**2021 Peterbilt 579 Day Cab – 430HP MX-11 – 12-Speed AMT (Autoshift) – Single Axle** Located in **Porterville, CA**, this **2021 Peterbilt Motors Company 579** day cab is built for reliability, driver comfort, and efficient regional or local operations. Finished in white with a Prestige Sterling Grey interior, this single-axle truck delivers a professional, clean look with premium features. Powered by a **Paccar MX-11 diesel engine rated at 430 HP** (Engine Serial: X017537) paired with a **12-speed PACCAR PO-xxF112C Automated Manual Transmission (Autoshift)**, it offers smooth shifting, solid torque, and fuel-efficient performance. The 2.93 rear end ratio and 156” wheelbase ensure stable highway performance and precise maneuvering. With **291,125 miles** (291,207 ECM verified) and **6,603 engine hours**, this truck has been professionally maintained and is ready for immediate operation. --- ### Key Specifications: * **Engine:** Paccar MX-11 – 430 HP * **Transmission:** 12-Speed Autoshift AMT * **Axle Configuration:** Single Axle * **Front Axle Capacity:** 12,350 lbs * **Rear Axle Capacity:** 21,000 lbs * **GVWR:** 33,350 lbs * **Rear End Ratio:** 2.93 * **Wheelbase:** 156” * **Suspension:** Peterbilt Air Trac Air Ride * **Brakes:** Air * **Fuel Capacity:** Dual 50-gallon aluminum tanks (100 gallons total) * **EPA Year:** 2020 * **5th Wheel:** Stationary --- ### Exterior & Equipment: * Aluminum Front & Rear Wheels * 275/89R22.5 Front & 295/75R22.5 Rear Tires * Chrome Bumper * Chrome Exhaust * Stainless Steel Visor --- ### Interior & Driver Comfort: * Prestige Sterling Grey Interior * Dual High-Back Seats * Airride Passenger Seat * Air Conditioning * Power Windows * Power Door Locks * Power Steering * Tilt/Telescopic Steering Wheel * Cruise Control * CB Radio * AM/FM Radio * Heated Mirrors --- **VIN:** 1XPBAK8XXMD760842 **Stock #:** U2285 / 760842 This non-sleeper 2021 Peterbilt 579 is a reliable, well-equipped day cab, ready for regional or local hauling operations.