Donaldson Diesel Fuel Filters Uniquely designed to protect injectors and pumps and keep engines and heavy-duty Equipment running smoothly. Today‘s diesel engines need to maintain high performance levels to remain compliant with stringent emissions regulations. Fuel filtration plays a key role, with current high presSure common rail fuel injectors operating at pressures up to 2,000 - 3,100 bar / 30,000 - 45,000 psi. Clean fuel helps minimize expensive repairs and unplanned downtime. Donaldson offer fuel filtration products to protect your fuel systems – including injectors, pumps and engines. We offer a complete line of Fuel Filters for popular on and off-road applications. Spin-Ons and Cartridges are available in a wide range of filter medias. Donaldson Air / Oil Separators efficiently remove oil mist from compressed air while maintaining low pressure drop and maximum airflow.