Cooling system

  • Shaft anode Heavy duty Ø 25mm, Zinc

    Shaft anode Heavy duty Ø 25mm, Zinc

    Sale! Original price was: €41,95.Current price is: €33,95. Same day shipping    Add to cart
  • Mercury Anode kit for Bravo one Aluminium

    Mercury Anode kit for Bravo one Aluminium

    Sale! Original price was: €54,95.Current price is: €45,95. Same day shipping    Add to cart
  • Mercruiser Nut for outdrive Magnesium

    Mercruiser Nut for outdrive Magnesium

    Sale! Original price was: €3,69.Current price is: €3,09. Same day shipping    Add to cart
  • Volvo Penta outdrive bar for engine 290 duo prop Magnesium

    Volvo Penta outdrive bar for engine 290 duo prop Magnesium

    Sale! Original price was: €22,95.Current price is: €19,95. Same day shipping    Add to cart
  • koelwaterpomp impellerpomp Lombardini (conische as) voor deze Lombardini marine motoren is dit de ideale vervangen van de originele.

    Impeller pump Lombardini LDW series (conical shaft) ST139

    Sale! Original price was: €309,95.Current price is: €259,95. Same day shipping    Add to cart
  • CR Brass Elbow 45º female/male 3/8"

    CR Brass Elbow 45º female/male 3/8″

    Sale! Original price was: €8,95.Current price is: €7,95. Same day shipping    Add to cart
  • CR Brass Through-hull outlet 1" with hose tail 30mm

    CR Brass Through-hull outlet 1″ with hose tail 30mm

    Sale! Original price was: €33,95.Current price is: €27,95. Same day shipping    Add to cart
  • Rubber sleeve Heat exchanger Bowman 3716 51/32

    Rubber sleeve Heat exchanger Bowman 3716 51/32

    Sale! Original price was: €71,95.Current price is: €59,95. Same day shipping    Add to cart
  • Coolant hose 90° Curved hose 28 mm x 150 mm (1 1/8'')

    Coolant hose 90° Curved hose 28 mm x 150 mm (1 1/8”)

    €18,95 3-5 working days    Add to cart
  • Impeller pump John Deere 4039, 4045, 6068 Cooling water pump

    Impeller pump John Deere 4039, 4045, 6068 Cooling water pump

    €539,95 Out of stock    Read more
  • Martec closed circuit cooling system Volvo MD6, MD7, Heat exchanger converting kit

    Martec closed circuit cooling system Volvo MD6, MD7, Heat exchanger converting kit

    Sale! Original price was: €1.089,95.Current price is: €895,95. 3-5 working days    Add to cart
  • Bilge pump 12V 45L/min including float switch

    Bilge pump 12V 45L/min including float switch

    Sale! Original price was: €38,95.Current price is: €32,95. Out of stock    Read more
  • 950-42

    Martec Hose Clamp Stainless Steel 8-14 mm

    Sale! Original price was: €2,99.Current price is: €2,49. 3-5 working days    Add to cart
  • 950-42

    Martec Hose Clamp Stainless Steel 19-28 mm

    Sale! Original price was: €3,95.Current price is: €3,79. 3-5 working days    Add to cart
  • 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. Same day shipping    Add to cart
  • Volvo Penta expansion plug for cylinder head - 477024

    Freezer cup 16.00mm freeze cap

    Sale! Original price was: €3,99.Current price is: €3,29. Next day shipping    Add to cart
  • Impeller Neoprene Ancor

    Impeller Neoprene Ancor

    Sale! Original price was: €21,95.Current price is: €17,95. Same day shipping    Add to cart
  • CD07326

    Impeller pump cover Jabsco 29440-1001 (replaces 22770 and 22620)

    Sale! Original price was: €43,95.Current price is: €35,95. Same day shipping    Add to cart
  • Water pump cover

    Water pump cover

    Sale! Original price was: €13,95.Current price is: €10,95. Same day shipping    Add to cart
  • Hose barb male thread 1 1/4 x 40 mm

    Hose barb male thread 1 1/4 x 40 mm

    Sale! Original price was: €8,95.Current price is: €7,95. 3-5 working days    Add to cart
  • Hose barb INNER THREAD 1/2 x 16 mm

    Hose barb INNER THREAD 1/2 x 16 mm

    Sale! Original price was: €4,95.Current price is: €3,95. Same day shipping    Add to cart
  • Hose barb INNER THREAD 1/2 x 20 mm

    Hose barb INNER THREAD 1/2 x 20 mm

    Sale! Original price was: €3,29.Current price is: €2,69. Same day shipping    Add to cart
  • Brass end cap socket female thread 1/2

    Brass end cap socket female thread 1/2

    Sale! Original price was: €1,69.Current price is: €1,49. Same day shipping    Add to cart
  • DOUBLE nipple 11/2

    DOUBLE nipple 11/2

    Sale! Original price was: €7,95.Current price is: €6,95. 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>