Mercury - Quicksilver Air Filter Intake System Marine-Grade Construction 883037T. Overview. There's a special comfort in hearing your engine breathe cleanly - that smooth whoosh of air as you idle away from the dock or roll into a long stretch of open water. When your outboard is getting the clean air it needs, everything just feels easier. Starts are crisp, throttle response is sharp, and there's a confidence that settles in behind the wheel. That's what a dependable Mercury Marine air filter d