Overview

Briggs & Stratton OEM part 270579S, sold as a 5-pack under SKU 4104, is a foam air filter element designed for Briggs & Stratton single‑cylinder petrol engines. This genuine OEM filter provides reliable fit and long-term availability, delivering clean intake air to the carburetor for consistent engine performance. The foam filtration captures dirt while preserving airflow to protect against carburetor blockages and internal wear. The five‑filter pack supports multi‑machine maintenance, workshops, fleets, or households with multiple outdoor power tools.

Key Features

• Part Number: 270579S; Pack SKU: 4104; Pack Quantity: 5 filters
• Filtration Type: Foam air filter / air cleaner element; pre‑oiled for immediate use
• Type of machine suitable for: Briggs & Stratton single‑cylinder petrol engines (6–9 hp class, depending on housing)
• Installation tips: Confirm fit by matching housing dimensions or engine code; ensure foam seating in the air‑cleaner housing and replace as a set during maintenance intervals

Compatibility

• : Briggs & Stratton 550E / 551E / 552E series configurations; 550EX / 551EX / 552EX variants; select 600 series single‑cylinder engines
• : Designed for foam air cleaner housings used on Briggs & Stratton engines; verify fit by comparing to existing filter dimensions or engine model code
• : Replaces 270579, 270579S, 4104
• : Walk‑behind lawn mowers, garden tractors, small tillers, generators, and other outdoor power equipment that use Briggs & Stratton foam air cleaner housings