Cooling system

  • Volvo Penta Split collar anode for Saildrive Zinc (without bolts)

    Volvo Penta Split collar anode for Saildrive Zinc (without bolts)

    Sale! Original price was: €46,95.Current price is: €37,95. Same day shipping    Add to cart
  • Tear drop bolt-on anode 0.6kg with slotted holes H.C.200, Aluminium

    Tear drop bolt-on anode 0.6kg with slotted holes H.C.200, Aluminium

    Sale! Original price was: €18,95.Current price is: €15,95. Same day shipping    Add to cart
  • Slim type Shaft collar Ø 40mm, Aluminium

    Slim type Shaft collar Ø 40mm, Aluminium

    Sale! Original price was: €11,95.Current price is: €9,95. Same day shipping    Add to cart
  • Vetus Bolt-on Bar Anodes Vetus Type 15 150x60x25 H.C. 80, Aluminium

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

    Sale! Original price was: €26,95.Current price is: €22,95. Same day shipping    Add to cart
  • Hose barb male thread 3/8 x 8 mm

    Hose barb male thread 3/8 x 8 mm

    Sale! Original price was: €1,69.Current price is: €1,39. Same day shipping    Add to cart
  • Mercury Anode kit for Alpha one Generation two, Magnesium

    Mercury Anode kit for Alpha one Generation two, Magnesium

    Sale! Original price was: €73,95.Current price is: €59,95. Same day shipping    Add to cart
  • CR Brass Elbow 90º female/male 1/2"

    CR Brass Elbow 90º female/male 1/2″

    Sale! Original price was: €7,95.Current price is: €6,95. Same day shipping    Add to cart
  • Yamaha Cylinder Crankcase anode 25-250HP Zinc

    Yamaha Cylinder Crankcase anode 25-250HP Zinc

    Sale! Original price was: €3,89.Current price is: €3,19. Same day shipping    Add to cart
  • Volvo Penta Kraag-anode voor 2 blads klapschroef Zinc

    Volvo Penta Kraag-anode voor 2 blads klapschroef Zinc

    Sale! Original price was: €7,95.Current price is: €6,95. Same day shipping    Add to cart
  • Hose clamp 32-44 mm

    Hose clamp 32-44 mm

    Sale! Original price was: €4,95.Current price is: €3,99. Same day shipping    Add to cart
  • Impellerpomp Volvo Penta D2-55, D2-75, koelwaterpomp Door hoogwaardig materiaal gebruik is onze Impellerpomp de verbetering van het origineel

    Impeller pump Volvo Penta D2-55, D2-75, Cooling water pump

    €419,95 Same day shipping    Add to cart
  • Impellerpomp Caterpiller 3116/ 3126/ C7/ C9 Deze koelwaterpomp Caterpiller marine motoren is ideaal voor het vervangen van de originele

    Impeller pump Caterpillar 3116, 3126, C7, C9 Cooling water pump

    Sale! Original price was: €819,95.Current price is: €679,95. Same day shipping    Add to cart
  • Yanmar pencil anode Ø20 L.20 zinc

    Yanmar pencil anode Ø20 L.20 zinc

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping    Add to cart
  • Curved Coolant hose 90° 32 mm x 200 mm (1-1/4'')

    Curved Coolant hose 90° 32 mm x 200 mm (1-1/4”)

    €19,95 Same day shipping    Add to cart
  • Skin fitting brass 1

    Skin fitting brass 1

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 3/8″ x 15mm

    Sale! Original price was: €4,95.Current price is: €3,99. Same day shipping    Add to cart
  • Radice conical prop nut (anode only) shaft Ø 22-25mm, Zinc

    Radice conical prop nut (anode only) shaft Ø 22-25mm, Zinc

    Sale! Original price was: €7,95.Current price is: €5,95. Same day shipping    Add to cart
  • Mercury Anode kit for Alpha one Generation one, Magnesium

    Mercury Anode kit for Alpha one Generation one, Magnesium

    Sale! Original price was: €41,95.Current price is: €33,95. Same day shipping    Add to cart
  • CR Brass Through-hull outlet 1/2" with hose tail 19mm

    CR Brass Through-hull outlet 1/2″ with hose tail 19mm

    Sale! Original price was: €17,95.Current price is: €14,95. Same day shipping    Add to cart
  • Hose barb male thread 1 1/2 x 38 mm

    Hose barb male thread 1 1/2 x 38 mm

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping    Add to cart
  • Scandinavian type bolt-on anode 0,25kg Aluminium

    Scandinavian type bolt-on anode 0,25kg Aluminium

    Sale! Original price was: €8,95.Current price is: €6,95. Same day shipping    Add to cart
  • Coolant hose Straight 25 mm x 1.00 meter (1'')

    Coolant hose Straight 25 mm x 1.00 meter (1”)

    €14,95 Same day shipping    Add to cart
  • #112

    Flexofold – screw propeller anode, Aluminium

    Sale! Original price was: €20,95.Current price is: €17,95. Same day shipping    Add to cart
  • Mercury/Mercruiser Flat trim tab anode Magnesium

    Mercury/Mercruiser Flat trim tab anode Magnesium

    Sale! Original price was: €11,95.Current price is: €9,95. 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>