Donaldson Filtration P550691 Fuel Filter Water Separator Spin-On

The Donaldson P550691 is a high-efficiency spin-on fuel filter with integrated water separator designed for diesel engines in heavy-duty trucks, construction equipment, and industrial applications. This combination filter removes both particulate contaminants and free water from diesel fuel, protecting fuel injection systems and ensuring optimal engine performance.

Key Features:

• Spin-on design for quick and clean filter changes
• Integrated water separator removes free water from fuel system
• High-capacity filtration media captures contaminants down to micron level
• Durable steel canister construction with corrosion-resistant finish
• Water-in-fuel sensor port for monitoring applications
• Compatible with biodiesel blends up to B20

Donaldson fuel filters are engineered to meet or exceed OEM specifications, providing reliable protection for fuel systems in demanding operating conditions. The P550691 features advanced synthetic media that offers superior dirt-holding capacity and water separation efficiency compared to conventional cellulose filters.