2021 Peterbilt 337 PX-7 — Used Market Prices & Trends

The 2021 Peterbilt 337 powered by the PX-7 is currently represented by 5 active listings on TruckRadar, with a median asking price of $52,983.5 and median odometer reading of 192,635 miles. Over the past 90 days, asking prices have moved down 13.3%. 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 single rear axle (4x2) drivetrains. Geographically, the largest concentrations of 2021 337 inventory sit in Wisconsin, where regional pricing ranges from $79,990 to $79,990. Common transmission pairings include 2500 RDS-P. The 2021 337 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 579 and 567. Pricing reflects active asking prices from verified dealers and is not a substitute for a formal appraisal.

2021 Peterbilt 337 PX-7 — Frequently Asked Questions