YAMAKATO 698369 Air Filter OEM_Standard for B&S Lawn Mower 3.0-5.0 HP Gross HP/CV, 4.50-6.00 Gross Torque, 450-600 Series, 5088 3PCS

What It Is

The YAMAKATO 698369 Air Filter is a replacement pre-filter foam element designed for small Briggs & Stratton engines in lawn mowers and power equipment. It fits engines in the 3.0–5.0 HP range, 4.50–6.00 Gross Torque, and 450–600 Series, sold as a 3-pack for frequent swaps.

Fitment & Compatibility

Before buying, verify your engine’s model number (stamped on the blower housing or valve cover). This filter replaces OEM part 698369 and fits B&S engines in the 450, 500, 550, and 600 Series (e.g., 5088 prefix). It’s for engines with a single-stage foam pre-filter only—not for paper cartridge or dual-element setups. Measure the filter cavity: this foam element is roughly 3.5 x 2.5 x 1.5 inches. If your mower deck is 20–22 inches, it likely matches, but always check the engine tag, not deck size.

Key Things to Know

• Quality: Users report it’s slightly thinner than OEM, but holds up fine for seasonal use. Washable and reusable with light oil.
• Installation: Tool-free—just slip it over the carburetor intake or into the housing. Ensure it seats fully to avoid unfiltered air.
• Common Gotcha: This is a pre-filter only. If your engine uses a paper filter underneath, you’ll need both. The 3-pack is handy for high-dust conditions or frequent mowing.
• Price vs. OEM: At ~$3.33 per filter, it’s a budget pick. OEM costs 2–3x more but may last longer.

Should You Buy It

Buy it if you own a small B&S engine (450–600 Series) and want a cheap, functional pre-filter for routine swaps—especially if you mow in dusty conditions or maintain multiple mowers. Skip it if you need a paper filter or prefer OEM thickness for heavy commercial use.