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Mercury® Diesel
4.2L (270-350hp)

Durable and Powerful

Designed for sterndrive and inboard applications.

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Quiet Ride.

Quiet Ride.

The high-pressure common-rail fuel-injection system not only ensures fuel economy, it also minimises Noise, Vibration and Harshness (NVH), along with smoke and odor – the undesirable factors many boaters associate with yesterday’s diesels.

Repower Reasons.

Repower Reasons.

The lightweight, compact design of these diesel engines makes them ideal drop-in replacement power packages for many older, fuel-guzzling petrol engines. Mercury’s full range of drives offers outstanding versatility to owners of sterndrive-powered boats.

Peak Performance.

Peak Performance.

Impressive acceleration and quick throttle response are delivered by the proven common-rail fuel system, which incorporates a turbocharger and seawater after-cooler. These engines combine smooth performance with key diesel advantages, such as high torque and optimum fuel economy.

Corrosion-Resistance.

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.

Intuitive Design.

Intuitive Design.

A sophisticated Control Module and Mercury SmartCraft compatibility provide complete control over key engine functions. SmartCraft Digital Throttle & Shift (DTS) offers smooth shifting, immediate throttle response and high-tech digital controls.

Specifications

Mercury® Diesel: 4.2L (270-350hp)

  • Power mhp / kW
    • 350 / 257
    Bore and stroke
    • 3.70 x 3.94" / 94 x 100 mm
    Maximum RPM (WOT)
    • 3800
    Engine type
    • Inline 6
    Displacement (L)
    • 4.2
    Weight (engine only)
    • 1014 lbs / 460 kg
    Weight (incl. transmission)
    • 1111 lbs / 504 kg
    Weight - Bravo Three
    • 1272 lbs / 577 kg
    Dimensions (L x W x H)
    • 42 x 30 x 31" / 1077 x 773 x 790 mm
    Cooling system
    • Closed cooling
    Fuel consumption
    • 21.5 gal/hr / 81.46 l/hr @ 3800 rpm
    Compatible drives
    • Bravo Three
    Emission
    • EPA Tier 2 IMO RCD BSO/SAV certified
    Print Compare With Other Products Request a Quote
  • Power mhp / kW
    • 320 / 235
    Bore and stroke
    • 3.70 x 3.94" / 94 x 100 mm
    Maximum RPM (WOT)
    • 3800
    Engine type
    • Inline 6
    Displacement (L)
    • 4.2
    Weight (engine only)
    • 1014 lbs / 460 kg
    Weight (incl. transmission)
    • 1111 lbs / 504 kg
    Weight - Bravo One
    • 1246 lbs / 565 kg
    Weight - Bravo Two
    • 1261 lbs / 572 kg
    Weight - Bravo Three
    • 1272 lbs / 577 kg
    Dimensions (L x W x H)
    • 42 x 30 x 31" / 1077 x 773 x 790 mm
    Cooling system
    • Closed cooling
    Fuel consumption
    • 19.0 gal/hr / 71.96 l/hr @ 3800 rpm
    Compatible drives
    • Bravo One
    • Bravo Three
    • Bravo Two
    Emission
    • EPA Tier 2 IMO RCD BSO/SAV certified
    Print Compare With Other Products Request a Quote
  • Power mhp / kW
    • 270 / 199
    Bore and stroke
    • 3.70 x 3.94" / 94 x 100 mm
    Maximum RPM (WOT)
    • 3800
    Engine type
    • Inline 6
    Displacement (L)
    • 4.2
    Weight (engine only)
    • 1014 lbs / 460 kg
    Weight (incl. transmission)
    • 1111 lbs / 504 kg
    Weight - Bravo One
    • 1246 lbs / 565 kg
    Weight - Bravo Two
    • 1261 lbs / 572 kg
    Weight - Bravo Three
    • 1272 lbs / 577 kg
    Dimensions (L x W x H)
    • 42 x 30 x 31" / 1077 x 773 x 790 mm
    Cooling system
    • Closed cooling
    Fuel consumption
    • 16.0 gal/hr / 60.66 l/hr @ 3800 rpm
    Compatible drives
    • Bravo One
    • Bravo Three
    • Bravo Two
    Emission
    • EPA Tier 2 IMO RCD BSO/SAV certified
    Print Compare With Other Products Request a Quote
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