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Discover the Briggs & Stratton 1-3/4" Vented High-Dome Gas Cap, engineered to seal and ventilate fuel tanks on compact engines. Crafted from durable metal with a reinforced liner, this cap delivers a tight, leak-proof fit while allowing excess pressure to escape, protecting your engine’s performance.
Why it matters: The vented design prevents fuel spillage and vapor buildup, extending engine life and ensuring reliable operation during lawn care or power-generation tasks. Its high-dome profile simplifies refueling, reducing the chance of mis-alignment or over-filling.
Key Features & Benefits:- Precise 1-3/4" diameter: Engineered to match Briggs & Stratton MAX and Quantum models for a perfect seal.
- Vented high-dome construction: Allows pressure release while maintaining fuel containment, ideal for outdoor equipment.
- Integrated liner: Provides extra protection against corrosion and fuel seepage for lasting durability.
- Compatible with 3.5‑6 HP engines: Fits Quantum series, Max series, and Europa series engines ranging from 3.5 to 6 horsepower.
- Direct replacement for part No. 397974: Seamlessly swaps into existing setups without modifications.
Ready for action: Upgrade your small engine with this reliable fuel cap and experience smoother refueling, reduced maintenance, and enhanced engine protection. Whether you’re powering a mower, generator, or pressure washer, this gas cap ensures your equipment runs at peak efficiency.