Shift Cable Bellows 74639A2- For All MerCruiser Stern Drives Using a Drive Unit Shift Cable Flexible, ribbed composite bellows to keep water from shift cable entry point. Shift cable bellows 74639A2 is for all MerCruiser stern drives using a drive unit shift cable. The bellows helps keep water from shift cable entry points to protect your drive mechanism. Easy to install using common tools. Kit includes hose clamps to secure both ends of the bellows Mercury Quicksilver 74639a 2 - Bellows is equivalent to parts: 18-2753-2 Sierra Marine 18-2753-2 Sierra Marine 9A-108-04K SEI Marine 9A-108-04K SEI Marine REC74639Q02 Recmar Marine MR-915 OBR Red Rhino MR-915 OBR Red Rhino 74639Q02 Mercury Marine 74639Q02 Mercury Marine 9-72705 Mallory Marine 9-72705 Mallory Marine 89080 GLM 89080 GLM