Model Number: R185K/R180NL/R175ANL/R175BNL Brand Name: PR Key Specifications/Special Features: .Cast iron water tank, cast iron frame, cast iron gear box cover, standard spare parts for free.Light and handy in structure, convenience in moving, small in vibration.As a power device used for walking tractor, irrigation and generating sets, air compressor, inland ships, engineering machinery, transportation vehicle and processing machinery for agricultural products and sideline products ModelR185KR180NLR175ANL R175BNL Type Single-cylinder water-cooled Horizontal Four-stroke Single-cylinder Horizontal Four-stroke Single-cylinder Horizontal Four-stroke Single-cylinder Horizontal Four-stroke Combustion system Swirl combustion Chamber Swirl combustion Chamber Precombustion Chamber Swirl combustion Chamber Bore x stroke (mm) 85×80 80×80 75×80 75×80 Compression ratio 21±1 21±1 22±1 22±1 1-hour rated output(kW/rpm) 6.47/2600 5.67/2600 4.85/2600 4.85/2600 12-hour rated output (kW/rpm) 5.88/2600 5.15/2600 4.41/2600 4.41/2600 Specific fuel consumption (g/kWh) ≤278.8 ≤288.4 ≤288.4 ≤288.4 Specific lube oil consumption (g/kWh) ≤4.08 ≤4.08 ≤4.76 ≤4.76 Cooling system Hopper Water-cooled Radiator Radiator Radiator Lubrication system Combined pressure and Splashing Combined pressure and Splashing Combined pressure and Splashing Combined pressure and Splashing Starting method Hand crank Hand crank Hand crank Hand crank Net Weight (kg) ≤72 72 65 65 Method of power output Output of flywheel end Output of flywheel end Output of flywheel end Output of flywheel end Overall Dimensions (mm) 625*341*464 625*341*464 589*341.5*463 589*341.5*463