Abstract: A fuel pump brushless direct current motor (100), comprising: a housing assembly (1), a stator assembly (2), and a rotor assembly (3). The rotor assembly (3) includes a shaft (4), a pair of magnets (5), a sleeve ring (6) and an over molding structure (7), the sleeve ring (6) is provided over the pair of magnet (5) for shielding the pair of magnets (5) thereby preventing wear and tear of the pair of magnets (5), and the shaft (4), the pair of magnets (5), sleeve ring (6) are over molded via the over molding structure (7) for providing a protection from the set of external factors. The rotor assembly (3) include a slotted spring pin (10) for increasing torque strength and extending a cyclic life and said slotted spring pin (10) facilitates in reinforcing a drive dog area (11), thereby providing strength to the drive dog area (11).