Equipment unit · VIN-decoded · NHTSA vPIC

2018 Kenworth T680

1XKYD49X3JJ210557 · Truck-Tractor · TRUCK
Carriers run under2
31 mo
Inspections17
all-time
OOS inspections2
of 17
First seenNov 2, 2023
CA
Last seenJun 2, 2026
CA
Inspected under 2 different carriers in 31 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
1XKYD49X3JJ210557
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 14, 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
YD49X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

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
210557

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 · 43,483 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 43,483 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 · Nov 2, 2023 – Jun 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 2, 2026CAI · Full0NAJ TRANSPORT LLC 4216586RP22121/WA
May 20, 2026CAII · Walk-around1NAJ TRANSPORT LLC 4216586RP22121/WA
Jan 27, 2026CAI · Full0NAJ TRANSPORT LLC 4216586RP22121/WA
Oct 16, 2025CAI · Full2NAJ TRANSPORT LLC 4216586RP22121/WA
Sep 18, 2025CAII · Walk-around0NAJ TRANSPORT LLC 4216586RP22121/WA
Sep 14, 2025CAII · Walk-around1NAJ TRANSPORT LLC 4216586RP22121/WA
Jun 26, 2025CAI · Full0NAJ TRANSPORT LLC 4216586RP22121/WA
Jan 12, 2025WAI · Full3NAJ TRANSPORT LLC 4216586RP00427/WA
Dec 16, 2024ORIII · Driver-only0NAJ TRANSPORT LLC 4216586RP00427/WA
Dec 2, 2024CAI · Full1NAJ TRANSPORT LLC 4216586RP00427/WA
Nov 28, 2024CAIII · Driver-only1NAJ TRANSPORT LLC 4216586RP00427/WA
Oct 3, 2024ORIII · Driver-only0NAJ TRANSPORT LLC 4216586RP00427/WA
Oct 3, 2024WAI · Full9OOSNAJ TRANSPORT LLC 4216586RP00427/WA
Jun 21, 2024WAIII · Driver-only11NAJ TRANSPORT LLC 4216586RP00427/WA
Feb 24, 2024CAI · Full0RESHAM FREIGHT SERVICES LLC 3915484RP00427/WA
Jan 5, 2024AZII · Walk-around3OOSRESHAM FREIGHT SERVICES LLC 3915484RP00427/WA
Nov 2, 2023CAI · Full0RESHAM FREIGHT SERVICES LLC 3915484RP00427/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
NAJ TRANSPORT LLC4216586Jun 21, 2024Jun 2, 202614WA
RESHAM FREIGHT SERVICES LLC3915484Nov 2, 2023Feb 24, 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.
RP22121WANAJ TRANSPORT LLCJun 26, 2025Jun 2, 20267
RP00427WANAJ TRANSPORT LLCJun 21, 2024Jan 12, 20257
RP00427WARESHAM FREIGHT SERVICES LLCNov 2, 2023Feb 24, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026