Mercury - Fuel Pump Kit FourStroke Series Composite & Stainless Steel 892267A51. Overview. There is a certain peace that settles in when your engine fires up without hesitation. You know the sound-that smooth, steady hum that tells you your setup is dialed in and ready for whatever the day brings. That kind of confidence does not happen by accident. It comes from using gear that simply works every time, especially when you are miles from the dock and the water starts to feel a little bigger arou