Mercury Gimbal Block Anode Magnesium | Martyr CM821631M Trim Tab Controls Non yellowing

Non yellowing

Long thread reach plug

Kit includes (2) Sierra 18-5205 condensers and (2) Sierra 18-5156 points

Knock Sensor | Crusader R020029

3 mounting screw holes

Mercury Gimbal Block Anode Magnesium | Martyr CM821631M Trim Tab Controls Non yellowingMercury Gimbal Block Anode Magnesium Martyr CM821631M Mercury Gimbal Block Anode Magnesium Martyr CM821631M Mercury Gimbal Block Anode Magnesium Mercruiser gimbal block anode current design Magnesium anode for use in fresh water applications Fits R, MR, Alpha One and Alpha One Gen II Fits Bravo I, II, III, X, XR and XZ drives Magnesium aftermarket replacement for Mercury 97 821631T3 Early design see p n CM43994M For Zinc see p n CM821631Z For Aluminum