Mechanical fuel pump for GM Big Block V8 based marine engines. Sierra offers parts engineered to meet or exceed the specifications of marine engine manufacturers and has gained the confidence of the marine industry. Boaters can be assured a Sierra part will fit and restore function. This mechanical pump replaces pumps found on GM based Big Block V8 Crusader marine 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 Compatible with flange ID 41418, M73024 Backed by SeaStar Solutions Two-Year Limited Warranty 18-7212 Application Guide ApplicationOEM Part NumberCrusader21141GLM77108The Sierra Engine Parts SelectorIn addition to fuel pumps, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see ourEngine Parts Selector, where you can search by engine make, model and year of manufacture.