394358 AM38708 298090 Lawn Mower 1/4" Inline Gas Fuel Filter for B & S BS 394358S 5098K 7-6572 1/4" Inline Gas 75 Micron Assembly (2/Pack)

What It Is

This is a 1/4-inch inline gas fuel filter (75 micron) designed for small engines, commonly used in lawn mowers, tractors, and generators. It replaces OEM part numbers 394358, 298090, and 5098K, and fits most Briggs & Stratton engines.

Fitment & Compatibility

• Measure first: The filter has 1/4-inch barbed hose connections. Confirm your fuel line inner diameter is exactly 1/4" (not 5/16" or 3/16") before buying.
• OEM cross-reference: Directly replaces Briggs & Stratton 394358S, 394358, 298090, and 5098K. Also fits MTD 7-6572 and many Toro/John Deere small engine models.
• Check engine brand: Primarily for Briggs & Stratton engines, but works on any small engine with 1/4" fuel line (e.g., Honda, Kohler, Tecumseh) if the line is compatible.
• Deck size irrelevant: This filter is engine-specific, not deck-size specific. Focus on engine model, not mower brand.

Key Things to Know

• 75 micron rating: Standard for small engines—fine enough to catch debris but won’t restrict fuel flow. Avoid lower micron filters (e.g., 40) on gravity-fed systems.
• Easy installation: No tools required—just pinch the fuel line, pull off old filter, push on new one. Ensure arrow points toward the carburetor (fuel flow direction).
• Common gotcha: If your fuel line is brittle or cracked, replacing just the filter may cause leaks. Replace the hose if it’s more than 2 years old.
• 2-pack value: For $5.99, you get two filters—keep one as a spare. Replace annually or if engine sputters/stalls under load.

Should You Buy It

If you have a Briggs & Stratton engine with a 1/4" fuel line and need a simple, cheap replacement, this is a solid choice. It’s easy to install, fits most small engines, and the 2-pack gives you a backup for the price of a single filter elsewhere. Not for machines with larger (5/16") or metric fuel lines—measure first.