Briggs & Stratton 394018S Round Air Filter Cartridge

Description

Protect your compatible Briggs & Stratton engine with the genuine 394018S Round Air-Filter Cartridge. Its pleated-paper media captures dust, dirt, grass particles, and other airborne contaminants before they enter the carburetor and engine.

This OEM filter is designed to provide the proper dimensions, airflow, and sealing required by compatible air-cleaner assemblies. Regular inspection and replacement can help prevent restricted airflow and support efficient combustion and dependable engine operation.

Product Features:

• Genuine Briggs & Stratton OEM replacement part
• Round pleated-paper air-filter cartridge
• Helps prevent dirt and debris from entering the engine
• Supports proper airflow and engine performance
• Designed to fit the original air-cleaner housing
• Suitable for select outdoor power equipment and generator engines

Package Includes:

• 1 Briggs & Stratton 394018S air-filter cartridge

The foam pre-cleaner and air-cleaner housing are not included.

Compatible Engine Applications:

• Select horizontal-shaft L-head twin-cylinder engines
• Most compatible Vanguard OHV V-twin engines
• Commonly used on select 12.5–20 gross HP engines
• Select generator, lawn and garden, and commercial power-equipment applications

Fitment varies by the engine’s complete model, type, and code numbers.

Replaces Part Numbers:

• 394018
• 392642
• 396291
• 86444GS

Additional equipment-brand references may cross to this filter, but compatibility should always be confirmed through the engine parts diagram.

Related Part:

• Briggs & Stratton 272490S foam pre-cleaner — sold separately

The pre-cleaner fits around the paper cartridge when required by the air-cleaner configuration.

Product Information:

• Brand: Briggs & Stratton
• Part number: 394018S
• Product type: Engine air-filter cartridge
• Filter shape: Round
• Filter media: Pleated paper
• Quantity: 1
• Condition: New
• Pre-cleaner included: No

Maintenance Guidance:

Inspect the air filter according to the equipment owner’s manual. Replace it when the media becomes excessively dirty, damaged, oil-soaked, or restricted. Engines operating in dusty environments may require more frequent filter service.

Allow the engine to cool before replacing the filter. Clean loose debris from the air-cleaner housing and ensure the new cartridge is properly seated and sealed before reinstalling the cover.