Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI
Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI
Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI
Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI
Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI
Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI
Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI
Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI
Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI

Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI

We have 1 in stock.

Regular price $349.95 Sale

Pine Lake Parts is not an authorized dealer for any Manufacturer except for CHP Systems, Inc.



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Mercury 9077A4 Powerhead Cylinder Block 25 HP XD Crankshaft Piston 125/120PSI

Good complete powerhead with 125/120. compression.  

No sign of water leaks or overheat.

Came to me with no gearcase.  I did not run the engine but believe the gearcase gave out and owner decided not to repair.   

Clean, Fresh water, ready to assemble 25 hp mercury powerhead.


Brand: Mercury
Manufacturer Part Number: 9077A4 9533A7 9533A28 9533T28 9533T38
Engine(HP): 25
Warranty: 30 Day

Condition: Used




PLEASE make sure this will fit your application before buying.  If your specific model is not mentioned in this listing, you must check your own fitment. 

If you are not sure if the part will work on your motor send us a message.  Include the year, horsepower, make, model # and/or serial # of your motor so we can assist you.  For Mercury motors we absolutely need your serial number.  For Johnson/Evinrude motors we need your model number.  If we cannot pull up a parts diagram from the information provided we cannot confirm fitment.


Carefully review each and every photo as they best describe the condition of the item(s) and what is all included in this listing.  If something isn't photo'd or mentioned here in the description then it is not included.




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