Complete zinc anode kit for 1984-1990 Mercruiser MR & Alpha One drives.

Kit Includes:

00806BIS Gimbal Housing Block,

00800 Trim Tab Short,

00807 Nut for Outdrive (2)

Replaces:

Sierra: 18-6150Z

Martyr part #'s: CM31640 Trim Tab, CM55989 Gimbal Housing (2), CM821631 Gimbal Housing

US Military Grade

Zinc Is for Saltwater Use