Equipment unit · VIN-decoded · NHTSA vPIC

2017 Kenworth T680

1XKYDP9X3HJ139128 · Truck-Tractor · TRUCK
Carriers run under2
32 mo
Inspections7
all-time
OOS inspections1
of 7
First seenDec 29, 2023
TX
Last seenAug 11, 2026
PA
Inspected under 2 different carriers in 32 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
1XKYDP9X3HJ139128
Make
Kenworth
Model
T680
Model year
2017
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
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1987 or 2017

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

North American serial sequence
139128

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
2017

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 · Dec 29, 2023 – Aug 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 11, 2026PAII · Walk-around9OOSTOS TRANS INC 4356608AH75617/PA
Aug 21, 2025OHII · Walk-around1TOS TRANS INC 4356608TEMP/IL
Jul 22, 2025PAIII · Driver-only2TOS TRANS INC 4356608
Mar 31, 2025WII · Full2TOS TRANS INC 4356608TEMP/PA
Jun 6, 2024TXII · Walk-around0BIG DOG MIX CONCRETE INC 37446991M22211/TX
Feb 28, 2024TXII · Walk-around2BIG DOG MIX CONCRETE INC 37446991M22211/TX
Dec 29, 2023TXII · Walk-around2BIG DOG MIX CONCRETE INC 37446991M22211/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TOS TRANS INC4356608Mar 31, 2025Aug 11, 20264PA
BIG DOG MIX CONCRETE INC3744699Dec 29, 2023Jun 6, 20243TX
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.
AH75617PA1TOS TRANS INCAug 11, 2026Aug 11, 20261
TEMPILTOS TRANS INCAug 21, 2025Aug 21, 20251
OTTOS TRANS INCJul 22, 2025Jul 22, 20251
TEMPPATOS TRANS INCMar 31, 2025Mar 31, 20251
1M22211TXBIG DOG MIX CONCRETE INCDec 29, 2023Jun 6, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026