How many 2021 Peterbilt 579 X15s are for sale right now?

TruckRadar currently shows 22 active 2021 Peterbilt 579 X15 listings from dealers nationwide. Inventory is updated daily as dealers add new units and remove listings that are no longer available.

What states have the most 2021 Peterbilt 579 X15 inventory?

The highest concentrations of 2021 Peterbilt 579 X15 inventory are in Texas. These states are major freight corridors with high dealer density for commercial trucks.

What is the typical mileage on a 2021 Peterbilt 579 X15 for sale?

The median odometer reading on 2021 Peterbilt 579 X15 listings is 425,238 miles. Used commercial trucks typically sell in the 300,000–700,000 mile range depending on service history and overhaul status.

Has the price of the 2021 Peterbilt 579 X15 gone up or down recently?

Prices have increased approximately 5.3% over the past 90 days. Monitor the 90-day trend chart on this page for the latest pricing movement for 2021 Peterbilt 579 X15 units.

2021 Peterbilt 579 X15 in Texas — Prices & Inventory

22 active listings in Texas · median 425,238 mi

Asking Price Range

Insufficient data

one dealer holds 100% of priced listings

90-Day Change

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Active Listings

Median Odometer

425,238 mi

The 2021 Peterbilt 579 powered by the X15 is currently represented by 22 active listings on TruckRadar. Listed units show a median odometer reading of about 425,238 miles. Most are configured as conventional cab with tandem rear axle (6x4) drivetrains, commonly paired with PO-16F112C12 and EEO-16F112C12 transmissions. Geographically, the largest concentrations of 2021 579 inventory sit in Texas. TruckRadar is not publishing a median asking price for this configuration because its priced listings are concentrated with a single dealer, so a median would reflect one seller's pricing rather than the broader market. To gauge pricing, review the individual active listings below — each shows the dealer's own asking price directly. Buyers comparing this configuration often also evaluate the 389 and 567. All figures reflect active dealer listings on TruckRadar and are asking prices, not sale prices.