Durable and Powerful

Designed for sterndrive and inboard applications.

Make An Enquiry Mercury brand brochure
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. 

Performance
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. 

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. 

Performance
Intuitive Design

DTS controls enhance the performance of Mercury propulsion systems by providing smooth shifting and instant throttle response, with zero hesitation.  

Performance
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 Specifications by Horsepower

Select Engine :
Name Mercury Diesel 270 HP
Displacement (L) 4.2
Engine type Inline 6
Maximum RPM (WOT) 3800
Weight (engine only) Ibs / kg 1014 lbs / 460 kg
Weight (incl. transmission) 1111 lbs / 504 kg
Power mhp / kW 270 / 199
Bore and stroke 3.70 x 3.94" / 94 x 100 mm
Dimensions (L x W x H) 42 x 30 x 31" / 1077 x 773 x 790 mm
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 / 60.6 l/hr @ 3800 rpm
Compatible drives Bravo One X / Bravo Three X / Bravo Two X
Emission RCD 2 (BSO 2) / IMO 2 / EPA Tier 2 certified
Name Mercury Diesel 320 HP
Displacement (L) 4.2
Engine type Inline 6
Maximum RPM (WOT) 3800
Weight (engine only) Ibs / kg 1014 lbs / 460 kg
Weight (incl. transmission) 1111 lbs / 504 kg
Power mhp / kW 320 / 235
Bore and stroke 3.70 x 3.94" / 94 x 100 mm
Dimensions (L x W x H) 42 x 30 x 31" / 1077 x 773 x 790 mm
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 / 71.9 l/hr @ 3800 rpm
Compatible drives Bravo One X and XR / Bravo Three X and XR / Bravo Two X
Emission RCD 2 (BSO 2) / IMO 2 / EPA Tier 2 certified
Name Mercury Diesel 350 HP
Displacement (L) 4.2
Engine type Inline 6
Maximum RPM (WOT) 3800
Weight (engine only) Ibs / kg 1014 lbs / 460 kg
Weight (incl. transmission) 1111 lbs / 504 kg
Power mhp / kW 350 / 257
Bore and stroke 3.70 x 3.94" / 94 x 100 mm
Dimensions (L x W x H) 42 x 30 x 31" / 1077 x 773 x 790 mm
Weight - Bravo One 1246 lbs / 565 kg
Weight - Bravo Two 1261 lbs / 572 kg
Weight - Bravo Three 1272 lbs / 577 kg
Fuel consumption 21.5 gal/hr / 81.4 l/hr @ 3800 rpm
Compatible drives Bravo One XR / Bravo Three XR
Emission RCD 1 / IMO 2 / EPA Tier 2 certified

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