Briggs & Stratton Air Filters
Genuine Briggs & Stratton air filters protect engines from abrasive dust, dirt, grass clippings preventing premature wear on cylinder walls, piston rings, valves. We hold air filters in stock and sell worldwide. Three main filter types include paper pleated elements trapping fine particles through microscopic pores, foam filters saturated with engine oil capturing debris, dual-element systems combining foam pre-cleaners with paper cartridges providing superior protection. Replace paper filters every 25 hours or seasonally—dusty conditions require more frequent replacement. Clean foam pre-cleaners every 25 hours, replace paper cartridges every 100 hours dual-element systems. Genuine filters provide exact fit ensuring proper sealing preventing unfiltered air bypass damaging engines.
Available Briggs & Stratton Air Filters
Air Filter Cartridge
491588S
Briggs & Stratton
£6.20
In Stock
Air Filter Cartridge
805113
Briggs & Stratton
£19.30
In Stock
Air Filter Cartridge
392308S
Briggs & Stratton
£18.80
In Stock
Air Filter Cartridge
792101
Briggs & Stratton
£26.40
In Stock
Gasket Air Filter
795629
Briggs & Stratton
£3.60
In Stock
Air Filter Cartridge
393957S
Briggs & Stratton
£21.30
In Stock
Air Filter Cartridge and Pre Filter
797033
Briggs & Stratton
£16.90
In Stock
Air Filter Cartridge
691667
Briggs & Stratton
£29.50
In Stock
Air Filter Cartridge
494511S
Briggs & Stratton
£14.25
In Stock
Air Filter Cartridge
594201
Briggs & Stratton
£18.80
In Stock
Air Filter Cartridge
491021
Briggs & Stratton
£26.90
In Stock
Air Filter and Pre Filter
796970
Briggs & Stratton
£13.30
In Stock
Frequently Asked Questions
What's the difference between foam and paper air filters?
Paper filters use pleated paper with microscopic pores trapping fine dust particles on outer surface—single-use disposable design requires replacement when dirty. Foam filters use oil-saturated polyurethane foam capturing debris throughout foam structure—reusable design allowing washing, drying, re-oiling multiple times before replacement. Dual-element systems combine both types—outer foam pre-cleaner catches large debris extending inner paper filter life, providing superior protection dusty conditions. Paper filters excel normal conditions, foam filters handle extremely dusty environments like mulching or sandy soil. Replace foam filters when torn, brittle, or cleaning no longer removes embedded dirt effectively.
How often should I service dual-element air filters?
Dual-element filters require different maintenance intervals for each component. Clean foam pre-cleaner every 25 hours or seasonally—wash with soap and water, dry completely, re-oil with engine oil before reinstalling. Replace inner paper cartridge every 100 hours when foam pre-cleaner present protecting paper element. Without pre-cleaner replace paper cartridge every 25 hours matching foam-only filter intervals. Dusty conditions require more frequent pre-cleaner cleaning—potentially multiple times between paper filter replacements. Inspect both elements during oil changes. Neglecting pre-cleaner allows excessive dirt reaching paper filter prematurely shortening cartridge life, whilst ignoring dirty paper filter bypasses fine filtration damaging engine.
What are the symptoms of a clogged air filter?
Hard starting especially when engine warm—restricted airflow creates overly rich fuel mixture. Loss of power struggling to cut thick grass or climb slopes. Black smoke from exhaust indicating incomplete combustion from insufficient air. Increased fuel consumption as engine works harder compensating for poor airflow. Rough running, surging at idle, or hesitation under load. Engine overheating from inefficient combustion generating excessive heat. Visible dirt buildup on filter element when inspected. Replace or clean filter immediately when symptoms appear preventing engine damage.
Can I clean and reuse paper air filters?
Never attempt cleaning paper filters—they're single-use disposable elements. Blowing compressed air forces dirt particles deeper into paper pores damaging filtration media, creating pathways for dust bypassing filter entirely. Tapping removes only surface debris whilst embedded contamination remains trapped. Washing paper filters destroys paper fibres eliminating filtration capability. Briggs & Stratton genuine paper filters last 1.5 times longer than aftermarket imitations. Replace paper filters every 25 hours or annually—dusty conditions require replacement every 10-15 hours. Cost of new filter far less than repairing engine damaged by inadequate filtration.
How much oil should I use on foam air filters?
Foam filters must be oiled or engine damage occurs—dry foam traps only largest particles allowing fine dust entering engine. Saturate foam completely with fresh engine oil or Briggs & Stratton Air Filter Oil. Wrap in clean cloth squeezing firmly removing excess oil—filter should feel uniformly tacky not dripping wet. Excess oil drawn into engine causes smoking, fouled spark plugs, carbon buildup. Insufficient oil fails trapping fine dust accelerating cylinder wear. Properly oiled foam appears evenly saturated throughout without pooling liquid. Never use motor oil lacking proper tackifiers—specialized foam filter oil provides correct viscosity capturing particles whilst maintaining airflow.