Mechanical fuel pump for MerCruiser engines For 50 years Sierra has been producing parts engineered to meet or exceed the specifications of marine engine manufacturers and has gained the confidence of engine manufacturers and boat builders to a point of supplying them with OEM parts. Boaters can be assured a Sierra part will fit and restore function. This mechanical pump replaces several pumps found on MCM/MIE 330, 7.4L, 454 Mag, 370, 400, 420, 425, and 440 engines. It produces 6-8 PSI and meets manufacturers specifications for approved applications. Included mounting gasket makes installation straight forward. Key Features Engineered to meet or exceed OEM specifications Includes mounting gasket for easy installation Replaces MerCruiser 812454A1, Mallory 9-37426 and many others Backed by SeaStar Solutions Two-Year Limited WarrantySee our Engine Parts Selector to confirm this fuel pump is right (or to find the correct one) for your engine Fits MerCruiser Stern Drive 97399 97399A2 812454A1 812454A3 862048A1 Fits Mallory 9-35426