Zinc
Transom bracket anode that fits Mercury/Mariner V-6 outboards, V-150/150XR-2
(USA 6616990 and below), V-175 (USA 6618750 and below), V-200 (USA
6055032 and below), V-250/275 Carb (0C101891 and above), and the V-3.4 Litre.

CM89949Z - Zinc Anode - for salt water use. Not recommended for fresh water.
150 / 200 HP
Dimensions:
Length: 279.40mm (11.000in)
Width: 58.42mm (2.300in)
Depth: 59.69mm (2.350in)
Categories: Outboard Anodes, Bar Anode...