The Model 520 diesel engine lineup spans from the lightweight, fuel-efficient PACCAR MX-11, available with up to 430 horsepower and 1,550 lb.-ft. of torque. The PACCAR PX-9 engine provides one of the highest power-to-weight ratios in its class with up to 380 horsepower and 1,250 lb.-ft. of torque. For natural gas applications, the Model 520 is available with a choice of 9- or 12-liter engines. These spark-ignited engines are capable of running on either Compressed Natural Gas (CNG) or Liquefied Natural Gas (LNG). With the flexibility to mount tanks either on the rail or integrated into the body, the Model 520 allows for maximum use of space when integrating a body for a variety of applications.

This low-cab forward vehicle adds a new dimension of productivity and versatility. An industry-leading, 65-degree cab tilt enhances maintenance and serviceability. Body installation is cost effective and efficient and the center console provides convenient access to body control integration points.

The Model 520 features a newly redesigned cab that delivers versatility, comfort and ergonomics. Center console sides are now angled, providing operators easy visibility and access to controls from either side. An enhanced HVAC system improves airflow and climate control for a more comfortable cab. The Model 520’s new interior features an ergonomic dash design with LED backlit gauges, a driver information display for critical vehicle data and rocker switches within easy reach for maximum driver comfort and productivity. A 90-degree door opening with three grab handles on each side and an impact-resistant, bolt-on step provides easy entry and exit.

The distinguished grille styling accommodates new pantograph wipers, providing 27% more coverage than traditional wipers for improved visibility. Two headlight technologies are available for the Model 520: halogen bulb lamps and optional LED lamps. Both provide outstanding brightness and coverage.