Briggs & Stratton 491588S genuine air filter
The 491588S is the genuine flat-panel pleated-paper replacement to compare when your engine’s parts diagram calls for this number. Keeping the right filter ready makes mower-service day easier.
The 491588S is the genuine flat-panel pleated-paper replacement to compare when your engine’s parts diagram calls for this number. Keeping the right filter ready makes mower-service day easier.
- Good for
- Routine air-filter replacement on an engine whose parts lookup specifies Briggs & Stratton 491588S.
- Look elsewhere if
- Your engine diagram specifies another filter, even if this one looks similar or the mower carries the same brand.
- The tradeoff
- Engine series are a starting point; exact engine model and approved part number determine the fit.
Why it earns a look
- Filter format: flat-panel pleated paper
- Manufacturer application: select Quantum, 625-675, 625e, 675e and 725e Series engines
- Package: One genuine air-cleaner cartridge filter
Where it asks for a compromise
- Engine series are a starting point; exact engine model and approved part number determine the fit.
Keep the engine number beside the part number
Briggs & Stratton describes 491588S as a flat-panel pleated-paper cartridge used on select Quantum, 625-675, 625e, 675e and 725e Series engines. Use the exact engine’s parts lookup to confirm the replacement.
A small part to keep ready
Keep a clean replacement with your maintenance supplies and follow the engine manual’s service schedule and fitting procedure. The correct filter needs to seat properly in its air-cleaner housing.
Living with it in the garden
Check the air cleaner at the interval specified by the engine manual.
Replace and seat the cartridge using the approved service procedure.
Your 491588S questions
Can I choose this by the mower’s brand?
Use the engine’s model and approved parts diagram. Briggs & Stratton warns that similar-looking parts can require different replacements.
What filter is included?
One genuine Briggs & Stratton 491588S air-cleaner cartridge filter.
Full specifications, manuals & sources
Model details
- Full model name
- Briggs & Stratton 491588S Genuine Flat Air Filter
- Amazon ASIN
- B0011WP4Q6
- Brand
- Briggs & Stratton
Manuals & product information
Photo sources
Product information checked 2026-10-29. Our assessment uses the linked specifications and manuals; it does not represent a hands-on test. Editorial standards & corrections.