Mercury Outboard  Lower Unit Gear Case Parts 

Mercury Outboard / Mariner Section
 
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Mercury / Mariner Outboard Motor Section   or:   MerCruiser Section 

 

Drive Shafts

Pinion Nuts
 

Gear Case Seal Kit 

Spanner Nuts and Miscellaneous
 

Prop Shafts

Clutch Dogs

35HP-90HP:  
 
Driveshaft (Drive Shaft) Bearing Pinion Bearing Inside Forward Gear Bearing Carrier Bearing 
 
Outside Forward Gear Bearing Reverse Gear Bearing Reverse Gear Thrust Bearing

   

100HP-150HP:
Driveshaft (Drive Shaft) Bearing Pinion Bearing Inside Forward Gear Bearing Carrier Bearing  
 
Outside Forward Gear Bearing

Reverse Gear Bearing  

 Reverse Gear Thrust Bearing
 
150HP-225HP
Driveshaft (Drive Shaft) Bearing Pinion Bearing

Inside Forward Gear Bearing
Carrier Bearing Outside Forward Gear Bearing Reverse Gear Bearing
Reverse Thrust Bearing
  

To view a Mercury Outboard Lower Unit click below
  

3 Cylinder 1970-1990 Lower Unit
  

Mercury Outboard 150-200HP V6 Lower Unit