Cooling system

  • Rubber coupling heat exchanger Volvo Penta MD2030C, MD2030D 861920

    Rubber coupling heat exchanger Volvo Penta MD2030C, MD2030D 861920

    Sale! Original price was: €87,95.Current price is: €72,95. Out of stock    Read more
  • Volvo Penta expansion plug for cylinder head - 477024

    Freezer cup 26.00mm freezer cap

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  • Carbon 10" BB Main Image

    Carbon 10″ BB

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  • Impeller 9200-0023-P

    Impeller 9200-0023-P

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  • Skin passage with STRAINER 1

    Skin passage with STRAINER 1

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  • Elbow 90 degrees 2x female thread 1 1/2

    Elbow 90 degrees 2x female thread 1 1/2

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  • Impeller pump bolt M4 x 8.00mm Stainless steel

    Impeller pump bolt M4 x 8.00mm Stainless steel

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  • Volvo kit DPH/DPR in magnesium with hardware

    Volvo kit DPH/DPR in magnesium with hardware

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  • Torqueedo engine anode 401-801 serie Zinc

    Torqueedo engine anode 401-801 serie Zinc

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  • Alamarine Jet small plate anode Zinc

    Alamarine Jet small plate anode Zinc

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  • Volkswagen marine potlood anode Ø 14 L. 20 plug th.18x1,5 wordt gebruikt in de motoren die worden beschreven en genoemd in de beschrijving hier onder.

    Volkswagen Marine Pencil anode Ø 14 L. 20 plug th.18×1,5

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  • Cummins pencil anode Zinc only Ø 12,5 L.30

    Cummins pencil anode Zinc only Ø 12,5 L.30

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  • Onan pencil anode zinc only Ø 10 L.30

    Onan pencil anode zinc only Ø 10 L.30

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  • Caterpillar pencil anode Ø 12 L.40 plug th. 3/8''bspt Zinc + Brass

    Caterpillar pencil anode Ø 12 L.40 plug th. 3/8”bspt Zinc + Brass

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  • Honda Small plate anode for 75-130-225HP Aluminium

    Honda Small plate anode for 75-130-225HP Aluminium

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  • Honda Small plate anode for 75-130-225HP Zinc

    Honda Small plate anode for 75-130-225HP Zinc

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  • Honda Bar anode for 40-50 HP Aluminium

    Honda Bar anode for 40-50 HP Aluminium

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  • Suzuki button anode Ø20 H.7 Magnesium

    Suzuki button anode Ø20 H.7 Magnesium

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  • Yamaha sterndrive TD Plate anode Zinc

    Yamaha sterndrive TD Plate anode Zinc

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  • Yamaha Cylinder Crankcase anode 80-100HP Zinc

    Yamaha Cylinder Crankcase anode 80-100HP Zinc

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  • Yamaha Outboard plate anode 2-6 hp Zinc

    Yamaha Outboard plate anode 2-6 hp Zinc

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  • America Bow Thruster propeller nut Ø80, Zinc

    America Bow Thruster propeller nut Ø80, Zinc

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  • Gori collar for 3-blade shaft Ø22''-26'', Zinc

    Gori collar for 3-blade shaft Ø22”-26”, Zinc

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  • Shaft anode Ø 30mm Magnesium

    Shaft anode Ø 30mm Magnesium

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The various types of cooling water systems

There are three types of cooling systems:

  1. Direct cooling: a cooling water system whereby water is pumped into the engine block by a impeller pump.
  2. Indirect cooling: a separate cooling water system (also called intercooling or heat exchanger system) in which there is coolant in the engine and cooling water is pumped through a heat exchanger by means of an impeller pump.
  3. Indirect keel cooling : a keel cooling system, in which cooling pipes with coolant run under the boat. With the latter system, a wet exhaust is not possible unless you have installed an additional impeller pump or electric pump.

Dry or wet exhaust?

Choose a wet exhaust. With a wet exhaust, the noise is muffled by the water. You can also use a rubber exhaust hose because of the lower temperature. <read more>