Aftermarket Volvo Penta 838929 Zinc Anode Martyr CM838929Z Aftermarket Volvo Penta 838929 Zinc Anode Martyr CM838929Z Replaces Volvo Penta part number: 838929 Suits many Volvo Penta engines Anode material: Zinc (for saltwater use) MSRP: Was: Now: $6.75 Add to Cart