Abstract: A shaft profile is provided for an outboard drive. The shaft profile includes a base body extending along a longitudinal axis, the base body including a receiving space configured to receive a shaft of the outboard drive; and at least three support ribs extending in a direction of the longitudinal axis and configured to radially guide the shaft, the at least three support ribs arranged on an inner side of the receiving space.

Abstract: A rear cap is provided for forming a component of a housing of a drive unit. The rear cap includes a cover section that closes the housing at a rear and includes a propeller shaft opening that defines an axial direction and through which a propeller shaft of the drive unit is guided out of the housing; and a hollow-cylindrical mounting section that, as seen in the axial direction, is arranged on a side facing away from the propeller shaft opening. The mounting section has a cylindrical mounting surface with a mounting thread, such that the rear cap is configured to be screwed onto a corresponding housing-side thread of the housing.

Abstract: A boat drive is provided for driving a boat. The boat drive includes a motor nacelle with a housing. At least one attachment retainer is provided on the housing for receiving an attaching part in a form-fitting manner.

Abstract: An outboard drive is provided having a fastening device for fastening the outboard drive to a boat. The fastening device includes a fastening unit and a rocker unit that can be pivoted relative to the fastening unit. A lever unit is arranged on the rocker unit, by means of which lever unit the rocker unit can be positioned in at least three different pivot positions with respect to the fastening unit. Furthermore, at least three different steering angle ranges of a drive unit relative to the fastening device can be adjusted by switching an adjustment part. Furthermore, the outboard drive can be converted between a pinning steering mode and a remote control steering mode.