The Mercury Flame Arrestor (863200) plays a vital role in keeping everything running smoothly. Designed to fit GM 4-cylinder, V6, and V8 marine engines, this component helps prevent potentially dangerous backfires from igniting fuel vapors while ensuring clean, unrestricted airflow to the intake system. A well-functioning flame arrestor is an essential safeguard, especially in enclosed engine compartments where fuel fumes can accumulate.. Built for Performance & Safety. Fire Prevention - Stops flames from escaping through the intake, reducing the risk of fuel vapor ignition.. Unrestricted Airflow - Allows proper air intake to support combustion without compromising efficiency.. Corrosion-Resistant Design - Built to withstand the harsh marine environment and resist degradation over time.Specifications:. Part Number: 863200. Material: High-quality metal mesh for flame suppression. Function: Enhances engine safety while maintaining optimal performance. A clogged or worn flame arrestor can