Cooling system

  • Coolant hose Straight 8 mm x 1.00 meter (5/16'')

    Coolant hose Straight 8 mm x 1.00 meter (5/16”)

    Sale! Original price was: €18,95.Current price is: €16,95. 3-5 working days    Add to cart
  • Coolant hose Straight 20 mm x 1.00 meter (13/16'')

    Coolant hose Straight 20 mm x 1.00 meter (13/16”)

    €21,95 3-5 working days    Add to cart
  • Impellerpomp Yanmar 3JH3/ 4JH2/ 4JH3 koelwaterpomp 129670-42512. Deze Impellerpomp is de beste pomp als vervanging voor uw Yanmar motor

    Impeller pump Yanmar 3JH3, 4JH2, 4JH3 Cooling water pump 129670-42512

    Sale! Original price was: €509,95.Current price is: €419,95. Same day shipping    Add to cart
  • Impeller pump Cummins QSB5.9, QSB6.9 Cooling water pump

    Impeller pump Cummins QSB5.9, QSB6.9 Cooling water pump

    Sale! Original price was: €799,95.Current price is: €659,95. Same day shipping    Add to cart
  • Lip seal 16x28x7 Impeller pump Viton Stainless steel spring

    Lip seal 16x28x7 Impeller pump Viton Stainless steel spring

    Sale! Original price was: €9,95.Current price is: €8,95. Same day shipping    Add to cart
  • air/water hose ø 13 mm

    air/water hose ø 13 mm

    Sale! Original price was: €2,09.Current price is: €1,79. Same day shipping    Add to cart
  • Yanmar pencil anode Ø20 L.55 Zinc

    Yanmar pencil anode Ø20 L.55 Zinc

    Sale! Original price was: €12,95.Current price is: €10,95. Same day shipping    Add to cart
  • Gori propeller nut Ø 18''- 20'', Zinc

    Gori propeller nut Ø 18”- 20”, Zinc

    Sale! Original price was: €4,95.Current price is: €3,99. Same day shipping    Add to cart
  • Bolt on anode 1kg with slotted holes H.C.200, Zinc

    Bolt on anode 1kg with slotted holes H.C.200, Zinc

    Sale! Original price was: €25,95.Current price is: €20,95. Same day shipping    Add to cart
  • Yanmar Collar anode for Saildrive, Magnesium

    Yanmar Collar anode for Saildrive, Magnesium

    Sale! Original price was: €24,95.Current price is: €20,95. Same day shipping    Add to cart
  • Volvo Penta Split collar anode Saildrive Aluminium, including bolts 22651246

    Volvo Penta Split collar anode Saildrive Aluminium, including bolts 22651246

    Sale! Original price was: €43,95.Current price is: €35,95. Same day shipping    Add to cart
  • Rubber seal Volvo Penta 831622 (per piece)

    Rubber seal Volvo Penta 831622 (per piece)

    Sale! Original price was: €12,95.Current price is: €10,95. Out of stock    Read more
  • Expansion vessel Martec 1.5L

    Expansion vessel Martec 1.5L

    Sale! Original price was: €58,95.Current price is: €48,95. Same day shipping    Add to cart
  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 1/2″ x 14mm

    Sale! Original price was: €4,95.Current price is: €3,95. Same day shipping    Add to cart
  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 1/2″ x 8mm

    Sale! Original price was: €7,95.Current price is: €5,95. Same day shipping    Add to cart
  • CR Brass Hose tail (male) 1"1/2 x 40mm

    CR Brass Hose tail (male) 1″1/2 x 40mm

    Sale! Original price was: €23,95.Current price is: €19,95. Same day shipping    Add to cart
  • CR Brass Through-hull outlet, inclined 1/2"

    CR Brass Through-hull outlet, inclined 1/2″

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • Sidepower - Sleipner propeller nut Ø25.6 H.15 Aluminium

    Sidepower – Sleipner propeller nut Ø25.6 H.15 Aluminium

    Sale! Original price was: €14,95.Current price is: €11,95. Same day shipping    Add to cart
  • R3 Mag Rudder Anode 3 3/4" Magnesium

    R3 Mag Rudder Anode 3 3/4″ Magnesium

    Sale! Original price was: €48,95.Current price is: €39,95. Same day shipping    Add to cart
  • Standard Shaft anode Ø 35mm, Zinc

    Standard Shaft anode Ø 35mm, Zinc

    Sale! Original price was: €21,95.Current price is: €18,95. Same day shipping    Add to cart
  • Welding anode 1kg Aluminium

    Welding anode 1kg Aluminium

    Sale! Original price was: €24,95.Current price is: €20,95. Same day shipping    Add to cart
  • CR Brass Water scoop 1/2"

    CR Brass Water scoop 1/2″

    Sale! Original price was: €32,95.Current price is: €27,95. Same day shipping    Add to cart
  • Hose clamp 50-65 mm

    Hose clamp 50-65 mm

    Sale! Original price was: €5,95.Current price is: €4,95. Same day shipping    Add to cart
  • Radiator cap small 0.5bar relief cap (57mm)

    Radiator cap small 0.5bar relief cap (57mm)

    Sale! Original price was: €15,95.Current price is: €13,95. 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>