MerCruiser Alpha One Gen II Sterndrive Outdrive Complete 1.81 Gear Ratio
Genuine MerCruiser Alpha One Generation II sterndrive / outdrive assembly featuring a reported 1.81:1 gear ratio. This complete upper and lower drive assembly is designed for compatible MerCruiser Alpha One Gen II stern-drive applications.
The assembly includes the upper gear housing, lower gear housing, U-joint driveshaft assembly, propeller shaft, anti-ventilation plate, and related components shown in the photographs.
The Alpha One Generation II sterndrive was introduced for the 1991 model year and features a different design from the earlier Alpha One Generation I system. Buyers should confirm their existing drive generation, gear ratio, engine application, and mounting compatibility before purchasing.
This unit is being sold as a used replacement sterndrive assembly. Its internal mechanical condition and operating performance have not been verified.
Highlights
Genuine MerCruiser Alpha One Generation II
Complete Upper and Lower Sterndrive Assembly
Reported 1.81:1 Gear Ratio
Black Factory-Style Finish
Upper Gear Housing Included
Lower Gear Housing Included
U-Joint Driveshaft Assembly Included
Propeller Shaft Included
Anti-Ventilation Plate Included
Suitable for Compatible Alpha One Gen II Applications
Sold Exactly as Pictured
Condition
Used – Mechanical Condition Not Verified
The sterndrive shows signs of previous use, including scratches, scuffs, cosmetic wear, and some surface oxidation on exposed metal components.
The black exterior finish remains present throughout most of the assembly. The visible U-joint driveshaft and propeller shaft show discoloration and surface oxidation consistent with age and previous use.
No obvious major cracks or broken housing sections are visible in the supplied photograph.
The sterndrive has not been confirmed as mechanically tested. Gear engagement, internal gears, bearings, seals, water pump, and pressure integrity have not been verified.
Please review all photographs carefully for exact condition and included components. Sold exactly as pictured.
Specifications
Brand: MerCruiser / Mercury Marine
Part Type: Complete Sterndrive / Outdrive Assembly
Model: Alpha One Generation II
Gear Ratio: 1.81:1 (Reported; Not Independently Verified)
Drive Type: Stern Drive / Inboard-Outboard
Color: Black
Included Components: Upper Housing, Lower Housing, U-Joint Driveshaft Assembly, Propeller Shaft, and Attached Components
Condition: Used
Testing: Not Verified
Serial Number: Not Provided
Fitment: Compatible MerCruiser Alpha One Generation II applications requiring the appropriate gear ratio and drive configuration.
Not Included: Propeller, Trim Cylinders, Transom Assembly, Gimbal Housing, or Additional Mounting Hardware.
Important: Alpha One Generation I and Generation II sterndrives are not directly interchangeable. Buyer must verify the drive generation, gear ratio, serial number, and compatibility with their existing engine and transom assembly before purchase.
Dealer Sale – Sunset Marine TX LLC
SKU: 10887