Air Filter For Briggs & Stratton 10T series 300-550 Series 3.5 to 4.5 HP engines Replaces Briggs&Stratton 698369

What It Is

This air filter fits Briggs & Stratton 10T series, 300-550 series, and 3.5 to 4.5 HP engines. It replaces OEM part 698369 and is used on walk-behind mowers, tillers, and small generators requiring a foam pre-cleaner and paper element.

Fitment & Compatibility

Before buying, confirm your engine’s model number (e.g., 10T902, 10T502) and series (300-550). This filter is not for 5HP+ or Vanguard engines. Measure the filter housing: the paper element is ~3.5” wide x 2.5” tall x 1.5” deep, and the foam pre-cleaner fits over it. Only use this part if your mower uses a two-piece filter (foam + paper). Check your current filter’s part number—if it ends in 698369 or 793169, this is a direct swap. Aftermarket version meets OEM specs, but check that the foam fits snugly without gaps.

Key Things to Know

• Quality: This is a basic foam and paper filter; it’s not high-flow or washable. Expect 1-2 seasons of use under normal mowing.
• Installation: Easy—remove old filter, slide foam over paper element, and press into housing. No tools needed.
• Gotcha: Some users report the foam pre-cleaner is slightly thinner than OEM. If your housing is worn, the filter may not seal perfectly. Check for debris after installation.
• Common mistake: Don’t oil the foam—this is a dry filter. Oil will clog and reduce airflow.

Should You Buy It

If you need a quick, cheap replacement for a standard 3.5-4.5 HP Briggs & Stratton mower or tiller, this filter works fine. It’s not for heavy-duty or commercial use—go with OEM if you need a tighter seal or longer life. For occasional home use, the price is hard to beat.