Mercruiser New Alpha One Complete Lower Unit/Gearcase

$1,935.00

Weight	50 lbs
Gear Ratio	1.47:1, 1.62 Short Yoke, 1.62:1, 1.81 Short Yoke, 1.81:1, 1.94 Short Yoke, 1.94:1
Rotation	Counter Rotation
Finish	Black — New Aftermarket Unit
Warranty	3 Years Fault Free Warranty

New Mercruiser Alpha One Sterndrive – Gen I (1972–1990)
Fits R/MR models of Alpha One sterndrives, direct replacement
Works with multiple gear ratio options
Fully assembled with shift shaft & internals, ready to install
Aftermarket engineered, OEM-matching performance
Rugged cast aluminum housing, black factory-style finish
Backed by a 3-Year FAULT-FREE Warranty
Base Price: $1,905 – Potential Core Rebate : $200 = Final Cost: $1,705

SKU: bwi106-C Category: Lower Units Brand: MerCruiser

Description

New MerCruiser Alpha One Complete Lower Unit/Gearcase – Gen I (1972–1990)

This New MerCruiser Alpha One Complete Lower Unit is a high-performance aftermarket replacement for MerCruiser Alpha One I/O models from 1972 to 1990, including R/MR drives. Built to deliver long-lasting reliability and power, it includes multiple gear ratio options and is designed to seamlessly replace worn or damaged Alpha One Gen 1 lower units.

This complete MerCruiser gearcase assembly is a direct-fit solution with factory-style design and quality components. Whether you’re replacing a damaged unit or restoring an older Alpha One drive, this lower unit delivers value and dependability for Alpha One sterndrive owners, especially for those who require exact MerCruiser Alpha Gen 1 compatibility.

Features & Benefits:

Fits MerCruiser Alpha One Gen 1 drives (R/MR models, 1972–1990)
Works with multiple gear ratio configurations
Fully assembled with shift shaft and internal components
Strong aftermarket alternative to OEM parts
Backed by a 3-Year FAULT-FREE Warranty
Compatible with various Alpha One drive setups

Pricing

Total Price: ~~$1,935~~
Less $200 Core Rebate
Final Price: $1,735

Product Finish:

Rugged cast aluminum housing
Non-OEM, aftermarket engineered
OEM-matching quality & performance
Black factory-style finish
Includes internals, ready to install

Core Rebate Information

Return your old core, get up to $200 back
Rebate amount will vary based on the condition of your core
♻️ Recycle your core- keep boat parts out of the landfill

Useful Resources

🔍 How to find your Boat Engine serial number?
Still deciding? Watch our YouTube video How to avoid common lower unit replacement mistakes
To help extend the life of your gearcase, check out our Boat Maintenance Checklist

Additional information

Weight	50 lbs
Gear Ratio	1.47:1, 1.62 Short Yoke, 1.62:1, 1.81 Short Yoke, 1.81:1, 1.94 Short Yoke, 1.94:1
Rotation	Counter Rotation
Finish	Black — New Aftermarket Unit
Warranty	3 Years Fault Free Warranty

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Real Google Reviews

    
 
 
         
   ENDEIBER MEDINA 
 
 
 
 Trustindex verifies that the original source of the review is Google. Hola buenas noche soy de Columbus Ohio necesito una pata para motor Evinrude  225 rotación derecha la necesito nueva la tienes para ir asta allá hacer la compra y tiene transductor porque yo hablo español
  
 
        
   Suzanne Anderson 
 
 
 
 Trustindex verifies that the original source of the review is Google. What an amazing find! Ty Boatworks
  
 
        
   Kayla Nguyen 
 
 
 
 Trustindex verifies that the original source of the review is Google. My dad needed a couple of parts, he spoke with Tim over the phone & had them held. I went to go pick them up! Ashley was so kind and helpful, love her energy! Thank you to the fam up at US Boatworks!
  
 
        
   Jeremy Alexander 
 
 
 
 Trustindex verifies that the original source of the review is Google. Got the part I needed
  
 
        
   xyz zyx 
 
 
 
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   Henry Tiner 
 
 
 
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   Steve Gwadera 
 
 
 
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   Gene Aubry 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great support fast shipping
  
 
        
   Movilaru Andrei 
 
 
 
 Trustindex verifies that the original source of the review is Google.

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Mercruiser New Alpha One Complete Lower Unit/Gearcase

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