Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth T680

3WKYD49X5SF557524 · Truck-Tractor · TRUCK
Carriers run under1
12 mo
Inspections7
all-time
OOS inspections0
of 7
First seenMay 16, 2025
KS
Last seenMay 19, 2026
US
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3WKYD49X5SF557524
Make
Kenworth
Model
T680
Model year
2025
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
3WK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
YD49X

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
1995 or 2025

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

North American serial sequence
557524

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 · 1,094 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 1,094 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
2025

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 · May 16, 2025 – May 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 19, 2026USI · Full5ADD EXPRESS INC 570357ZP78283/CA
Apr 24, 2026CAII · Walk-around3ADD EXPRESS INC 570357ZP78283/CA
Feb 26, 2026NMII · Walk-around0ADD EXPRESS INC 570357ZP78283/CA
Dec 23, 2025USI · Full0ADD EXPRESS INC 570357ZP78283/CA
Nov 7, 2025CAIII · Driver-only0ADD EXPRESS INC 570357ZP78283/CA
Jul 23, 2025AZII · Walk-around2ADD EXPRESS INC 570357ZP52859/CA
May 16, 2025KSIII · Driver-only0ADD EXPRESS INC 570357262860T/TN
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ADD EXPRESS INC570357May 16, 2025May 19, 20267CA
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.
ZP78283CAADD EXPRESS INCNov 7, 2025May 19, 20265
ZP52859CAADD EXPRESS INCJul 23, 2025Jul 23, 20251
262860TTNADD EXPRESS INCMay 16, 2025May 16, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026