Equipment unit · VIN-decoded · NHTSA vPIC

2020 Kenworth W990

1XK1D49X4LJ390944 · Truck-Tractor · TRUCK
Carriers run under1
30 mo
Inspections8
all-time
OOS inspections1
of 8
First seenSep 29, 2023
CA
Last seenMar 1, 2026
NM
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XK1D49X4LJ390944
Make
Kenworth
Model
W990
Model year
2020
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
1D49X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1990 or 2020

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

North American serial sequence
390944

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
2020

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
W990

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 · Sep 29, 2023 – Mar 1, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 1, 2026NMIII · Driver-only1BROCK EXPRESS INC 783723XP55022/CA
Feb 8, 2025TNIII · Driver-only0BROCK EXPRESS INC 783723XP555022/CA
Feb 7, 2025ARIII · Driver-only1BROCK EXPRESS INC 783723XP55022/CA
Jun 17, 2024OHIII · Driver-only3OOSBROCK EXPRESS INC 783723XP55022/CA
Apr 22, 2024NMIII · Driver-only1BROCK EXPRESS INC 783723XP55022/CA
Mar 20, 2024NMIII · Driver-only1BROCK EXPRESS INC 783723XP55022/CA
Oct 9, 2023KSIII · Driver-only2BROCK EXPRESS INC 783723XP55022/CA
Sep 29, 2023CAIII · Driver-only1BROCK EXPRESS INC 783723XP55022/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BROCK EXPRESS INC783723Sep 29, 2023Mar 1, 20268CA
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.
XP55022CABROCK EXPRESS INCSep 29, 2023Mar 1, 20267
XP555022CABROCK EXPRESS INCFeb 8, 2025Feb 8, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026