Equipment unit · VIN-decoded · NHTSA vPIC

2020 Kenworth T680

1XKYDP9X5LJ358973 · Truck-Tractor · TRUCK
Carriers run under3
36 mo
Inspections8
all-time
OOS inspections1
of 8
First seenJul 26, 2023
MD
Last seenJul 13, 2026
LA
Inspected under 3 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
1XKYDP9X5LJ358973
Make
Kenworth
Model
T680
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 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
YDP9X

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

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
358973

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.

Make
KENWORTH

Prefix basis · 26,022 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 26,022 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

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
T680

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 26, 2023 – Jul 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 13, 2026LAII · Walk-around0THUNDER MOUNTAIN TRANSPORT LLC 4294614A28980/WY
Jun 24, 2026IDIII · Driver-only3OOSTHUNDER MOUNTAIN TRANSPORT LLC 4294614A28980/WY
Apr 28, 2026ORIII · Driver-only1THUNDER MOUNTAIN TRANSPORT LLC 4294614AM58478/AZ
Mar 17, 2026CAII · Walk-around5A&N CARRIER INC 4222691AM58478/AZ
Jan 29, 2025COI · Full2THUNDER MOUNTAIN TRANSPORT LLC 4294614AM58478/AZ
Jan 9, 2025NMIII · Driver-only0THUNDER MOUNTAIN TRANSPORT LLC 4294614AM58478/AZ
Dec 31, 2024NMII · Walk-around0THUNDER MOUNTAIN TRANSPORT LLC 4294614AM58478/AZ
Jul 26, 2023MDII · Walk-around1CAROLINA TANK LINES LLC 226571NK2434/NC
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
THUNDER MOUNTAIN TRANSPORT LLC4294614Dec 31, 2024Jul 13, 20266WY
A&N CARRIER INC4222691Mar 17, 2026Mar 17, 20261CA
CAROLINA TANK LINES LLC226571Jul 26, 2023Jul 26, 20231NC
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.
A28980WY1THUNDER MOUNTAIN TRANSPORT LLCJun 24, 2026Jul 13, 20262
AM58478AZTHUNDER MOUNTAIN TRANSPORT LLCDec 31, 2024Apr 28, 20264
AM58478AZA&N CARRIER INCMar 17, 2026Mar 17, 20261
NK2434NC1CAROLINA TANK LINES LLCJul 26, 2023Jul 26, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026