Volvo Penta 3 Piece Folding Prop Zinc Anode Kit | Martyr CM3858399KITZVolvo Penta 3 Piece Folding Prop Zinc Anode Kit Martyr CM3858399KITZ Volvo Penta 3 Pc Folding Prop Anode Kit Zinc CM3858399KITZ Martyr prop anodes protects propeller and propeller hub from corrosion in salt water. Volvo Penta 3 blade folding prop anode Zinc anode for salt water applications Found on many 2 and 3 blade folding props Commonly used in many sail drive applications Mounting screws included Replaces Volvo Penta 3858399 For aluminum see p n