2021 Kenworth T680 MX 13 Liter — Used Market Prices & Trends

The 2021 Kenworth T680 powered by the MX 13 Liter is currently represented by 20 active listings on TruckRadar, with a median asking price of $44,999 and median odometer reading of 481,340 miles. Over the past 90 days, asking prices have moved down 16.7%. Seasonal softening in the used truck market tends to occur as fleets delay purchasing decisions during slower freight periods. Most units listed are configured as conventional cab with tandem rear axle drivetrains. Geographically, the largest concentrations of 2021 T680 inventory sit in Missouri, Georgia, and Arkansas, where regional pricing ranges from $44,999 to $49,999. Common transmission pairings include PACCAR Endurant 12 Speed and PACCAR 12 Speed. The 2021 T680 typically appears in dealer inventory for an average of 30 to 60 days before sale, based on TruckRadar listing turnover data. Buyers comparing this configuration often also evaluate the T880 and W900. Pricing reflects active asking prices from verified dealers and is not a substitute for a formal appraisal.

2021 Kenworth T680 MX 13 Liter — Frequently Asked Questions