Cooling system

  • Impeller Cummins 3916720 Mercruiser 47-853126

    Impeller Cummins 3916720 Mercruiser 47-853126

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  • air/water hose ø 25 mm

    air/water hose ø 25 mm

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  • Skin fitting brass 1 1/4

    Skin fitting brass 1 1/4

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  • Hose barb male thread 1/2 x 10 mm

    Hose barb male thread 1/2 x 10 mm

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  • Placeholder

    JMP Bolt BOL0163

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  • Quick small plate anode for BTQR Zinc

    Quick small plate anode for BTQR Zinc

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  • Caterpillar pencil anode Ø 16 L. 63 Zinc

    Caterpillar pencil anode Ø 16 L. 63 Zinc

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  • Volvo Penta pencil anode Ø15,5 L.40 plug th.1/2'' Bspt, Magnesium + Brass

    Volvo Penta pencil anode Ø15,5 L.40 plug th.1/2” Bspt, Magnesium + Brass

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  • Bolt on anode 0,8kg with slotted holes H.C.250, Aluminium

    Bolt on anode 0,8kg with slotted holes H.C.250, Aluminium

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  • weld on anode 0,55kg, Aluminium

    weld on anode 0,55kg, Aluminium

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  • Bolt-on Bar Anodes Vetus Type 15 150x60x25 H.C. 80, Magnesium

    Bolt-on Bar Anodes Vetus Type 15 150x60x25 H.C. 80, Magnesium

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  • Technodrive Sea Prop 60 Saildrive anode Magnesium Beta Marine - Solè Diesel - Nanni Diesel

    Technodrive Sea Prop 60 Saildrive anode Magnesium Beta Marine – Solè Diesel – Nanni Diesel

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  • Impellerpomp Volvo Penta MD22 MD22A  MD22P TMD22A Deze verbeterde koelwaterpomp is de ideale vervanging voor uw Volvo Penta impellerpomp

    Impeller pump Perkins, Volvo Penta MD22 ST149

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  • Impellerpomp Volvo Penta 4.3 Gl 5.0GL 5.7GL, 4.3GS 5.0GS 5.7GS, 4.3GI 5.0Gi

    Impeller pump Volvo Penta 4.3Gl 5.0GL 5.7GL 4.3GS 5.0GS 5.7GS 4.3GI 5.0Gi

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  • Glycomat cooling system antifreeze temperature tester -40°C

    Glycomat cooling system antifreeze temperature tester -40°C

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  • Water pump Electrical impeller pump 12V 35 L/min

    Water pump Electrical impeller pump 12V 35 L/min

    €479,95 Out of stock    Read more
  • Water lock with exhaust muffler 50 - 115hp Plastic Ø55 / 60 / 65mm connection

    Water lock with exhaust muffler 50 – 115hp Plastic Ø55 / 60 / 65mm connection

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  • Coolant hose 90° Curved hose 12 mm x 150 mm (1/2")

    Coolant hose 90° Curved hose 12 mm x 150 mm (1/2″)

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  • Impeller Seasall: S220/S250 Kashiyama: SP-170

    Impeller Seasall: S220/S250 Kashiyama: SP-170

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  • Impeller Northern Lights: 25-12009

    Impeller Northern Lights: 25-12009

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  • Gasket set Exhaust bend 861907 Volvo Penta MD2010, MD2020, MD2030, D1-20, D1-30

    Gasket set Exhaust bend 861907 Volvo Penta MD2010, MD2020, MD2030, D1-20, D1-30

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  • Volvo Penta expansion plug for cylinder head - 477024

    Freeze cap Freeze plug 49.21mm

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  • Skin fitting brass 1/2

    Skin fitting brass 1/2

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  • Hose barb male thread 1 1/2 x 50 mm

    Hose barb male thread 1 1/2 x 50 mm

    Sale! Original price was: €12,95.Current price is: €10,95. Same day shipping    Add to cart

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>