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        Products & ServiceMarine engines

        Weichai WP12 series marine diesel engine (258-405kW)

        Product advantages

        The WP12 Landking series diesel engine is a marine energy-saving and environmentally-friendly diesel engine independently developed by Weichai in 2004 in terms of ship power utilization characteristics and configuration requirements, which uses a brand new design concept for special design optimization. It features compact structure, strong power, good fuel economy and high reliability, and is used as the supporting power for ships, such as inland river transport ships, fishing boats, public service ships, yachts, and passenger ships.

        Product parameters


        Type
        Four-stroke, water-cooled, inline, and dry cylinder liner
        Number of cylinders
        6
        Bore/stroke
        126×155mm
        Displacement
        11.596L
        Minimum fuel consumption rate
        194g/kW·h
        Oil consumption rate
        0.5g/kW·h
        Starting mode
        Electrical starting
        Idle speed
        650±50r/min
        Firing order
        1-5-3-6-2-4
        Smoke intensity
        ≤1.5Rb
        Noise
        ≤119dB(A)
        Rotation direction of crankshaft 
        (Toward the free end)
        Clockwise

        Product portfolio

        Model Air intake mode Rated power (kW/Ps) Rotational speed rpm) Oil supply mode Emission level
        WP12C350-15
        Turbocharged and intercooled
        258/350
        1500
        Mechanical pump
        IMO II/China Tier I
        WP12C400-18
        Turbocharged and intercooled
        295/400
        1800
        Mechanical pump
        IMO II/China Tier I
        WP12C450-21
        Turbocharged and intercooled
        330/450
        2100
        Mechanical pump
        IMO II/China Tier I
        WP12C350-15E121
        Turbocharged and intercooled
        258/350
        1500
        Electronic control
        IMO II/China Tier I
        WP12C400-18E121
        Turbocharged and intercooled
        295/400
        1800
        Electronic control
        IMO II/China Tier I
        WP12C450-21E121
        Turbocharged and intercooled
        330/450
        2100
        Electronic control
        IMO II/China Tier I
        WP12C500-21E121
        Turbocharged and intercooled
        368/500
        2100
        Electronic control
        IMO II/China Tier I
        WP12C550-21E121
        Turbocharged and intercooled
        405/550
        2100
        Electronic control
        IMO II/China Tier I

        Remarks: The product parameters and portfolio are for reference only. For details of fishing portfolio, please contact the relevant personnel for official information.

        Product Features

      1. Safe and reliable: It uses the main frame structure of the Landking Euro III diesel engine with a high-pressure common rail; its engine block, crankcase, cylinder head, crankshaft and connecting rod and other components are enhanced; its main components are subject to finite element analysis and simulation, hence, its working reliability and service life are improved significantly.
      2. Fuel economy: The PZ8500 in-line flange pump is able to fully atomize the fuel, and obtain bigger working capacity; its four-valve structure makes possible the abundant air intake to facilitate combustion and reduce the fuel consumption; Due to wider operating range of the diesel engine, it has excellent fuel economy in operating conditions.
      3. Environment friendly and comfortable: It uses a frame type body to reduce the noise in the gear chamber; a special oil sump is provided so that the noise produced by the diesel engine is reduced significantly.
      4. Reasonable arrangement: The turbocharger is able to use the middle and rear modes to meet the customer's needs; the intercooler and heat exchanger are arranged at the both ends of the diesel engine to obtain a more reasonable layout.
      5. Back to top

        R & D

        20000 +
        Global R & D personnel
        5+10 
        R & D institutions in five countries, ten regions

        Engines

        • 5,000,000 units
        • 22-10000Ps
        • 200 million kilowatts
        • Application for all markets

        Global layout

        Global English official website
        Shandong ICP 09087426 Copyright ? Weichai Holding Group Co.,Ltd.

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