Mercury - Knock module - 8M0154749 Mercury-15HP-EFI-2011 Option of a 'fan only'

Option of a 'fan only' setting

Lasts up to 50% longer in harsh saltwater conditions

The Yamaha Combination Tachometer-Trim Gauge Black Bezel Black Face | N80-8350T-30-00 combines tachometer and trim information in one four-inch backlit Yamaha gauge

it keeps exhaust gases flowing out the back

you’re protecting not just the engine — but the investment

Mercury - Knock module - 8M0154749 Mercury-15HP-EFI-2011 Option of a 'fan only'This product has been superseded by: 8M0154747 Knock moduleWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.