**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 offers reliability and efficiency for regional or local hauling. Finished in **white** with a **Prestige Sterling Grey interior**, it combines driver comfort with heavy-duty performance. Powered by a **Paccar MX-11 diesel engine producing 430 HP** (Engine Serial: X017610) paired with a **12-speed PACCAR PO-xxF112C Automated Manual Transmission (Autoshift)**, this truck delivers smooth performance. The **2.93 rear end ratio** and **156” wheelbase** provide excellent stability and handling for single-axle operations. With **310,244 miles** (ECM verified at 310,253 mi) and **8,788 engine hours**, this truck has been well-used but maintained, making it ready for continued service. --- ### Key Specifications: * **Engine:** Paccar MX-11 – 430 HP * **Transmission:** 12-Speed AMT Autoshift * **Axle Configuration:** Single * **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 * Front/Rear Tires: 295/75R22.5 * Chrome Bumper * Chrome Exhaust --- ### Interior & Driver Comfort: * Prestige Sterling Grey Interior * Air Conditioning * Tilt/Telescopic Steering Wheel * Power Steering, Windows, and Door Locks * Dual High-Back Seats * Airride Passenger Seat * Heated Mirrors * Cruise Control * CB Radio / AM/FM Radio --- **VIN:** 1XPBAK8X5MD762370 **Stock #:** U2301 / 762370 This 2021 Peterbilt 579 is a well-equipped single-axle day cab with comfort features and a reliable MX-11 engine, ideal for fleets needing a durable regional hauler.