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New Mercury/Mariner 115-175 HP 2.5L OptiMax Powerhead Rebuild Kit [1998-2014]

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 Product Description

Featuring all the parts needed to effectively rebuild an outboard powerhead in one convenient package, our powerhead rebuild kits offer a combination of cast WSM Pistons complete with Japanese rings, pins, and clips, the highest quality gaskets available, and the necessary crank bearings, rod bearings, and rod bolts. These kits are available with Standard-Size Pistons or .015/.030/.040 Oversize Pistons, so please specify when placing an order.

This rebuild kit is designed for use with Mercury/Mariner 115-175 HP 2.5L OptiMax Powerheads from 0G960500 through 0T178499 (1998-2014); this kit fits powerheads with O-Ringed Cylinder Heads and use 644 Connecting Rod.

Six Pistons [Complete with rings, pins, and clips]


One Gasket Kit [including 1 Drive Housing Gasket, 1 Base Gasket, 1 Drive Plate Gasket, 1 Reed Block Gasket, 1 Plate Gasket, 1 Divider Plate Gasket, 1 Upper End Cap O-Ring, 1 Lower End Cap O-Ring, 6 Head Inner O-Rings, 2 Head Outer O-Rings, 1 Throttle Body O-Ring, 1 Fuel Pump Gasket, 2 Relief Valve Gaskets, 2 Case Half Gaskets, 1 Thermostat Gasket, 1 Divider Hose Seal, and 3 End Cap Oil Seals]


Main Bearings [One Upper, Two Center, and One Lower]


Rod Bearings [Six Upper and Six Lower]


Twelve Rod Bolts


This item is eligible for Free Shipping to locations in the Lower 48. Increased fees will apply for Alaska, Hawaii, US Territories, and International Shipping. Shipments to Kentucky will be charged 6% KY sales tax.

If you have any questions, please contact us through e-mail at obparts+cs@gmail.com. Please provide your engine model and serial numbers to help confirm compatibility.

Didn't find the Outboard Part you needed?  We have many additional parts in our warehouse.  Please contact us directly to let us do a custom search for the part you need. 

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