Fleetguard FK13850NN DD15 Fuel Filter Kit – NanoNet Fuel Filtration

Fleetguard FK13850NN Fuel Filter Kit

The Fleetguard FK13850NN fuel filter kit is a premium heavy-duty diesel fuel filtration system designed for Detroit Diesel DD13, DD15, and DD16 engines. Featuring advanced NanoNet® filtration media, this kit helps remove harmful contaminants, water, and particulates from diesel fuel to protect high-pressure fuel systems and injectors in demanding commercial truck applications.

Key Features

• Advanced NanoNet® high-efficiency filtration media
• Designed for Detroit Diesel DD13 / DD15 / DD16 engines
• Helps protect injectors and fuel system components
• Removes water and harmful fuel contaminants
• Complete maintenance kit with seals and installation components
• Heavy-duty construction for commercial truck applications
• OEM-quality fit and performance

Specifications

• Part Number: FK13850NN
• Brand: Fleetguard
• Filter Type: Fuel Filter Kit
• Filtration Media: NanoNet®
• Outer Diameter: 4.59 in
• Height: 10.00 in
• Application: Detroit Diesel DD13 / DD15 / DD16
• Category: Fuel System / Fuel Filters

Applications

Compatible with Freightliner Cascadia, Western Star, and Mercedes-Benz heavy-duty truck applications equipped with Detroit Diesel DD13, DD15, and DD16 engines.

What's Included

• Fuel filter element
• Fuel strainer
• Sealing gaskets and O-rings
• Installation grease

Cross Reference

This Fleetguard FK13850NN fuel filter kit replaces multiple OEM and aftermarket part numbers:

• Detroit Diesel: A4720900451
• Detroit Diesel: A4720900551
• Detroit Diesel: A4720900651
• Baldwin: PF9908 / PF9908KIT
• Donaldson: P551063
• Fleetguard: FK13834
• Luber-Finer: L5104F
• WIX: WF10103
• TruckPro: FCFK13850-NN

Why Choose Fleetguard NanoNet®?

Fleetguard NanoNet® technology provides enhanced fuel filtration efficiency and contaminant control for modern high-pressure diesel fuel systems. Cleaner fuel helps reduce injector wear, maintain performance, and minimize costly fuel system failures.

Why Replace Fuel Filters?

Modern Detroit Diesel fuel systems operate under extremely high pressure and require clean fuel for proper injector performance and reliability. Replacing fuel filters at recommended intervals helps improve fuel economy, reduce downtime, and extend component life.

Fitment Notice

Verify engine application and OEM filter numbers before ordering. Contact us with your VIN or engine serial number for fitment confirmation.