Key Features

• Genuine Briggs & Stratton OEM replacement part — part number 494559 for precise fit and reliable sealing.
• Secure fuel tank seal — helps prevent leaks, fuel evaporation, and contamination of the fuel system.
• Durable outdoor construction designed to withstand regular use in varied environments.
• Easy screw-on installation with a secure grip for quick servicing and routine maintenance.
• OEM reference 494559 (cross-reference to older 490075) for accurate identification and ordering.

Product Details

• Product Type: Fuel Tank Cap
• Brand: Briggs & Stratton
• Part Number: 494559
• Compatibility: Selected Briggs & Stratton horizontal shaft engines (check model fitment)
• Application: Fuel tank sealing and protection to maintain fuel integrity and system pressure
• Why Choose This Fuel Cap: OEM-quality sealing and protection that helps keep fuel clean, reduces evaporation loss, and supports reliable engine performance for lawn, garden, and outdoor equipment

Compatibility

• Fits Briggs & Stratton horizontal crankshaft engines in the 3–5 HP range.
• Typical applications include walk-behind lawn mowers, garden tractors and small tractors, pressure washers, and generators with matching fuel tank designs.
• Exact fitment depends on the engine’s fuel tank design; always verify your engine model, series and OEM part number before ordering.
• Cross-reference note: the 494559 cap is also used where older references such as 490075 are specified.