593260 798452 Air Filter with Spark Plug Replacement for Briggs Stratton Engines 500EX 550E 625EX 725EXi, Troy-Bilt TB110 TB115 TB200 TB230 TB330, Toro Recycler 22 inch 20332 20333 20334 Lawn Mower

What It Is

This is a combo kit containing an air filter and spark plug designed for common Briggs & Stratton engines found on mid-size walk-behind mowers (500EX through 725EXi series). It’s a direct replacement for routine annual maintenance on Troy-Bilt, Toro, and other mowers using those engines.

Fitment & Compatibility

• Engine check first: This kit fits Briggs & Stratton 500EX, 550E, 625EX, and 725EXi engines. Do not buy if your mower has a different engine series (e.g., 450E, 850EX).
• Mower models: Confirmed fit for Troy-Bilt TB110, TB115, TB200, TB230, TB330; Toro Recycler 22-inch models 20332, 20333, 20334.
• Measurements: The air filter is approximately 4.5 x 3 x 1.5 inches; the spark plug is a standard 14mm thread, 0.030” gap. If your mower uses a different plug gap or thread size, this won’t work.
• OEM vs aftermarket: This is an aftermarket kit, not genuine Briggs & Stratton. It matches OEM part numbers 593260 (air filter) and 798452 (spark plug), but quality may vary slightly.

Key Things to Know

• Installation is simple: No tools needed for the air filter (snap-on cover); spark plug requires a 13/16” socket and gap check (0.030”).
• Common gotcha: Some users report the spark plug may arrive pre-gapped at 0.030”, but always verify with a gap tool—incorrect gap can cause misfire or hard starting.
• Air filter quality: The foam element is slightly thinner than OEM in some batches, but still filters adequately for residential use. Replace annually or after 25 hours of use.
• Dual purpose: Buying this kit is cheaper than buying filter and plug separately, and saves a trip to the store.

Should You Buy It

If you have a compatible Briggs & Stratton engine (500EX–725EXi) and want a quick, affordable one-stop maintenance kit for your Troy-Bilt or Toro mower, this is a solid choice. It’s not for commercial duty or high-hour use, but for a typical homeowner doing one annual tune-up, it delivers good value at $10.