Sierra 18-6066 Gimbal Housing Zinc Anode Replaces 821631Q1
Sierra 18-6066 Gimbal Housing Zinc Anode Replaces 821631Q1, Sierra 18-6066 Mercruiser Gimbal Housing Zinc AnodeFor Use On R/MR/Alpha One (Sterndrive & Transom Assembly 1983-90). Sierra replacement engine parts are manufactured to meet or exceed OEM requirements.Interchangeable with: GLM; 12713; Mercruiser Stern Drive; 97-821631Q1; 97-821631C; 821631A1; 43994A2; 821631B1;