THE SPECS GUIDE

2021 Kenworth T680

Find your trim. See what changes.

Compare recorded engines, drivetrains and specifications, then open the VIN pattern that matches your car.

Explore trims ↓ Compare specs →

Have a specific car in mind?

Use its full VIN to look up the vehicle and check the recorded specifications.

Find a matching pattern on this page, or continue to vehicle lookup.

SIDE BY SIDE

Compare the details

Choose up to three VIN patterns. Each column describes one recorded pattern.

Swipe the table sideways to compare vehicles. Specification names stay visible.

Specification T680 1XKYD49X-M T680 1XKYDP9X-M T680 1XKYDK9X-M
Engine 15L 6-cyl 12.9L 6-cyl 10.8L 6-cyl
Power 400 hp 405 hp 335 hp
Fuel Diesel Diesel Diesel
Body Truck-Tractor Truck-Tractor Truck-Tractor

Missing data does not mean a feature is absent. Prices are advertised asking prices for each pattern’s own sample, not completed sale prices or a trim-wide average.

EXPLORE THE LINEUP

Find your T680

Grouped by recorded trim, with engine and drive variants underneath. Open a variant to see every source pattern.

2021 T680

T680

7 VIN patterns
10.8L 6-cyl · Diesel · 6x4 1 pattern · View specs
1XKYDK9X-M → 3 VINs in our data

335 hp · Truck-Tractor

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

12.9L 6-cyl · Diesel · 6x4 2 patterns · View specs
1XKYDP9X-M → 94 VINs in our data

405 hp · Truck-Tractor

No qualifying asking-price sample for this pattern.

1NKYLP9X-M → 1 VINs in our data

405 hp · Truck

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

15L 6-cyl · Diesel · 4x2 1 pattern · View specs
1XKYA48X-M → 1 VINs in our data

400 hp · Truck-Tractor

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

15L 6-cyl · Diesel · 6x2 1 pattern · View specs
1XKYC49X-M → 1 VINs in our data

400 hp · Truck-Tractor

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

15L 6-cyl · Diesel · 6x4 1 pattern · View specs
1XKYD49X-M → 120 VINs in our data

400 hp · Truck-Tractor

No qualifying asking-price sample for this pattern.

15L 6-cyl · Diesel · Other 1 pattern · View specs
1XKYP40X-M → 1 VINs in our data

400 hp · Truck-Tractor

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

2021 T680

Trim not recorded

1 VIN pattern
12L 6-cyl · Natural Gas · 6x4 1 pattern · View specs
1NKYD39X-M → 3 VINs in our data

Truck-Tractor

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

Source: manufacturer specifications decoded through NHTSA vPIC, alongside VIN and listing records in our dataset. Trim groups are for browsing; shared labels do not establish identical equipment. Confirm options on the specific vehicle.

BEFORE YOU CHOOSE

Go beyond the spec sheet

Equipment, fuel economy and safety results can vary with the vehicle’s engine, drivetrain and options.

Fuel economy

Match the engine and drivetrain to an EPA entry. A model-year fuel estimate may describe a different variant from yours.

Find the matching EPA vehicle →