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Briggs & Stratton Original Equipment 491588S Air Filter. Briggs & Stratton genuine parts are specially designed to exact OEM standards, manufactured and tested to help deliver optimum performance in Briggs & Stratton engines.

Air cleaner

Air cleaner

Air filter cartridge filter

Tecumseh air cleaner.

Filter-a/c cartridge

Air filter. If the air filter is clogged or dirty, the engine might not start, might be hard to start, or might run roughly. This filter should be replaced periodically to ensure optimal engine performance.

Briggs & Stratton AVS air filter kit with foam pre-filter and pleated air filter cartridge with pull handle and instructions.

Air filter assembly

Filter-air cleaner

Filter-air cleaner cartridge

Air filter

Air Filter Cartridge, Use on Intek 5.5-6.75 HP Engines

Air cleaner w/pre cleaner

Air filter
A clogged air filter forces your Simplicity mower's engine to work harder, cutting fuel efficiency and power. Genuine OEM air filters from Repair Clinic restore clean airflow and keep your engine running smoothly season after season. We stock exact replacements for your model—no guessing on fitment.
When your mower bogs down during cutting, loses power on hills, or shows black exhaust smoke, it's time to check the filter. Browse our full range of Simplicity lawn mower air filter parts and find your exact match by model number.
Need help? Have your model number ready and we'll guide you to the right filter.
Change your air filter every 50 operating hours or annually, whichever comes first. If you mow in dusty conditions, check it every 25 hours. A dirty filter reduces power and fuel economy, so don't skip this maintenance step.
Paper filters work best in normal conditions and offer excellent protection. Foam filters are better for wet grass or sandy soil since they're washable and reusable. Check your owner's manual for your mower's specific design.
Yes, if you have a foam or reusable filter, you can rinse it gently in warm soapy water and air-dry it. Paper filters cannot be cleaned effectively—they must be replaced. Either way, inspect the housing for cracks or damage while you're at it.
Look on the frame or deck near the engine—the label usually shows a five or six-digit code. You can also check inside the fuel tank door or the back of the seat. Once you have it, enter it on our site to see all compatible filters quickly.


Ensure reliable operation of your Simplicity Lawn Mower with genuine OEM air filter replacement parts from Repair Clinic. Replacing the air filter is crucial as it prevents dirt and debris from entering the engine, ensuring smooth operation and extending the life of your mower. Easily find the exact air filter you need using our model number lookup tool, and benefit from same-day shipping and our Price Match Guarantee. For assistance with installation, visit our Lawn Mower Repair Help page. Browse other Lawn Mower Switch Parts for additional repair options.
Simplicity prints the model number on a label or plate around the mower frame, often near the blade deck or engine housing. On riding models, check beneath the seat or on the rear of the mower as well. The number may be a five- or six-digit code, so copy it carefully, including any letters or decimals. Type it into our model number lookup and the catalog narrows to parts made for your unit, not just the filter or another single part. Using the complete model number helps match every associated replacement part to the mower you own. That means fewer wrong orders and a faster repair.

Regular filter replacement is one of the simplest ways to keep your Simplicity Lawn Mower running efficiently. Repair Clinic stocks OEM filters for a wide range of appliances, ready to ship, along with installation videos and part diagrams. Use the model number lookup to confirm the exact filter for your unit, then order a few to keep on hand for scheduled service intervals.

Repair Clinic has five ways for you to stop your lawn mower from leaking gas. Before we get to those, let's review how the gasoline you pour into the tank powers the mower.

Why does your lawn mower battery keep dying? Repair Clinic has done the research and this article will provide some answers, starting with what a battery's purpose is on a gas-powered lawn mower.

What's causing that black smoke to billow out of the engine? There are three likely reasons and they are all related to how a gas-powered lawn mower engine operates.