Mercury® Diesel
4.2L (270-350hp)

Durable and Powerful

Designed for sterndrive and inboard applications.

  • Power mhp / kW 350 / 257
  • Maximum RPM (WOT) 3800
  • Engine type Inline 6
  • Displacement (L) 4.2
  • Weight (engine only) 1014 lbs / 460 kg

The specifications displayed here may not be indicative of the entire engine family; click on the “See All Models and Specs” link to view the specs in detail.

See All Models and Specs

Clean, Quiet, Efficient.

Quiet Ride.

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

Goede redenen om voor een hoger vermogen te kiezen.

Repower Reasons.

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

Topprestaties.

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.

Diseño Intuitivo.

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.

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.

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
    Dimensions (L x W x H)
    • 42 x 30 x 31" / 1077 x 773 x 790 mm
    Transmission and Ratio
    • ZF 631V 1.5:1, 2.0:1
    • ZF 63A 1.5:1, 2.0:1
    Weight (engine only)
    • 1014 lbs / 460 kg
    Weight (incl. transmission)
    • 1111 lbs / 504 kg
    Weight - Bravo Three
    • 1272 lbs / 577 kg
    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
  • 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
    Dimensions (L x W x H)
    • 42 x 30 x 31" / 1077 x 773 x 790 mm
    Transmission and Ratio
    • ZF 631V 1.5:1, 2.0:1, 2.5:1
    • ZF 63A 1.5:1, 2.0:1, 2.5:1
    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
    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
  • 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
    Dimensions (L x W x H)
    • 42 x 30 x 31" / 1077 x 773 x 790 mm
    Transmission and Ratio
    • ZF 631V 1.5:1, 2.0:1, 2.5:1
    • ZF 63A 1.5:1, 2.0:1, 2.5:1
    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
    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
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