Equipment unit · VIN-decoded · NHTSA vPIC

2018 Kenworth T680

1XKYDP9X5JJ175621 · Truck-Tractor · TRUCK
Carriers run under3
30 mo
Inspections6
all-time
OOS inspections0
of 6
First seenJul 6, 2023
OK
Last seenJan 13, 2026
TX
Inspected under 3 different carriers in 30 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
1XKYDP9X5JJ175621
Make
Kenworth
Model
T680
Model year
2018
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
1988 or 2018

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

North American serial sequence
175621

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
2018

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 6, 2023 – Jan 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 13, 2026TXII · Walk-around0QRO UNLIMITED LLC 4391477R786431/TX
Oct 5, 2025TXII · Walk-around0QRO UNLIMITED LLC 4391477R786431/TX
Jul 20, 2025TXII · Walk-around1QRO UNLIMITED LLC 4391477R786431/TX
Aug 21, 2024TXII · Walk-around1NATIONAL DRAYAGE SERVICES (DE) LLC 17470933643860/IN
Jul 19, 2023OKII · Walk-around2STG DRAYAGE LLC 6881433469090/IN
Jul 6, 2023OKIII · Driver-only0STG DRAYAGE LLC 6881433469090/IN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
QRO UNLIMITED LLC4391477Jul 20, 2025Jan 13, 20263TX
NATIONAL DRAYAGE SERVICES (DE) LLC1747093Aug 21, 2024Aug 21, 20241PA
STG DRAYAGE LLC688143Jul 6, 2023Jul 19, 20232OH
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.
R786431TXQRO UNLIMITED LLCJul 20, 2025Jan 13, 20263
3643860INNATIONAL DRAYAGE SERVICES (DE) LLCAug 21, 2024Aug 21, 20241
3469090INSTG DRAYAGE LLCJul 6, 2023Jul 19, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026