Shakespeare Style 5912 0.6 ft. (0.30 M) VHF Marine Band Rubber Duck Antenna Designed especially for small boat applications needing only short range communications, the Style 5912 is a small, space-saving antenna that attaches and detaches with ease, once the included Flush Mounting Kit has been...

The Sierra 18-2381 Upper Drive Unit Cap is interchangeable with the following: GLM 28400, Mallory 9-78121, Mercruiser 94998A2, 9-4998A4, 94998A1, 94998A3. Each Sierra product meets or exceeds the original equipment part it replaces.