SEI Marine

Gen 1 Complete Sterndrive 1.94

( 3 Reviews )

Mercruiser Alpha One Gen 1 Complete Sterndrive / Inboard Outdrive 1.94 Ratio

Replaces Mercruiser 1.94 / 1.98 Ratio

Ships in 2 halves (upper and lower) UPS Ground

Click Here for Application Assistance

Replaces most Mercruiser Sterndrives from 1974-1990.
Ships in two boxes. Comes with a 9-9/16 new style input yoke.
Does not include Complete Install Kit or Anode Kit. Please see related items below.
Up to 300 HP (SEI does not warranty applications over 300 HP)
Replaces Mercruiser Sterndrive 225-S 1974
Replaces Mercruiser Sterndrive 233 1975-1977
Replaces Mercruiser Sterndrive 250 1977
Replaces Mercruiser Sterndrive 260 1978-1982
Replaces Mercruiser Sterndrive 898/228 1977-1982
Replaces Mercruiser Sterndrive R/MR/Alpha One 1983-1990
Typical Mercruiser Sterndrive engine liter applications from 1983-1990 include 5.7L, 5.0L (4 barrel carb)
Typical Mercruiser Sterndrive engine cubic inch applications from 1983-1990 include 350, 305 (4 barrel carb)
Typical Mercruiser Sterndrive engine horsepower applications include 260, 230, 228

Current stock: 0

3 Year fault free warranty
Typically ships in 24 hours
$0.00 (Fixed Shipping Cost)

3 Reviews

13th Aug 2015

Needs Directions in the box

Great unit, bolted right up to the boat. No directions with the unit so had to dig on youtube and googlr **Install instructions are located under our TECH HELP Section on the website** Thanks MercAftermarkets

7th May 2013


The sterndrive for my 3.0L Mercruiser was exactly what I needed. The sales person I talked to was very knowledgeable about his product and helped me to make sure I got the right one for my application. I got it in short order and had no problem putting the 2 units together and installing it. I have only had a chance to use it once so far but it worked perfectly for me. Also one side not I would recommend that you print off the directions that you will find on their web site for the removal and installation procedure. It helps to guide you in the right direction.

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