Mercruiser Alpha One Gen I Lower Unit Replacement 1972-1990 – 13 Spline Driveshaft, 13-21 Tooth Count, Up to 300 HP

Mercruiser Alpha I Lower Replaces Mercruiser Alpha One The Mercruiser Alpha I Lower is designed to replace the original Mercruiser Alpha One lowers from 1972-1990, providing exceptional performance and reliability. This lower unit features a robust 13 spline driveshaft and a tooth count of 13-21, making it compatible with engines up to 300 HP. With this component, boaters can ensure their vessels operate smoothly and efficiently. This product plays a crucial role in maintaining the functionality of your marine engine by facilitating power transfer between the engine and propeller. By using the Mercruiser Alpha I Lower, you can enhance your vessel’s performance while ensuring longevity in its operations. Features & Specifications: Replaces: R, MR, Alpha One lowers (1972-1990) Spline Count: 13 Spline Driveshaft Tooth Count: 13-21 Teeth Horsepower Rating: Up to 300 HP Email Notifications: Current ship date notifications provided via email. Error-Free Installation:No modifications required for installation. Quick Overview : Feature Details Product Name Mercruiser Alpha I Lower Compatibility Replaces Mercruiser Alpha One (1972-1990) Driveshaft Spline Count 13 Splines Tooth Count 13-21 Teeth Max Horsepower Rating Up to 300 HP If you’re looking for quality replacement parts that guarantee durability and top-notch performance, consider adding theM ercuriser A lpha I L ower t o y our cart today . W ith competitive pricing , industry-leading warranties , an d fast shipping options available , you’ll be well-equipped for all your boating adventures . Don’t miss out on enhancing your vessel’s capabilities! Brand Name: SEI Marine OEM Part Number: 8951A43 Search Terms: Mercruiser Alpha One Lower Unit, Mercruiser Lower Unit Replacement, 1972-1990 Mercruiser Parts, 13 Spline Driveshaft Replacement, Alpha One Gen I Lower Unit, Marine Drive Shaft 13 Spline, Mercruiser 13 Tooth Count Gear, Up to 300 HP Lower Unit, R MR Alpha One Replacement Parts, OE# 8951A43 Compatible Parts.