Factory build sheet

2015 Kenworth T680 T680

Build 1XKYD49X-F · 15L 6cyl · Truck-Tractor

VIN positions 1 through 8 read 1XKYD49X and position 10 reads F. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.

Every T680 whose VIN starts 1XKYD49X and carries F in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 290 of them.

  • Decoded Jul 7, 2026
  • 290 known VINs
  • 1 listed for sale now

Factory specification

As filed by Kenworth with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.

Engine

Displacement
15 L
Cylinders
6
Configuration
In-Line
Engine model
ISX
Engine manufacturer
Cummins
Horsepower
400 hp
Fuel type
Diesel

Drivetrain

Drive type
6x4
Brake system
Air

Body & chassis

Body class
Truck-Tractor
NHTSA body type
TRUCK
Cab type
MDHD: COE (Cab Over Engine)
Manufacturer
KENWORTH TRUCK COMPANY

Weight rating

GVWR class
Class 8
GVWR
33,001 lb or less

Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.

The same build, other model years

Kenworth used the VIN pattern 1XKYD49X for 8 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.

How this VIN pattern is read

A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.

Positions Characters What they encode
1–3 1XK KENWORTH TRUCK COMPANY · World manufacturer identifier
4–8 YD49X Model, body style, engine and restraint system
9 × Check digit — computed per vehicle, not part of the build
10 F Model year — 2015
11 × Assembly plant
12–17 ×××××× Production sequence number, unique to each vehicle

290 vehicles carry this build

Every VIN we have decoded to 1XKYD49X-F shares the specification above.

  • 290 Known VINs
  • 1 Listed for sale now

Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.

Browse all 290 VINs of this build →

Neighboring configurations

Other factory configurations of the T680, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.

Keep going

Where this data comes from

Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.

Vehicle counts come from the 290 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.