILLARREAL 111854043W413W/TX
Jul 4, 2026TXII · Walk-around9OOSALBERTO VILLARREAL 111854062X390W/TX
May 5, 2026TXI · Full17OOSALBERTO VILLARREAL 111854074AV9F/GJ
Apr 23, 2026TXII · Walk-around8OOSALBERTO VILLARREAL 111854012Z299W/TX
Apr 8, 2026TXII · Walk-around5OOSALBERTO VILLARREAL 111854059Z280W/TX
Mar 21, 2026TXII · Walk-around17OOSALBERTO VILLARREAL 111854040Z261W/TX
Dec 11, 2025TXI · Full9OOSALBERTO VILLARREAL 111854074AV9F/MX
Nov 15, 2025TXII · Walk-around7OOSALBERTO VILLARREAL 111854074AV9F/MX
Nov 7, 2025TXIII · Driver-only3OOSALBERTO VILLARREAL 111854074AV9F/MX
Oct 22, 2025TXII · Walk-around15OOSAUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/TA
Jul 17, 2025TXIII · Driver-only4AUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
Jul 10, 2025TXIII · Driver-only4OOSAUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
Jul 9, 2025TXI · Full18OOSAUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
Jun 25, 2025TXII · Walk-around5OOSAUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
May 21, 2025TXII · Walk-around14OOSAUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
May 20, 2025TXII · Walk-around20OOSAUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/DF
Oct 22, 2024USI · Full8OOSAUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
Sep 17, 2024TXII · Walk-around4OOSAUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
Jul 17, 2024TXI · Full6AUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
Jun 29, 2024TXII · Walk-around2AUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
Jun 12, 2024TXI · Full9AUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
Jun 6, 2024USII · Walk-around2AUTOTRANSPORTES MOJEMA SA DE CV 344508174AV9F/MX
Feb 4, 2024TXII · Walk-around7OOSALBERTO VILLARREAL 111854074AV9F/MX
Oct 23, 2023TXI · Full7OOSALBERTO VILLARREAL 111854074AV9F/MX
Jul 20, 2023TXII · Walk-around14OOSALBERTO VILLARREAL 1118540518DT2/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ALBERTO VILLARREAL1118540Jul 20, 2023Jul 24, 202612TA
AUTOTRANSPORTES MOJEMA SA DE CV3445081Jun 6, 2024Oct 22, 202513TA
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.
43W413WTX1ALBERTO VILLARREALJul 24, 2026Jul 24, 20261
62X390WTX1ALBERTO VILLARREALJul 4, 2026Jul 4, 20261
74AV9FGJALBERTO VILLARREALMay 5, 2026May 5, 20261
12Z299WTXALBERTO VILLARREALApr 23, 2026Apr 23, 20261
59Z280WTXALBERTO VILLARREALApr 8, 2026Apr 8, 20261
40Z261WTXALBERTO VILLARREALMar 21, 2026Mar 21, 20261
74AV9FMXALBERTO VILLARREALOct 23, 2023Dec 11, 20255
74AV9FTAAUTOTRANSPORTES MOJEMA SA DE CVOct 22, 2025Oct 22, 20251
74AV9FMXAUTOTRANSPORTES MOJEMA SA DE CVJun 6, 2024Jul 17, 202511
74AV9FDFAUTOTRANSPORTES MOJEMA SA DE CVMay 20, 2025May 20, 20251
518DT2MXALBERTO VILLARREALJul 20, 2023Jul 20, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026