Mercruiser Alpha 1 Gen 1 Anode Kit Replacement Martyr CMALPHAGEN1KIT

Anode kit replaces Mercruiser part: 888756Q04

Suits Mercruiser sterndrive:

MR and Alpha One (S/N 6225577 – 0D469828, 1983-1990)

Anode kit includes:

1 x 31640Q4 trim tab anode (Martyr CM31640)

2 x 55989Q9 anode (Martyr CM55989)

1 x 821631Q1 plate anode (Martyr CM821631)

1 x fastening hardware & instructions 

Anode material options:

• Aluminum (for use in salt and brackish water) MIL-DTL 24779C(SH)
• Zinc (for use in saltwater) MIL-DTL-18001L
• Magnesium (for use in freshwater) AZ91D

Why aluminum instead of zinc for salt and brackish water?

• Performs at least 5% better than traditional zinc anodes in salt water;
• Protects 50% longer than traditional zinc anodes; 
• Aluminum is environmentally friendly - it contains 0% Cadmium, a toxic material found in traditional zinc anodes; 
• Meets the US Military Specification MIL-DTL 24779C(SH);
• Weighs 50% less than traditional zinc anodes;
• Are the only anodes proven to be effective in Salt & Brackish water
• Easy installation