1.81 Ratio, UPPER UNIT w/ SHORT YOKE (Replaces Mercruiser Alpha One Gen 1) OE#: 5523A67

The 1.81 ratio also replaces the 1.84 ratio

Comes with a 8-1/8 input yoke.

This drive is generally used on older inline 6 and 4 cylinder engines.

For more information on how to measure your existing yoke or any other questions please call

Replaces:

OE#: 5523A67

3 Year Fault Free Warranty