Mercury 2011 2012 2013 2014 2015 Cylinder Block 135 150 HP 4-Stroke EFI

• Removed from a freshwater engine 
• The black half of the block has been dissembled to check crankshaft bearings
• The Bearing in the crankshaft balancer was bad
• This had low compression on cylinder 2 and 4 so we believe that the bad bearing in the balancer caused pre-mature wear in the piston rings and with a new set of rings this will be ready to install. 
• Ready for rebuild 

Please note that we will not accept returns for this item if it is ordered incorrectly or if you change your mind. We guarantee this part to be in working condition if there are any issues, please contact us. However, please be absolutely sure this is the correct one for your motor prior to purchasing.

Location: Southcentral Outboards, Altamont, Illinois

Because of how new this motor is, we cannot cross-reference all the years and horsepowers that this item will fit. If you need help identifying if this is the correct one for your motor, please do not hesitate to contact us prior to purchasing with your serial number and we would be happy to help!