This listingis for a SEI / Mercruiser Alpha 1 1972-1990 Upper Unit With 9 9/16th New Style Input Yoke. Replaces OEM Number 9412A23. Available with the following ratios: 3.0L 4 CYL 1.94 Ratio, 4.3L V6 1.81 Ratio, 5.0L V8 1.62 Ratio and 5.7L V8 1.47 Ratio. Please choose ratio above. Will not work for Alpha 1 Gen II drives. Replaces R, MR, Alpha One lowers from 1972-1990. Up to 300 HP. Three year fault free warranty (click HERE for details).
SHIPPING: Additional shipping fees to Alaska, Hawaii, US Territories, or International Shipping will be calculated after checkout. You will receive an email and a PayPal money request for the additional shipping charges at the email address provided. (Some items are excluded from international shipping)
If you have any questions, please contact us through e-mail at customerservice@marinepartswarehouse.com. Please provide your engine model number to help confirm compatibility.
