2025 Mercury Marine® 270 hp Inboard Base

2025 Mercury Marine® 270 hp Inboard Base

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  • Year 2025
  • Make Mercury Marine®
  • Model 270 hp Inboard
  • Engine Turbocharger Cooling: Closed cooled | Stop: ECU Controlled | Control Unit (ECU): Bosch EDC17
2025 Mercury Marine® 270 hp Inboard Base

2025 Mercury Marine® 270 hp Inboard Base

2025 Mercury Marine® 270 hp Inboard

Powerful and Compact

Redefining the standard in a powerful, compact and easy-to-service package

Features may include:

Easy-to-Maintain.
  • Mercury Diesel’s 3.0L engine simplifies maintenance by locating service points at the front of the engine. The oil, coolant, fuse box, seawater strainer, drive lube (sterndrive only) and power steering fluid (sterndrive only) service points are located at the front of the engine next to Mercury’s color-coded maintenance schedule to provide easy-to-understand service guidelines and easy-to-reach access.
Redefining the Standard.
  • The new Mercury Diesel 3.0L common-rail high-speed engine delivers exceptional performance and offers substantial improvements in acceleration and top speed – all made possible by a new water-cooled variable geometry turbocharger design (VGT). This matched system, plus a state-of-the-art engine control system, provides reduced time to plane and outstanding overall performance.
Reliability + Performance.
  • Enjoying your time on the water is more easily achieved with an engine that performs day in and day out. Mercury Diesel’s 3.0L engine is assembled in a state-of-the-art manufacturing facility that employs the latest in quality practices and control, ensuring ultimate confidence in reliability. Combine the reliability and performance of the Mercury Diesel 3.0L with Mercury’s proprietary SmartCraft system and a full suite of accessories that contribute to an unsurpassed boating experience.
Quiet Performer.
  • The Mercury Diesel 3.0L delivers exhilarating performance while minimizing noise and vibration, while the air filter doubles as a silencer that removes the turbo whine historically associated with diesel engines. The motor mounts are designed to minimize vibration. Having a conversation while cruising has never been easier.
Joystick Piloting for Inboards.
  • The only joystick piloting system that’s compatible with gasoline or diesel inboard and tow sport engines.
  • The only joystick piloting system for single-inboard boats.
Corrosion-Resistance.
  • Mercury diesels feature state-of-the-art anti-corrosion, including a thermostatically controlled closed water-cooled system. Water-cooled engine oil, gear oil and steering fluid decrease engine-room temperatures, extending engine life. The SeaCore® system is available for the ultimate in saltwater protection.

Engine

Engine Turbocharger Cooling: Closed cooled | Stop: ECU Controlled | Control Unit (ECU): Bosch EDC17
Engine Power 270 HP
Engine Type V6
Displacement 3.0 L
Cylinder Liners Valves per: 4
Throttle Max (WOT): 4200 RPM | Peak Torque: 594 Nm @ 2200 rpm | and shift: Mercury DTS or Mechanical Cable
Bore 3.27" (83 mm)
Stroke 6.62" (92 mm)
Cooling Coolers: Aftercooler, Engine Coolant, Engine Oil, Power Steering / Gear Oil and Fuel - All are tube and shell
Compression Ratio 16.5:1
Gauges Helm and gauge compatibility: Mercury SmartCraft

Electric

Electrical System: 12 V, 110 A w/ conveniently located battery power and ground studs

Fuel System

Fuel System High pressure common rail

Dimensions

Length 36.6" (931 mm)
Width 33.5" (851 mm)
Height 30.0" (784 mm)
Dimensions Seawater pump inlet size: 1.5 in (38 mm) | Flywheel size: 11.42 in (290 mm) SAE 8

Capacities

Volume Oil sump: 8.5 L | Coolant: 12 L

Weights

Dry Weight Engine only: 767 lbs (348 Kg)

Features

Features Air Handling: Turbocharged and Aftercooled | Rotation: Counter clockwise facing flywheel | Fuel lift pump: On engine | High pressure fuel pump: Bosch CP 4.2 w/ integrated gear lift pump | Pistons: Oil jet cooled | Fuel injectors: Bosch CRS 2.20 (Solenoid) | Glow Plugs: Standard equipment with Bosch glow plug control unit (GCU) | Air inlet (Starboard Rear): Filtered and silenced | Turbocharger: Honeywell VGT | Dipstick range: 1.0 L | Oil maintenance interval: 200 hours or annually | MerCathode (Sterndrive only): Engine mounted | Mercury Joystick Piloting: Compatible with Joystick Piloting for Inboards | Sensors: Crank & cam position, intake manifold pressure/temp, compressor outlet temp, exhaust gas temp, fuel temp, rail pressure, water in fuel (WIF), oil pressure/temp, coolant temp, seawater pressure/temp, atmospheric pressure

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