Air Filter Compatible with Compatible with Honda Models GX100 GCV160 Part 17211-ZL8-003 Briggs Parts 491588 491588S 399959

What It Is

This is a replacement air filter designed for small engines in Honda GX100, GCV160, and select Briggs & Stratton models. It keeps dirt and debris out of the carburetor and cylinder, protecting engine life on walk-behind mowers, pressure washers, and generators.

Fitment & Compatibility

Before buying, check three things:

• Engine model: Fits Honda GX100 (horizontal shaft) and GCV160 (vertical shaft) engines. Also fits Briggs models using part numbers 491588, 491588S, and 399959.
• OEM cross-reference: This filter replaces Honda part 17211-ZL8-003. Confirm your engine’s part number matches or is listed as compatible.
• Physical size: The filter is roughly 3.3 x 2.8 x 1.2 inches. Measure your old filter or the housing opening to ensure it seats properly. Aftermarket filters can vary slightly in foam density or paper thickness—verify it fits snugly without gaps.

Key Things to Know

• Quality vs. OEM: At $5.49, this is an aftermarket filter. It may use slightly different foam or paper media than Honda’s original, but user ratings (4.8/5) suggest reliable filtration for routine use.
• Installation is easy: No tools needed. Remove the air filter cover, swap the old filter, and reinstall the cover. Takes under two minutes.
• Common gotcha: Don’t over-oil if your filter uses foam. Too much oil can restrict airflow or foul the carburetor. If it’s dry paper, never oil it.
• Check the cover seal: After installing, press the cover closed—if it doesn’t snap tight, the filter may be too thick or thin. A loose seal lets unfiltered air in.

Should You Buy It

If you have a Honda GX100, GCV160, or compatible Briggs engine and need a budget-friendly replacement for routine maintenance, this filter is a solid pick. It’s cheap, easy to install, and well-rated—just double-check your engine’s part number and measure the old filter to confirm fit. For heavy commercial use, consider OEM for tighter tolerances.