Abstract: A fluid pump having manually operable and power operable sections 10a, 10b mounted within a unitary pump body 12 that defines at least one suction and one discharge port 14, 16. The manually operated section comprises a body section 12a defining a bore 20a that slidably supports a piston 24 for reciprocating motion that includes a piston rod 24a that extends outside of the body section and is operatively connected to an actuatable arm 60 pivotally atttached to the pump body. Flow passages 34, 42 including a check valve 32 communicate the suction port 14 with one portion 20a of the piston bore; another flow passage 49 communicates a discharge side 20b of the piston bore with the discharge port. The power operable pump section comprises another pump body section 12b that defines a pair of axially aligned bores 82 that slidably support pistons 80 and an eccentric 84 including a drive shaft 130 rotatably mounted within the pump body disposed intermediate and operatively engageable with the pistons.