This rear cylinder coolant union is a high-quality, OEM part designed for the Aprilia RSV Mille 1000R Factory motorcycle. Made of durable aluminium, this union is designed to fit perfectly into the rear of your bike without any modification needed. It comes in a stylish silver colour, and is manufactured in Italy . This unit is compatible with multiple years of the Aprilia RSV Mille 1000R Factory, including 2005, 2004, 2003, 2002, 2001, and 2000. Upgrade your motorcycle's performance with this reliable rear cylinder coolant union.