This ProTorque alternator is designed for use with Mercruiser and other inboard engines. It is an essential component for the ignition and starting system of your boat. The alternator is made by an undisclosed brand and is compatible with various models. This item is part of the Ignition & Starting Systems category and is a must-have for any boat owner. It is perfect for those who are looking to upgrade their current alternator or replace a faulty one. Please note that this item is a closeout and there are no returns.