Thrust Ring for Volvo Penta DuoProp

This metal thrust ring is placed between the front and rear propellers of Volvo Penta DuoProp drives. It serves as a precision spacer to ensure the stable positioning of both propellers on the shaft. Suitable for DP280, 290, and DP-A to G series models, in combination with A and B series propellers. High-quality aftermarket replacement for OEM No. 3858458. Always check this ring during installation to prevent direct friction between the propellers.