595660 Air Cleaner Cover & 799579 Air Filter Kit for 590581 Most 450E 550E 550Ex 08P502 08P602 09P602 09P702 Series Lawn Mower Engines with 698719 Spring Kit

What It Is

This combo replaces the air cleaner cover (part 595660) and filter (799579) for select Briggs & Stratton 450E, 550E, 550Ex, 08P502, 08P602, 09P602, and 09P702 series engines. It’s designed for walk-behind mowers, pressure washers, and small tractors using these engines, ensuring clean airflow to the carburetor.

Fitment & Compatibility

• Check your engine model number – Look for a stamped number like “09P702” on the engine shroud or valve cover. This kit fits those listed and others using the 590581 air cleaner base.
• Deck size doesn’t matter – Compatibility is engine-based, not mower deck size. Any brand (Craftsman, MTD, Troy-Bilt, etc.) using these engines works.
• OEM vs aftermarket – This is an aftermarket kit. The filter and cover match OEM dimensions (cover ~4.5” x 2.5”, filter ~3” x 1.5”). Measure your old cover’s mounting tabs and filter slot to confirm.
• Includes spring kit (698719) – The kit comes with the two springs needed to secure the cover. Verify your base has the spring hooks intact.

Key Things to Know

• Easy install – No tools required. Snap the filter over the base, hook the springs onto the cover tabs, and clip it shut. Takes under 2 minutes.
• Checks before buying – If your spring hooks are broken or the base is warped, this kit won’t fix that. You’ll need a new air cleaner base (part 590581).
• Quality note – The foam pre-filter is slightly thinner than OEM, but users report it seals fine and doesn’t affect performance. Replace it every season or after heavy dust use.
• Common gotcha – The cover’s plastic tabs can be brittle if overtightened. Hand-tighten only; don’t force the springs past their natural tension.

Should You Buy It

If your 450E/550E/550Ex series engine has a dirty or cracked air filter cover and you want a quick, affordable fix, this kit is a solid value. It’s not for engines with a damaged base, but for routine maintenance or a simple swap, it’s a reliable choice.