2021 Kenworth T680 ISX15 — Used Market Prices & Trends

The 2021 Kenworth T680 powered by the ISX15 is currently represented by 4 active listings on TruckRadar, with a median asking price of $53,474.5 and median odometer reading of 486,355 miles. Over the past 90 days, asking prices have moved up 44.4%. Demand for late-model commercial trucks typically strengthens as fleets refresh ahead of Q3 bid cycles and peak freight season. Most units listed are configured as conventional cab with tandem rear axle (6x4) drivetrains. Geographically, the largest concentrations of 2021 T680 inventory sit in Arizona and Oregon, where regional pricing ranges from $44,999 to $61,950. Common transmission pairings include 13M. 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 ISX15 — Frequently Asked Questions