This high-quality spark plug is a great addition to your outboard engine. It is designed to fit Mercury models and comes with the stock number LFR4A-E. The brand of this spark plug is Mercury, and it is a reliable replacement part for your boat's ignition and starting system.

With this spark plug, you can ensure that your outboard engine runs smoothly and efficiently. It is easy to install and is a great choice for anyone looking to replace their old or faulty spark plug. The NGK stock number LFR4A-E is a perfect fit for your Mercury outboard engine.