Equipment unit · VIN-decoded · NHTSA vPIC

1999 Kenworth T800

1XKDDB9X4XR815572 · Truck-Tractor · TRUCK
Carriers run under2
27 mo
Inspections6
all-time
OOS inspections3
of 6
First seenJul 17, 2023
WA
Last seenOct 3, 2025
WA
Inspected under 2 different carriers in 27 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
1XKDDB9X4XR815572
Make
Kenworth
Model
T800
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 24, 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
DDB9X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
815572

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
T800

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 17, 2023 – Oct 3, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 3, 2025WAIII · Driver-only2GLENDA MARTINEZ 4309463D13626H/WA
Sep 2, 2025WAII · Walk-around1OOSGLENDA MARTINEZ 4309463D13626H/WA
Jul 1, 2025WAI · Full8OOSGLENDA MARTINEZ 4309463D13626H/WA
Aug 21, 2024WAIII · Driver-only3JOSEFA MARTINEZ 3932746D22152C/WA
Jul 22, 2024WAIII · Driver-only1JOSEFA MARTINEZ 3932746DD22152C/WA
Jul 17, 2023WAII · Walk-around4OOSJOSEFA MARTINEZ 3932746D22152C/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GLENDA MARTINEZ4309463Jul 1, 2025Oct 3, 20253WA
JOSEFA MARTINEZ3932746Jul 17, 2023Aug 21, 20243WA
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.
D13626HWAGLENDA MARTINEZJul 1, 2025Oct 3, 20253
D22152CWAJOSEFA MARTINEZJul 17, 2023Aug 21, 20242
DD22152CWAJOSEFA MARTINEZJul 22, 2024Jul 22, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026