A marine propulsion housing arrangement includes an improved construction for inhibiting an influx of water into the housing and for protecting the components thereof. A marine outboard drive comprises a drive unit and at least a swivel bracket that supports the drive unit for pivotal movement with a steering shaft. At least one mount assembly is provided for unifying the drive unit and the steering shaft. The mount assembly includes at least one mount members affixed to the drive unit and a hub member united with the mount member. The hub member is connected to both the drive unit and the steering shaft so as to unify them. A mount cover generally covers both of the mount member and the hub member.