Which Primer bulb

[bird]

I have a 2007 Evinrude Etec 150 HO Model E150DHJSU, Serial No 05161005. Need to replace the primer bulb. Current bulb has markings DI 15 127105. Is there a standard size for this model? 5/16, 3/8, etc.

[SEAHORSE]

See a dealer and get the OEM 3/8" primer ball. Make sure all your hoses from the tank to the motor are also 3/8"

[bird]

Is that inside or outside diameter for the hoses

[ChampioNman]

I.D., look for the bulb with the yellow ends.