1、Fitment: Shift cable tool is replacement for Mercruiser Alpha One Gen I II MC-1, please confirm whether your model is applicable before buying. 2、OE Number: The part numbers for reference are 91-12037, 90110, 18-9806E, please confirm whether it is consistent with the OE you need. 3、Function: Shift cable tool is designed for installing and removing shift cable jackets in the bell housing, and also for installing removing the shift cable. 4、Tough Material: This tool is made of super tough medium carbon steel, CNC process precision manufacturing, sturdy, impact resistant and wearproof for long term reliable performance. 5、Ease of Use: The shift cable tool socket simplifies installation and removal processes, making maintenance tasks more efficient and straightforward.