**2021 Peterbilt 579 Day Cab – 430HP MX-11 – 12-Speed AMT – Single Axle** Available in **Porterville, CA**, this well-maintained **2021 Peterbilt Motors Company 579** day cab is designed for reliability, efficiency, and driver comfort. Finished in white with a Prestige Sterling Grey interior, this single-axle truck is ideal for regional, local, or dedicated route operations. Powered by a **Paccar MX-11 diesel engine rated at 430 HP** (Engine Serial: X017266) paired with a **12-speed PACCAR PO-xxF112C Automated Manual Transmission (AMT)**, it delivers smooth, fuel-efficient performance. The 2.93 rear end ratio and 156” wheelbase provide excellent maneuverability and highway stability. With **337,114 miles** (337,047 ECM verified) and **7,249 engine hours**, this unit has been fleet maintained and is ready to work. --- ### Key Specifications: * **Engine:** Paccar MX-11 – 430 HP * **Transmission:** 12-Speed 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 * 295/75R22.5 Tires Front & Rear * Chrome Bumper * Chrome Exhaust * Visor * Heated Mirrors --- ### 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 --- **VIN:** 1XPBAK8X5MD760831 **Stock #:** U2274 / 760831 This non-sleeper 2021 Peterbilt 579 is a fuel-efficient and reliable day cab, ready for regional, local, or dedicated hauling applications.