the motor – Mercury 175 Optimax

Here’s some specs on the motor we’ve chosen for the boat. I did a great deal of research on motors before settling on this model. Powerful, economical and reliable!

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imageBEST-IN-CLASS FUEL EFFICIENCY
The innovative OptiMax DI system delivers the ultimate in efficiency, squeezing more miles and performance from every drop of fuel.

LIGHTWEIGHT, COMPACT DESIGNS
OptiMax boasts an outstanding power-to weight ratio, contributing to increased speed and better fuel efficiency. It’s a great engine for any type of boat.

INDUSTRY-LEADING CORROSION RESISTANCE
OptiMax is built saltwater tough with more stainless steel and corrosion resistant components.

SMART FEATURES FOR EASY BOATING
OptiMax is controlled by the innovative Motorola® Propulsion Control Module (PCM) and is loaded with "smart" features that make boating more enjoyable, such as SmartCraft and Engine Guardian.

PROVEN GEARCASE AND HYDRODYNAMICS
No marine engine company has more knowledge about hydrodynamics and gearcase design.
Reliability, pleasing performance, comfortable handling and unbeatable speed make it the top choice in DI engines.

A LEGACY OF LEADERSHIP
OptiMax is the best-selling DI outboard on the market and ranks among the marine world’s best values.

OptiMax 175 Specifications

– HP @ Prop 175

– kW @ Prop 129
– Max RPM (WOT) 5250-5750
– Displacement (CID/cc) 153/2507
– Bore & Stroke (in) 3.50 x 2.65
– Bore & Stroke (mm) 89 x 67
– Ignition System PCM 07
– Starting Electric
– Gear Ratio 1.87:1
– Gear Shift F-N-R
– Steering Remote
– Alternator Amp 60 (belt-driven)
– Alternator Watt 756 (belt-driven)
– Trim System Power trim
– Exhaust System Through prop

– Lubrication System Electronic multipoint oil injection
– Cylinder/Configuration V-6 (60 degree vee)
– Recommended Oil Mercury OptiMax/DFI Engine Oil
– Fuel Induction System 2-stage direct fuel injection
– Shaft Length (inches) 20/25
– Shaft Length (mm) 508/635
– Dry Weight (lbs.) 431
– Dry Weight (kg.) 195
– Operator Warning System Overheat, low oil level
– SmartCraft Yes
– Warranty 3
– Counter Rotation Available
– Cooling System Water-cooled w/ thermostat 
& pressure controlled

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