Briggs & Stratton Air Filter - 27987S

Product Details & Features

Keep your small engine protected and performing at its best with this genuine Briggs & Stratton air filter (27987S) — an essential maintenance part that helps ensure clean air reaches your engine’s carburettor for reliable combustion and smooth operation. 

This 27987S air filter is a foam air cleaner element designed specifically for Briggs & Stratton horizontal shaft engines in the 2 – 5 HP range. Its open‑cell foam construction effectively captures dust, dirt and debris before they enter the engine’s intake, helping reduce wear and improve performance. 

Key Features:

• Genuine OEM Quality: Manufactured to Briggs & Stratton’s original specifications for reliable fit and long‑lasting performance. 

• Efficient Filtration: Foam media traps harmful particles while maintaining good airflow for efficient engine operation. 

• Direct Replacement: Designed to replace older part number 27987 on supported engines. 

• Ideal Dimensions: Approximately 143 mm (5‑5/8″) long × 114 mm (4‑1/4″) wide × 38 mm (1‑1/2″) high, fitting many classic small engines. 

• Easy Installation: Simple drop‑in design makes filter replacement quick and tool‑free during routine servicing. 

Why It Matters:
A clean air supply is vital for proper combustion and fuel efficiency. Replacing a worn or clogged air filter with this genuine 27987S part helps protect the carburettor and internal engine components from abrasive contaminants, supports smoother starts and improves overall engine longevity. 

Perfect for seasonal maintenance or tune‑ups, this air filter is ideal for walk‑behind mowers, garden machines and other outdoor equipment powered by Briggs & Stratton horizontal engines.