{"product_id":"brand-new-mercury-mercruiser-alpha-one-gen-ii-complete-sterndrive-assembly-upper-and-lower-unit-1969-1990","title":"Mercury Mercruiser Alpha One Gen II Complete Sterndrive Assembly (Upper \u0026 Lower Unit, 1991-Current)","description":"\u003cp dir=\"auto\"\u003eThis is a \u003cstrong\u003ebrand new\u003c\/strong\u003e genuine Mercury complete sterndrive assembly for Mercruiser Alpha One Generation II, including both the upper driveshaft assembly (upper gearcase) and lower driveshaft assembly (lower gearcase\/unit). Compatible with models from 1991 to present (serial numbers 0D494570 \u0026amp; higher). It includes a 2\u003cstrong\u003e-year manufacturer warranty\u003c\/strong\u003e for peace of mind and comes complete with a water pump installed.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eAvailable Gear Ratios:\u003c\/strong\u003e Please select your required gear ratio below:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.47:1\u003c\/strong\u003e – Commonly used with higher HP V8 engines (e.g., 5.7L\/350 and up, 220+ HP models)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.62:1\u003c\/strong\u003e – Commonly used with 4.3L V6 or lower HP V8 engines in standard applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.81:1\u003c\/strong\u003e – Commonly used with some 4.3L V6 models, especially in heavier boats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.00:1\u003c\/strong\u003e – Commonly used with 3.0L 4-cylinder engines (130-135 HP); this stronger ratio replaced the earlier 1.94:1 starting around 1998\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e This item is typically not stocked in-store and ships directly from the manufacturer for guaranteed freshness and quality.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eImportant Fitment Information:\u003c\/strong\u003e To ensure you receive the correct complete sterndrive with the \u003cstrong\u003eproper gear ratio\u003c\/strong\u003e and full compatibility, please provide your sterndrive serial number and engine details (HP, cylinders, model\/year) from the transom bracket. We're here to help verify the exact match!\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eSpecial Note:\u003c\/strong\u003e The yoke\/input shaft design changed with Gen II models starting at serial number 0D494570. This complete assembly is specifically for Gen II and is not compatible with earlier Gen I (\"R\" style or pre-1991) without potential modifications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eIf you have any questions, feel free to email us at \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e\u003ca href=\"mailto:orders@hawkeyemarine.net\"\u003eorders@hawkeyemarine.net\u003c\/a\u003e \u003c\/span\u003eor call 615-691-1433. Our team is ready to assist with your purchase.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis complete sterndrive assembly comes ready for installation, with \u003cstrong\u003eno core charge required\u003c\/strong\u003e.\u003c\/p\u003e","brand":"OBR Parts","offers":[{"title":"Gear Ratio 1.50","offer_id":52951959568657,"sku":"1065","price":4293.0,"currency_code":"USD","in_stock":true},{"title":"Gear Ratio 1.85","offer_id":52951959601425,"sku":"1066","price":4293.0,"currency_code":"USD","in_stock":true},{"title":"Gear Ratio 1.84","offer_id":52951959634193,"sku":null,"price":4293.0,"currency_code":"USD","in_stock":true},{"title":"Gear Ratio 1.98","offer_id":52951959666961,"sku":null,"price":4293.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1307\/2401\/files\/Completegen2.png?v=1766068986","url":"https:\/\/hawkeyemarine.net\/products\/brand-new-mercury-mercruiser-alpha-one-gen-ii-complete-sterndrive-assembly-upper-and-lower-unit-1969-1990","provider":"Hawkeye Marine, LLC","version":"1.0","type":"link"}