Overview

• Manufacturer: Briggs & Stratton
• Product type: Genuine Briggs & Stratton OEM foam air filter element
• Purpose: Filters intake air while maintaining sufficient airflow to the engine, protecting the carburetor and internal components from dirt and debris
• Fit and reliability: Designed to match 270843S specifications for precise fit and dependable performance
• Pack option: 4-pack SKU 4134 for routine maintenance across multiple machines or service intervals

Key Features

• Part Numbers: 270843S (individual filter), 4134 (4-pack)
• Type of machine: Briggs & Stratton small petrol engines with foam air cleaner housings; especially single-cylinder configurations
• Installation notes: Replace within the foam air cleaner housing, verify a proper seal, and ensure the filter matches the engine code tag and current filter in use; the 4-pack enables scheduled maintenance without frequent reordering
• Filtration details: Foam filtration designed to capture dirt while preserving adequate intake air for efficient combustion
• Engine protection: Helps prevent carburetor blockages and reduces internal wear, supporting smoother starts and steady operation

Compatibility

• Single-cylinder Briggs & Stratton engines in the 550E / 551E / 552E series; 550EX / 551EX / 552EX variants that use foam air cleaner housings
• Additional fitment notes: 600-series single-cylinder engines with compatible filter housings; some 700–825 series engines may use the 270843S specification
• Alternative part numbers: 270843S (individual), 4134 (4-pack)
• Important: Fitment depends on the engine model number and air cleaner housing design; verify with the engine code tag and current filter to confirm match