Sierra 18-6093 Mercruiser Zinc Bearing Carrier AnodeSierra high-quality engine parts are designed to meet OEM specifications. Material: Magnesium; Fits Alpha One Gen II & Vazer drives; Interchangeable with: GLM; 12702; Mercruiser Stern Drive; 97-806105; 806105A1; 97-806105Q1; 97-806105T1; Application:Mercruiser Stern Drive Alpha One Gen II; 1998-2013; s/n 0L100040 & Up; Vazer Drive; 1998; s/n 0W995000 & Up; Vazer Transom; 1998; s/n 0W755000 & Up;