AULDAY S3213 Marine Fuel Filter 2-Pack - Fuel/Water Separator Cartridge, Three-Layer Synthetic Media

The AULDAY 2PCS S3213 marine fuel filters are direct-fit fuel/water separators that remove water and contaminants to protect outboard engines and restore reliable fuel delivery.

Designed as a drop-in replacement for common OEM numbers (including 35-60494-1, S3213, 18-7932-1 and 35-809097), these two S3213 filters use three-layer synthetic filter media to trap particles and shed water before fuel reaches the pump and injectors. Each package contains two identical cartridges, ready for plug-and-play installation on compatible marine outboard motors.

How will these filters improve my boat’s engine reliability?

By separating water and removing solid contaminants from gasoline, the filters reduce corrosion, injector fouling, and premature wear of fuel system parts. Cleaner fuel helps maintain consistent combustion and lowers the risk of sputtering or stalling caused by contaminated fuel.

• Three-layer synthetic filter paper for efficient particle capture
• Water-separating design to protect fuel pumps and injectors
• Reduces wear on pistons, rings and cylinder liners

Will the AULDAY S3213 fit my outboard motor and how easy is installation?

These S3213 elements are built to match the dimensions and connection style of the listed OEM part numbers, making them a direct-fit replacement for many marine engines. No electrical changes are required—installation is typically plug-and-play when your engine uses the matching cartridge format.

• Replaces multiple OEM part numbers for broad compatibility
• Pre-fill the dirty side with clean fuel before swapping cartridges
• After install: prime, start engine, and check for leaks

What materials and performance features are inside the filter?

AULDAY S3213 filters use original Italy three-layer synthetic fiber media engineered to balance filtration efficiency and flow. That media captures fine particulates while shedding separated water to the drain chamber, helping protect fuel system components without restricting fuel flow under normal operating conditions.

• Synthetic fiber media for durability and consistent filtration
• Designed for high-performance marine applications
• Helps maintain fuel flow while removing contaminants

What warranty and support does AULDAY provide?

Each purchase includes a 12-month warranty and lifetime technical support from the seller. If you encounter fitment questions or installation issues, AULDAY’s support team is available to help identify the correct replacement and guide the installation steps.

• 12-month product warranty for manufacturing defects
• Lifetime technical assistance for fitment and installation
• Sold as a two-filter pack to service two change intervals or two engines

Who is this for? Boaters, marine mechanics, and fleet owners who need a dependable, OEM-compatible fuel/water filter for outboard motors will find the AULDAY S3213 pack useful. It’s ideal for preventative maintenance schedules, replacing worn or contaminated filters, or stocking a service kit for seasonal engine care. If your engine lists any of the referenced OEM numbers, these filters offer a cost-effective way to restore clean, water-free fuel to your system.