Description
The 2016 Mercury Optimax 175 ProXS is a high-performance 175HP direct fuel injection (DFI) 2-stroke outboard motor engineered for bass boats, tournament fishing boats, bay boats, and performance-oriented fishing applications. It belongs to Mercury’s famous ProXS lineup, which was designed to deliver fast acceleration, lightweight construction, aggressive throttle response, and strong top-end speed while maintaining better fuel economy than traditional carbureted 2-stroke engines.
The ProXS series became extremely popular among tournament anglers because of its excellent power-to-weight ratio, rapid hole-shot performance, and dependable Mercury SmartCraft electronics.
Key Features
175 Horsepower High-Performance Engine
Optimax Direct Fuel Injection (DFI) Technology
2-Stroke V6 Performance Platform
ProXS Tournament Performance Tuning
Electronic Fuel Injection System
SmartCraft Digital Engine Management
Rapid Hole-Shot Acceleration
High Top-End Speed Capability
Lightweight Performance Design
Torque Master Gearcase Compatibility
Power Trim & Tilt System
Electric Start System
Remote Steering Compatibility
Water-Cooled Thermostat-Controlled System
Through-Prop Exhaust System
Oil Injection Lubrication System
SmartCraft Gauges & NMEA Compatibility
Heavy-Duty Performance Gearcase
High Torque Mid-Range Power Delivery
Low Emissions Direct Injection Technology
Saltwater-Resistant Marine Construction
Fast Throttle Response
Performance-Tuned ECU Calibration
Excellent Power-to-Weight Ratio
Bass Boat Tournament Engineering
Fuel Efficient Compared to Older 2-Strokes
Heavy-Duty Marine Components
Offshore & Freshwater Compatibility
Technical Specifications
- Engine Type: V6 2-Stroke Direct Injection
- Horsepower: 175 HP
- Displacement: 2.5L V6 Platform
- Fuel System: Optimax Direct Fuel Injection (DFI)
- Ignition: PCM Digital SmartCraft Ignition
- Starting System: Electric Start
- Cooling System: Water-Cooled with Thermostat
- Steering: Remote Control
- Gear Shift: Forward / Neutral / Reverse
- Gear Ratio: ~1.87:1
- Full Throttle RPM Range: 5500–6000 RPM
- Alternator Output: Approximately 60 Amp
- Shaft Lengths: 20” Standard / 25” Optional
- Fuel Type: Unleaded Gasoline
- Oil System: Mercury Optimax Oil Injection
- Dry Weight: Approximately 431–455 lbs depending on configuration
- Trim System: Power Trim & Tilt







