Login   New Account   Shopping Cart
Performance Product Technologies
PPT Free Shipping International Shipping Options
  • Marine Parts +
  • Product Diagrams +
    • Search by Serial Number
    • Barr Exhaust
    • Mercruiser Engines & Sterndrives
    • Mercury Outboards
    • Mercury Marine (All Products)
    • Sierra Marine Parts
    • Suzuki Accessories (OEM)
    • Suzuki Outboards
    • Velvet Drive Transmissions
    • Yamaha Accessories (OEM)
    • Yamaha Outboards
    • ZF Hurth Transmissions
  • Technical Resources +
    • Technical Library
    • Specifications
    • Videos
    • PPT Blog
  • Contact Us
  • Technical Library
  • Specifications
  • Videos
  • PPT Blog
  • Search by Serial Number
  • Barr Exhaust
  • Mercruiser Engines & Sterndrives
  • Mercury Outboards
  • Mercury Marine (All Products)
  • Sierra Marine Parts
  • Suzuki Accessories (OEM)
  • Suzuki Outboards
  • Velvet Drive Transmissions
  • Yamaha Accessories (OEM)
  • Yamaha Outboards
  • ZF Hurth Transmissions

Boat Shop

High Performance Equipment and Marine Parts

You are here: Marine Parts » Shop All Marine Products » Engines, Sterndrives, and Transmissions » Sterndrives - New & Rebuilt » New "MerCruiser Replacement" Sterndrives » MerCruiser Alpha One Sterndrive - Gen I

MerCruiser Alpha One Sterndrive - Gen I

Products

Sterndrive - NEW Complete Upper and Lower Assembly, Replaces Alpha Gen I, 1.47:1 Ratio - Click Here to See Product Details
Sterndrive - NEW Complete Upper and Lower Assembly, Replaces Alpha Gen I, 1.47:1 Ratio
#SEPPT106-01A 1.47
$1,655.00
Sterndrive - NEW Complete Upper and Lower Assembly, Replaces Alpha Gen I, 1.62:1 Ratio - Click Here to See Product Details
Sterndrive - NEW Complete Upper and Lower Assembly, Replaces Alpha Gen I, 1.62:1 Ratio
#SEPPT106-01A162
$1,655.00
Sterndrive - NEW Complete Upper and Lower Assembly, Replaces Alpha Gen I, 1.81:1 Ratio - Click Here to See Product Details
Sterndrive - NEW Complete Upper and Lower Assembly, Replaces Alpha Gen I, 1.81:1 Ratio
#SEPPT106-01A181
$1,655.00
Sterndrive - NEW Complete Upper and Lower Assembly, Replaces Alpha Gen I, 1.94:1 Ratio - Click Here to See Product Details
Sterndrive - NEW Complete Upper and Lower Assembly, Replaces Alpha Gen I, 1.94:1 Ratio
#SEPPT106-01A194
$1,655.00
Sterndrive - NEW Complete Upper and Lower Assembly, Conter Rotation, Replaces Alpha Gen I, 1.47:1 Ratio - Click Here to See Product Details
Sterndrive - NEW Complete Upper and Lower Assembly, Conter Rotation, Replaces Alpha Gen I, 1.47:1 Ratio
#SEPPT106-01A 1.47CR
$1,855.00
Sterndrive - NEW Complete Upper and Lower Assembly, Conter Rotation, Replaces Alpha Gen I, 1.62:1 Ratio - Click Here to See Product Details
Sterndrive - NEW Complete Upper and Lower Assembly, Conter Rotation, Replaces Alpha Gen I, 1.62:1 Ratio
#SEPPT106-01A162CR
$1,855.00
Sterndrive - NEW Complete Upper and Lower Assembly, Counter Rotation, Replaces Alpha Gen I, 1.81:1 Ratio - Click Here to See Product Details
Sterndrive - NEW Complete Upper and Lower Assembly, Counter Rotation, Replaces Alpha Gen I, 1.81:1 Ratio
#SEPPT106-01A181CR
$1,855.00
Sterndrive - NEW Complete Upper and Lower Assembly, Counter Rotation, Replaces Alpha Gen I, 1.94:1 Ratio - Click Here to See Product Details
Sterndrive - NEW Complete Upper and Lower Assembly, Counter Rotation, Replaces Alpha Gen I, 1.94:1 Ratio
#SEPPT106-01A194CR
$1,855.00

Mercruiser Alpha Series Sterndrives and Technical Product Information

The SEI 106 Series sterndrives can be used to replace Mercruiser MC1, MR1 and Alpha Generation 1 sterndrives dating as far back as 1968. All of the Mercruiser Alpha Sterndrives utilize a 17 spline input shaft. The main thing to look for is if the sterndrive being replaced had both Trim and Tilt then the SEI 106 should retrofit for this application. If the sterndrive being replaced had Tilt only and was equipped with the old style shock absorbers, then the SEI sterndrive will not retrofit. Also to note is that the SEI sterndrives have a 13 spline shaft in the lower unit. Therefore if the lower unit of the sterndrive being replaced has a 13 spline shaft then the SEI sterndrive should retrofit without any trouble.

The last thing to verify is whether you have the short or long input shaft. Select the following link (opens in a new window) to read more on how to determine this...Short Shaft versus Long Shaft.

Contact Us

1-405-533-3812

  • 8002 West 6th Stillwater, OK 74074
  • Business Hours: Mon-Fri 9:00–5:30
  • [email protected]

About Us

  • Our Company
  • Our Blog
  • Policies & Terms
  • Sitemap

Follow Us Here

  • Facebook
  • Twitter
  • LinkedIn
  • Youtube
Performance Product Technologies, EnginesRebuild & Exchange, Stillwater, OK

The best source for Mercruiser OEM parts, marine engines, boat & engine parts, accessories, boating supplies, tools, & aquatic sporting goods.

Copyright © 2023 Performance Product Technologies