Mercury® Diesel
4.2L (270-350hp)
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.
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.
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.
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.
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.
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
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
-
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
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
-
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
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