Fleetguard FK13850NN Fuel Filter Kit | Detroit DD13, DD15 & DD16 NanoNet® Fuel Filter

Fleetguard® FK13850NN NanoNet® Fuel Filter Kit for Detroit DD13, DD15 & DD16 Engines

The Fleetguard® FK13850NN Fuel Filter Kit is a premium NanoNet® fuel filtration kit engineered specifically for Detroit Diesel DD13, DD15, and DD16 engines. Designed to provide exceptional protection for today's high-pressure common rail fuel systems, the FK13850NN removes microscopic contaminants and water before they reach sensitive fuel injectors and high-pressure fuel pumps.

Featuring Fleetguard's advanced NanoNet® filtration technology, the FK13850NN delivers superior filtration efficiency, excellent contaminant-holding capacity, and longer service life compared to conventional fuel filters. The complete service kit includes the primary fuel filter element along with the seals and gaskets required to perform a complete fuel filter replacement.

Trusted by owner-operators, heavy-duty repair facilities, and commercial fleets throughout North America, the Fleetguard FK13850NN is one of the most popular premium fuel filter kits for Freightliner Cascadia and Western Star trucks equipped with Detroit Diesel engines.

Key Features

• Premium Fleetguard® NanoNet® fuel filter kit
• Designed for Detroit DD13, DD15 & DD16 engines
• Advanced NanoNet® synthetic filtration media
• Captures microscopic contaminants and water
• Protects high-pressure common rail fuel systems
• Helps extend injector and fuel pump life
• Complete maintenance kit with seals and gaskets
• OEM-quality fit and performance
• Manufactured by Cummins Filtration

Specifications

• Part Number: FK13850NN
• Brand: Fleetguard®
• Filter Type: Fuel Filter Kit
• Style: Cartridge Kit
• Media: NanoNet® Synthetic Media
• Outer Diameter: 4.59"
• Height: 10.00"
• Application: Detroit DD13, DD15 & DD16 Engines (2014+)
• Includes: Fuel filter element, strainer, O-rings, grease and sealing gaskets

Benefits of Replacing Your Fuel Filter

• Protects expensive fuel injectors
• Removes water from the fuel system
• Maintains proper fuel pressure
• Supports maximum engine performance
• Improves fuel economy
• Helps prevent injector failures
• Reduces maintenance costs
• Maximizes engine uptime

Common Applications

• Detroit DD13 Engines (2014+)
• Detroit DD15 Engines (2014+)
• Detroit DD16 Engines (2014+)
• Freightliner Cascadia
• Western Star 4700
• Western Star 4900
• Western Star 5700XE
• Mercedes-Benz trucks equipped with Detroit engines
• Regional Fleet Trucks
• Long-Haul Owner Operators

Major Cross Reference Numbers

• Mercedes-Benz 4720900451
• Luber-Finer L5104F
• WIX WF10103
• MANN KX2765KIT
• MANN KX27609
• TruckPro FCFK13850-NN
• TCT 96518
• HiFi Filter KN70437

Why NanoNet® Fuel Filtration Matters

Modern Detroit Diesel fuel systems operate at pressures exceeding 30,000 PSI. Even extremely small particles or water contamination can cause injector wear, reduced fuel efficiency, hard starting, and expensive high-pressure fuel pump failures.

Fleetguard's NanoNet® media was developed to capture ultra-fine contaminants while maintaining excellent fuel flow throughout the service interval. For owner-operators and fleets, premium filtration is one of the best investments you can make to protect your fuel system and reduce costly repairs.