36905 Lawn Mower Air Filter, Air Filter Replacement 36905 for 22 GTS 6.5HP 20016 20017 20018 Lawn Mower 751-11122 195EA with Spark Plug (Pack of 2)

What It Is

This is a replacement air filter (and spark plug) set for gas lawn mowers, specifically designed for 22-inch GTS models with 6.5HP engines. It keeps dirt and debris out of the carburetor while also providing a compatible spark plug for ignition maintenance.

Fitment & Compatibility

Before buying, confirm your mower uses a 22-inch deck with a 6.5HP GTS engine. This filter replaces OEM part numbers 36905, 751-11122, and 195EA. It fits models like the 20016, 20017, and 20018 (check your mower’s model plate under the seat or rear frame). Measure your old filter’s dimensions—this one is about 3.5" x 2.5" x 1.5". The included spark plug is a standard J19LM or equivalent. If your mower uses a different plug gap (usually 0.030”), verify before installation.

Key Things to Know

• Quality: Aftermarket, not OEM. Most users report it fits and seals well, but inspect the foam pre-filter (if included) for thickness—some are thinner than originals.
• Installation: Easy, no tools needed for the filter—just remove the cover, swap the old filter, and reattach. The spark plug requires a 5/8” socket and torque to about 20 ft-lbs.
• Common gotcha: The foam element may be dry; lightly oil it with filter oil (or motor oil) if your mower runs in dusty conditions. Don’t over-oil.
• Pack of 2: You get two filters and one plug—good for one full service plus a spare.

Should You Buy It

If you own a 22-inch GTS 6.5HP mower (like the 20016/20017/20018) and want a budget-friendly maintenance kit, this is a solid pick. It’s not OEM but works fine for regular use. Skip it if your mower has a different engine size or if you demand exact OEM specs—buy the genuine part instead.