1408315-S Air Filter for Kohler XT650 XT675 149CC Air Filter for Toro 20371 20377 20378 22" recycler Lawn Mower Lawn Boy Huaqvarna 6.5hp 6.75 hp Mower Air Cleaner – 4 Pack

What It Is

This is a 4-pack of replacement air filters (part 1408315-S) designed for small Kohler XT650 and XT675 149cc engines, commonly used on Toro 22" Recycler mowers (models 20371, 20377, 20378), Lawn Boy, and Husqvarna 6.5hp/6.75hp walk-behinds. It keeps dust and debris out of the carburetor for cleaner combustion and longer engine life.

Fitment & Compatibility

• Engine fit: Kohler XT650, XT675 (149cc) – check your engine model number stamped on the valve cover or blower housing.
• Mower fit: Toro 22" Recycler models 20371, 20377, 20378; also fits many Lawn Boy and Husqvarna units with the same Kohler engine. Not universal – verify your mower’s air filter housing shape.
• OEM vs aftermarket: This is a generic replacement, not genuine Kohler or Toro. It matches the size and shape of OEM filter 1408315-S, but quality may vary.
• Measurements: Approximately 4.5" x 3.5" x 1.5" (foam pre-filter + paper element). Measure your old filter or housing opening before buying.
• Deck size: Only relevant if you confirm the engine model – deck size alone (e.g., 22") doesn’t guarantee fit.

Key Things to Know

• Installation: Tool-free – just remove the air filter cover (usually a single wing nut or clip), swap the old filter, and re-secure. Takes under 2 minutes.
• Quality: Users report the foam pre-filter is slightly thinner than OEM, but it still seals fine. Check for gaps around the edges after installation.
• Common gotcha: This filter is not for Kohler Courage or Command engines – those use a different size. Double-check your engine’s displacement (149cc) and series (XT).
• 4-pack value: At $7.99, it’s roughly $2 per filter – cheaper than buying singles. Good for multiple mowers or keeping spares for seasonal changes.

Should You Buy It

Yes, if you have a Kohler XT650 or XT675 149cc engine on a Toro 22" Recycler, Lawn Boy, or Husqvarna mower and want an affordable 4-pack for regular maintenance. It’s a solid budget option for the price, but skip it if you need OEM-spec thickness or have a different Kohler engine series.