Weichai Marine Propulsion Engine of 7L21/31 and spare parts
	 
		Notes: H* is the hoisting height benchmarked at the center of the bent axle.
	
		
			
	
				 
			
					General Information of Weichai 7L21/31 Marine Propulsion Engine
				 
			
				 
			
					Engine Model
				 
				
					7L21/31
				 
			
				 
			
					Engine Type
				 
				
					7 Cylinders in Line
				 
			
				 
			
					Displacement
				 
				
					74.9L
				 
			
				 
			
					Bore*Stroke(mm)
				 
				
					210*310
				 
			
				 
			
					Net Weight
				 
				
					17.5T.
				 
			
				 
			
					Overall Diemension(L*H*W*H)
				 
				
					4899mm*3267mm*1695mm*2500mm
				 
			
				 
			
					Rotation direction of crankshaft(seen from the free end)
				 
				
					Clockwise
				 
			
				 
			
					Start mode
				 
				
					Air motor
				 
			
				 
			
				 
				
				 
			
				 
			
					Technical Specification of Weichai 7L21/31 Marine Propulsion Engine
				 
			
				 
			
					Marine Certification
				 
				
					CCS
				 
			
				 
			
					Aspiration
				 
				
					Turbocharged and intercooled
				 
			
				 
			
					Governor
				 
				
					Mechanical
				 
			
				 
			
					Electrical System(Starter Motor/Alternator)
				 
				
					12V/24V
				 
			
				 
			
					Cooling Mode
				 
				
					Water cooling low and high tempreture fresh water binary
				 
			
				 
			
				 
				
				 
			
				 
			
					Performance Data of Weichai 7L21/31 Marine Propulsion Engine
				 
			
				 
			
					Rated Power/Speed
				 
				
					1505kW/1000rpm
				 
			
				 
			
					Compression ratio
				 
				
					16.5:1
				 
			
				 
			
					Min. fuel oil consumption
				 
				
					192g/Kw.h
				 
			
				 
			
					Fuel consumption @rated power
				 
				
					195/Kw.h
				 
			
				 
			
					As optional of  Weichai 7L21/31 Marine Propulsion Engine
				 
			
				 
			
					Control Panel
				 
				
					As optional
				 
			
				 
		
	
					Marine Gearbox
				 
				
					As optional of Advance or Fada