Foam Air Filter Briggs & Stratton #27987S | ESF101-001

The ESF 101-001 Air Filter is a durable, high-performance replacement filter engineered to protect small gasoline engine systems by capturing dirt, dust, and debris before it enters the carburetor and combustion chamber. Designed to match OEM specifications and fit a variety of vertical-shaft small engines (typically 3 HP to 3.5 HP and compatible series), this air filter helps maintain peak engine performance and extends the life of outdoor power equipment such as lawn mowers, tillers, and other machines. Part of the extensive ESF parts lineup from Équipements ESF — a long-established Canadian supplier of OEM and aftermarket parts — the 101-001 delivers reliable filtration and straightforward maintenance support.

• OEM-Equivalent Fit: Designed to replace part number 27287S and fit vertical small-engine models in the 3 HP–3.5 HP range.
• High-Efficiency Filtration: Captures airborne contaminants before they reach sensitive engine components, reducing wear and clogging.
• Robust Construction: Durable filter media and sturdy frame stand up to challenging outdoor working environments.
• Quick, Direct Replacement: Easy to install during routine maintenance with no modifications needed.
• Broad Compatibility: Works across multiple engine makes and models that use this size and specification of filter.
• Fits Briggs & Stratton Models: 60000 to 80000 Series, 100200, 111200, 130200, 131200, 140200 & Fits many (2,3,4 & 5 HP) Horizontal. Also fits John Deere AM34963.
• Replace BRIGGS & STRATTON: 27987 27287S; JOHN DEERE: AM34963, LG27987, LG27987S