Bellows Kit for Mercruiser Alpha One Gen.II Transom made from marine-grade rubber designed for and resistance to harsh marine environments.This kit is intended for use with Mercruiser Alpha One Gen.II stern drives to help maintain engine performance and support.It includes 1 Shift Bellows 1 Exhaust Bellows 1 U-Joint Bellows and 4 Stainless Clamps providing a complete solution for bellows replacement.The materials are capable of withstanding temperatures up to 105℃ making the kit suitable for various marine conditions.Installation is straightforward and does not require specialized tools.Compatible with multiple part numbers including 74639A2 18654A1 8M0124227 74639 31659 32734 32734A3 816431A1 and 18-2747.The components are engineered to fit with existing drivetrain parts for consistent functionality. This replacement part is independently produced.All brand references are for compatibility demonstration only.