EMP 1300-00111 Fuel Pump Repair Kit Replaces Mercury 55278A5 and fits Mercury/Mariner 4-cyl, 75 HP outboard fuel pumps. Engineered Marine Products (EMP) is the aftermarket leader in delivering superior parts and accessories to the marine industry for over 40 years. EMP is a premier supplier to Original Equipment Manufacturers for both production and replacement service parts. EMP has earned a loyal following by providing the highest quality products for a wide variety of engine brands. No other aftermarket company is more committed to the level of quality, performance, protection, and all EMP Parts are backed with a 2-Year limited warranty.