Experience superior diesel engine protection with the Donaldson P551859 Fuel Filter, Water Separator Spin-On. Engineered for vehicles facing heavy-duty usage, this filter expertly removes contaminants and water from diesel fuel—helping prevent corrosion and costly injector damage in both industrial equipment and on-road vehicles.

Key Specifications

• Overall Length: 217 mm (8.54 inches)
• Thread Sizes: Main thread – 1-14; Bowl thread – 3 3/4-10 UN
• Gasket Dimensions: Outer diameter – 90.8 mm (3.57 inches); Inner diameter – 80.8 mm (3.18 inches)
• Efficiency Rating: 90% at 30 microns (meets ISO 4402/11171 standards)

Features & Benefits

• Genuine Donaldson Quality: Proven durability and reliability in harsh conditions.
• Enhanced Fuel Cleanliness: Removes water and contaminants to extend engine lifespan.
• Easy Maintenance: The innovative spin-on design allows for swift, hassle-free installation, minimizing downtime.
• Broad Application: Suitable for a wide range of diesel-powered industrial and on-road vehicles.

Order with confidence knowing that items typically ship within 1 business day, arrive as a brand-new genuine part, and can be ordered with no minimum requirement. Discover more trusted solutions in our Donaldson Collection and browse our Fuel/Water Separators for additional options to keep your engine running at peak performance.