



Mercury F115 EFI Pro XS Outboard Motor - Complete Overview and Technical Specifications
The Mercury F115 EFI Pro XS is a high-performance 4-stroke outboard motor that represents the ideal combination of lightweight construction and high performance. This motor is designed for medium-sized vessels and provides unmatched performance, torque, and overall for boats from 14 to 23 feet in a single engine or up to 28 feet in a twin-engine configuration.
Key Features and Benefits
1. Robust Engine Construction
The F115 Pro XS engine uses the same 2.1-liter block and cylinder head as the 200 HP Verado engine. This construction ensures exceptional durability and reliability, as it is designed to handle much higher outputs.
2. Lightest in Class
Weighing only 163 kg, the Mercury F115 Pro XS is the lightest 4-stroke engine in its class, providing better performance and fuel savings.
3. Maintenance-Free Valve Train
The engine has the same shimless valve architecture as Verado engines, meaning valve maintenance throughout the engine's life.
4. Excellent Corrosion Protection
Mercury offers a 3-year corrosion material warranty thanks to special metal alloys, hard anodized coating, and a high number of 300 series stainless steel parts.
5. Command Thrust Gearbox (CT Versions)
CT gearbox versions from the 150 HP engine, providing better response, higher torque, and the ability to use a wider range of propellers.
Characteristics Value Engine Type 4-cylinder, 4-stroke, SOHC with 8 valves Displacement 2.1 liters (105.7 cubic inches) Power 115 HP (85.7 kW) Maximum RPM 5300 – 6300 RPM Configuration Inline 4-cylinder Dry Weight 163 kg (lightest in class) Cooling Water cooling Fuel System EFI (Electronic Fuel Injection) Ignition Microprocessor programmed Exhaust Through propeller hub Gear Ratio 2.07:1 (standard) / 2.38:1 (CT version) Shifting FNR (Forward-Neutral-Reverse) Leg Length D: 508 mm, XL: 635 mm Alternator 35A (50A in some versions) Recommended Fuel Unleaded gasoline 87 octane minimum Gearbox Standard or Command Thrust (CT)
The Mercury F115 EFI Pro XS represents a top-notch outboard motor that combines performance, reliability, and fuel efficiency. Its robust construction based on Verado engine technology, the lowest weight in its class, and advanced features like SmartCraft diagnostics make it an ideal choice for large boats.
