Mariner Mercury 30HP 40HP 60HP 75HP 90HP 100HP 115HP Oil Tank Vent Cap Outboard
75hp / 90hp Three cylinder, triple carb. 40hp / 50hp / 60hp Three cylinder, triple carb. 30hp / 40hp Twin cylinder, single carb. 100hp / 115hp / 125hp Four cylinder, four carb. Fits two stroke models with oil tank under the cowl.