Mercury – Primer Bulb | Fuel System Component | Black Rubber | 8M0052976Mercury Primer Bulb Fuel System Component Black Rubber 8M0052976 Overview If youve spent any time around outboards, you know how good it feels when the engine fires up on the first try. That little moment of reliefwhen the motor catches cleanly and you can ease away from the dockoften comes down to simple, dependable parts doing their job. The Mercury 8M0052976 Primer Bulb is one of those quiet heroes. With every squeeze, it sends fuel forward with a