This is the housing for Volvo QL Series model CT-600 bow thrusters. This part was never sold separately by Volvo so there is no part number for it. If you have a CT-600 bow thruster, this is your part. These have been known to corrode and fail but this is a very clean one with a good inner bearing. If you have a bad one your only option is to find a nice one.

These are NLA from Volvo so if you need them, don't hesitate. All of my parts are in stock for immediate shipping.

20 Year Ebay Seller - 40 Year Thruster Installer