2026 Kenworth W990 ISX / X15 — Used Market Prices & Trends

The 2026 Kenworth W990 powered by the ISX / X15 is currently represented by 9 active listings on TruckRadar, with a median asking price of $249,950 and median odometer reading of N/A miles. Over the past 90 days, asking prices have held flat. Prices have held steady, reflecting balanced supply and demand for this configuration in the current market. Most units listed are configured as conventional cab with tandem rear axle (6x4) drivetrains. Geographically, the largest concentrations of 2026 W990 inventory sit in Pennsylvania and Nebraska, where regional pricing ranges from $190,800 to $274,950. Common transmission pairings include manual and automated options. The 2026 W990 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.

2026 Kenworth W990 ISX / X15 — Frequently Asked Questions