1975-1986 Mercury Long 20" Lower Unit 7.5 9.8 HP 2 Stroke

• This unit shifts and spins without binding.
• The paint is a little banged up
• The oil was milky but no signs of heavy metal
• The prop shaft is straight
• The driveshaft splines are showing light wear
• This unit did not pressure check and is leaking from bearing carrier o ring.
• The drive shaft measures 18-7/8" Long and has 6 splines. The prop shaft has 8 splines. 

**Due to shipping restrictions, lower unit are shipped empty. Every lower unit requires new oil to be installed when you receive it.

Please note that we will not accept returns for this item. Please be absolutely sure this is the correct one for your motor prior to purchasing.

Location: Southcentral Outboards, Altamont, Illinois

We have provided this cross-reference with the resources we have available in regards to fitment. This most likely will not fit every model for the years and horsepowers we have listed. We urge you to make sure this is the exact item you need by matching the part number to what is required for your motor. If you need help doing so, please contact us prior to purchasing and we would be happy to help!