496894s 496894 Air Filter+ 272403S Pre Filter for BS 493909 5053B 5053D 5053H 5053K 4142 4139 John Deere 12.5-17 HP LG496894JD LG496894S Craftsman lt 1000 24151 917.374356 Lawn Mower Air Filter

What It Is

This is a two-piece air filter set (main filter + pre-filter) designed for small engines, primarily Briggs & Stratton single-cylinder models in the 12.5–17 HP range. It’s commonly used on riding mowers, including John Deere and Craftsman LT1000 series, to keep dust and debris out of the carburetor.

Fitment & Compatibility

Before buying, confirm your engine model and filter number. This set directly replaces OEM part 496894 (main filter) and 272403S (pre-filter). It fits Briggs & Stratton engines with numbers 493909, 5053B, 5053D, 5053H, 5053K, 4142, and 4139. Also compatible with John Deere LG496894JD and LG496894S, and Craftsman models like LT 1000, 24151, and 917.374356. Measure your existing filter—this main filter is roughly 4.5” x 4” x 1.5” (pre-filter is foam). If your engine uses a different base or air cleaner housing, it won’t work. Check your engine’s model number (stamped on the valve cover or cooling shroud) for exact match.

Key Things to Know

• Easy swap: No tools required—just snap out the old filter, clean the housing, and press in the new one. Takes under 5 minutes.
• Pre-filter matters: The foam pre-filter catches larger particles and extends main filter life. Don’t skip it, especially in dusty conditions.
• Quality note: This is an aftermarket set, but at 4.7 stars from over 1,200 reviews, it’s widely trusted. Some users note the foam pre-filter may be slightly thinner than OEM—still functional.
• Common gotcha: If your mower runs rough after installation, check that the pre-filter isn’t blocking the air intake. Also, ensure the main filter seats fully—a gap lets dirt in.

Should You Buy It

If you own a Briggs & Stratton 12.5–17 HP engine in a John Deere or Craftsman rider, and your filter number matches, this is a solid, budget-friendly choice. It’s reliable, easy to install, and has proven performance for routine maintenance. Skip it only if you need a genuine OEM part for warranty or specific tolerance requirements.