Outboard Fuel Primer Bulb 4 sizes 6 or 8 or 10 or 12mm hose

3 sizes :

Inline rubberized fuel bulb with greater flexibility in all weathers.

For the 6/8/10mm units we have kept with the American branded that has higher capacity and stainless steel spring within the check valve. They are a priming pump designed for fuel use and the simple squeezing action in conjunction with the one way valve creates a suction and thus priming effect. The 12mm unit simply has 12mm hose tails and is made offshore.

1/4" (accepts 6mm internal diameter hose) generally suits outboards to 20hp

5/16" (accepts 8mm internal diameter hose) generally suits outboards to 90hp

3/8" (accepts 10mm internal diameter hose) generally suits outboards above 90hp

1/2" (accepts 12mm internal diameter hose) occasionally used on industrial pumps