NGK 3623 BPR6EFS Spark Plugs.

Product Specs:

• Fit’s most multi-port injection and throttle body engines in tournament ski and wakeboard boats.
• Malibu-Indmar Monsoon & Hammerhead engines.
• Gap to .045 on most Indmar Engines that require this spark plug
• Make sure to use anti seize on aluminum cylinder heads (All Hammerheads & Corvette engines)
• Use dielectric grease to avoid spark plug boots from sicking & tearing
• Sold individually

Bakes Resource Library:

• Indmar Spark Plug & Spark Plug Wire Reference Chart (PDF)