2015 Kenworth T800 ISX15 — Used Market Prices & Trends

The 2015 Kenworth T800 powered by the ISX15 is currently represented by 3 active listings on TruckRadar, with a median asking price of $99,750 and median odometer reading of 376,000 miles. Over the past 90 days, asking prices have moved up 13.5%. 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 2015 T800 inventory sit in Texas and Illinois, where regional pricing ranges from $64,750 to $99,750. Common transmission pairings include manual and automated options. The 2015 T800 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 T680. Pricing reflects active asking prices from verified dealers and is not a substitute for a formal appraisal.

2015 Kenworth T800 ISX15 — Frequently Asked Questions