Premium Keyster carb kit contains MJ#127.5 + #117.5 [these carbs use different jets left and right], PJ#45, Viton rubber-tipped needle valve and seat/o-ring [and filter], 4HZ20 jet needle and Y-0 emulsion tube, float bowl gasket, pilot mixture screw with spring/washer/o-ring, bowl drain screw, screws for carb top, float bowl, float valve retainer plate, and link rails between the carbs [13 screws in total] various o-rings between the carbs