New 2026 Peterbilt 579

This brand new Peterbilt 579 is powered by a Cummins X15 engine with 400 HP and 1,750 lb-ft of torque. It is paired with a Fuller Endurant 12-speed transmission making this truck ready to deliver strong performance for any on-highway applications. It features a 240" wheelbase with 10 3/4" steel frame rails and a Holland FW35 fifth wheel with a 12" slide. The front axle is a Hendrickson STEERTEK NXT rated at 12,500 lbs with SOFTEK suspension, while the tandem Meritor MT40-14X rear axles are rated at 40,000 lbs with a 2.64 ratio and Flex Air suspension. Braking includes front disc and rear drum air brakes, and the truck rolls on aluminum wheels with Michelin 22.5" tires (16-ply front, 14-ply rear). Dual 120-gallon aluminum fuel tanks with right-side DEF provide excellent range. The 124" BBC Unibilt cab includes an 80" UltraLoft sleeper with Platinum Sterling Gray interior, fixed cab suspension, and an adjustable steering column. Additional options include a Thermo King APU, and a Merritt frame mounted toolbox that are already installed and ready to go! This truck also comes with a 5yr/500k mile extended warranty on both the engine and aftertreatment! We have several units available and priced aggressively! Come by Rush Truck Center - OKC to speak with one of our experienced truck sales professionals. Delivery available.