Mercury - Transom Seal Repair Kit Sterndrives 8M0095485. Overview. If you've had a Bravo or Blackhawk drive long enough, you already know the bellows and seals don't stay perfect forever. They sit right where the heat, vibration, and movement all meet, so sooner or later they start cracking or letting a little moisture sneak in. This kit gives you everything you need to reseal the transom opening properly-new bellows, clamps, fittings, gaskets, the whole stack. It's not the flashiest job, but it