The bow light replacement that I first purchased at the marine retail store would have required drilling new holes and filling old holes. I found the exact replacement model at IBoats and the manufacturer included an improved gasket to seal out water. The old my wiring connections were covered with electrical tape and the wiring had corroded. Although the instructions didn't include this information, it's a good practice to make your electric wiring connections using electrical butt ends and sealing the butt end openings with liquid electrical tape for a water tight connection.
