Trapped cutline gasket for external side mirror

A gasket for an external side mirror, comprising:

• a base having a top surface, a bottom surface, and an edge surface about a perimeter of the gasket, wherein the perimeter of the gasket defines a first curved region and a second curved region, the first curved region having a larger radius of curvature than the second curved region;
• a lip integral with the base and extending downward from the bottom surface about the perimeter, at least a portion of the lip located such that it is configured to seal against a base assembly of a vehicle;
• a plurality of hooks integral with the base about the perimeter and configured to engage a flange of a housing bracket of the external side mirror, the hooks having a first portion extending transverse from the edge surface, a second portion extending upward and transverse from the first portion, and a top portion extending inward from the second portion, the top portion having a lower surface configured to contact the flange of the housing bracket of the external side mirror;
• and
• a strap extending from the top surface at two locations, the strap continuous between the two locations and configured to engage a curved corner of the housing bracket.

An external side mirror assembly for a vehicle, comprising

• a lower cover;
• a skull cap connected to the lower cover and having a lower edge configured to at least partially define a cutline gap between the skull cap and a base assembly of the vehicle;
• a housing bracket within an interior of the connected lower cover and skull cap, the housing bracket having a lower surface and an upper surface;
• and
• a gasket removably mounted to the housing bracket, wherein the gasket includes an upper surface contacting the lower surface of the housing bracket, wherein the gasket is aligned with the cutline gap to seal the cutline gap with respect to the interior of the connected lower cover and skull cap;
• wherein the lower cover has a curved surface that curves inwardly toward the interior, and the skull cap has a curved surface that curves outwardly away from the interior, and the gasket includes a first curved region aligned with the curved surface of the lower cover, a second curved region aligned with the curved surface of the skull cap, and a central void between the first and second curved regions, and wherein the gasket includes a strap extending from the upper surface at two locations of the first curved region and continuous between the two locations, wherein the strap wraps around a portion of the upper surface of the housing bracket.