1995-2000 Mercury 20" Lower Unit 8 9.9 15 HP 4 Stroke 2.0:1 1 YEAR WARRANTY

• 20 Inch Driveshaft  
• Pressure checked 
• Extended Warranty with exchange of a spinning core (see below for more info)

• Shifts and spins smoothly without binding
• Shafts checked for straightness
• Driveshaft splines show little to no wear 
• Freshwater Condition
• New impeller 

Driveshaft splines: 10

Propeller splines: 8

Driveshaft length from the top of the water pump to top of the shaft: 24-7/8"

Please add oil before use. This unit is shipped empty. 

This lower unit qualifies for a 6 month warranty. This unit is being sold with a 6 month working warranty that covers the gears, bearings, and shafts.  This does NOT cover seals.  The warranty is validated by your core.  In order to qualify for this, you must send in that core.  Both shafts must spin and it must be complete.  We will send a label for you to return your core in our box after receipt of the unit you’ve purchased.  If you do not have a spinning core, you may call in after your purchase and buy the 6 month warranty for 10% of the purchase price.  If you do not return a core or purchase a warranty, this unit will be sold with a 45 day warranty and nothing more or less. 

Location: Southcentral Outboards, Altamont, Illinois

1995-2000 Mercury 20" Lower Unit 8 9.9 15 HP 4 Stroke 

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!