593260 Lawn Mower Air Filter 798452 334404 Air Cleaner Filter, Replacement Accessories for Most Lawn Mowers 500, 500E, 550E, 500EX, 550EX, 625E, 675, 625EX, 675EX, 675EXI, 725EXI Series Engines (2PCS)

What It Is

This is an aftermarket air filter set (2-pack) designed for small engines on walk-behind lawn mowers, specifically those in the Briggs & Stratton 500, 500E, 550E, 500EX, 550EX, 625E, 675, 625EX, 675EX, 675EXI, and 725EXI series. It replaces OEM part numbers 593260, 798452, and 334404.

Fitment & Compatibility

Before buying, confirm your engine model number (found on a sticker near the spark plug or valve cover). This filter fits most Briggs & Stratton single-cylinder OHV engines in the listed series, but not all variations—especially older or non-standard decks. Measure the filter housing: this filter is roughly 4.5" long x 3" wide x 1.5" thick. If your current filter is a different shape (e.g., round or rectangular with a different clip pattern), it won’t fit. This is an aftermarket part, not OEM, so it may have slightly looser foam or less precise edges than a genuine Briggs filter.

Key Things to Know

• Quality: Users consistently report it matches OEM fit and filtration for the price. Some note the foam is slightly less dense than OEM, but still effective for residential use.
• Installation: Tool-free—just remove the old filter, clean the housing, and snap the new one in. Takes under 2 minutes.
• Common gotcha: If your engine has a pre-filter (foam wrap), this filter replaces both the paper and foam elements in one piece. Do not stack a separate foam pre-filter on top.
• Maintenance: Check and replace every 25 hours of use or once per season, more often if mowing in dusty conditions.

Should You Buy It

If you need a budget-friendly, reliable air filter for a common Briggs & Stratton engine in the 500–725 series, this 2-pack is a solid value. It’s not for commercial or heavy-duty use, but for residential mowing it performs well and saves money over OEM replacements.