NGK BR2-LM Spark Plug - 5798

This spark plug is specifically designed for MTD 5.5 hp Briggs & Stratton engines. Always consult your engine's manual or compatibility guide to confirm.

The NGK BR2-LM spark plug comes with a pre-set gap of 0.03 inches.

Spark plugs are consumable parts and their replacement interval depends on usage and engine type. As a general guideline, inspect during annual maintenance and replace when worn or if performance issues occur. Refer to your engine's manual for specific recommendations.

While it might seem similar, this plug is specifically engineered for MTD 5.5 hp B&S engines. Using it on incompatible engines can lead to poor performance or engine damage. Always verify compatibility.

The copper core provides excellent thermal conductivity, helping to dissipate heat away from the plug's tip, which reduces fouling and ensures a more stable operating temperature for reliable ignition.

A fouled spark plug has deposits on the electrode, which can prevent it from firing correctly, leading to misfires, rough running, and difficulty starting.

Check the spark plug connection. If the plug is old or shows signs of wear or fouling, replace it with a new NGK BR2-LM (5798).

Ensure the spark plug is properly seated and the ignition wire is securely connected. A faulty spark plug may require replacement.

Verify the spark plug was threaded in by hand first to prevent cross-threading and tightened correctly. Ensure the ignition wire is fully connected.