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Used Outboard Parts & Fresh Water Sterndrive Parts

879809A08 Mercury Outboard ProXS 175 HP V6 2.5L Powerhead Long Block Assembly
879809A08 Mercury Outboard ProXS 175 HP V6 2.5L Powerhead Long Block Assembly879809A08 Mercury Outboard ProXS 175 HP V6 2.5L Powerhead Long Block Assembly879809A08 Mercury Outboard ProXS 175 HP V6 2.5L Powerhead Long Block Assembly879809A08 Mercury Outboard ProXS 175 HP V6 2.5L Powerhead Long Block Assembly879809A08 Mercury Outboard ProXS 175 HP V6 2.5L Powerhead Long Block Assembly879809A08 Mercury Outboard ProXS 175 HP V6 2.5L Powerhead Long Block Assembly879809A08 Mercury Outboard ProXS 175 HP V6 2.5L Powerhead Long Block Assembly
$2,500.00
This sale is for one used Mercury Outboard ProXS 175 HP V6 2.5L Powerhead Long Block Assembly

Mercury Part Number 879809A08 

Serial Number 1B978090

This powerhead does run but the #1 and #5 cylinders had poor compression and leakage numbers.

Compression Test:
90/125/125/125/90/130

Leakage Test:
22%/8%/10%/6%/18%/5%

This powerhead is clean!  It is from fresh water use and it is not corroded and there are no cracks in the cylinder block.

Here is a video we have of the engine running in January 2023.



You will receive this exact powerhead you see with everything pictured.

This ships on a Freight Truck so you will need to be there for delivery. Commercial address is best for this type of shipment. We will contact you after the sale to confirm the address and phone number for freight truck delivery. 

Please check your part numbers to ensure a proper fit for your application. 

Feel Free To Ask Questions.

adam-Theresa- T435A/end of plate racking T499A

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