Cooling system

  • Hose barb male thread 3/8 x 16 mm

    Hose barb male thread 3/8 x 16 mm

    Sale! Original price was: €1,89.Current price is: €1,59. Same day shipping    Add to cart
  • Sidepower - Sleipner propeller nut SE130/170 - SP240/285 Zinc

    Sidepower – Sleipner propeller nut SE130/170 – SP240/285 Zinc

    Sale! Original price was: €13,95.Current price is: €11,95. Same day shipping    Add to cart
  • Suzuki small plate anode for Suzuki 2HP Zinc

    Suzuki small plate anode for Suzuki 2HP Zinc

    Sale! Original price was: €2,19.Current price is: €1,89. Same day shipping    Add to cart
  • Bolt on anode 0,45kg with slotted holes H.C.200, Aluminium

    Bolt on anode 0,45kg with slotted holes H.C.200, Aluminium

    Sale! Original price was: €11,95.Current price is: €9,95. Same day shipping    Add to cart
  • Zink Anode 1/4 "- 40.00 mm Martec

    Zinc anode 1/4 (bsp) Martec 950-7301

    Sale! Original price was: €21,95.Current price is: €18,95. Same day shipping    Add to cart
  • Hose clamp 44-56 mm

    Hose clamp 44-56 mm

    Sale! Original price was: €4,95.Current price is: €3,95. Same day shipping    Add to cart
  • Hose clamp 38-50 mm

    Hose clamp 38-50 mm

    Sale! Original price was: €4,95.Current price is: €3,99. Same day shipping    Add to cart
  • Rubber sleeve Heat exchanger Bowman 3365 51 / 22

    Rubber sleeve Heat exchanger Bowman 3365 51 / 22

    Sale! Original price was: €71,95.Current price is: €59,95. Same day shipping    Add to cart
  • Coolant hose 90° Curved hose 18 mm x 150 mm (11/16")

    Coolant hose 90° Curved hose 18 mm x 150 mm (11/16″)

    Sale! Original price was: €14,95.Current price is: €12,95. Same day shipping    Add to cart
  • Impeller Volvo Penta 835512, 3854286 Westerbeke: 33104, 11907

    Impeller Volvo Penta 835512, 3854286 Westerbeke: 33104, 11907

    Sale! Original price was: €25,95.Current price is: €21,95. Same day shipping    Add to cart
  • Ball valve 2x female thread 3/4

    Ball valve 2x female thread 3/4

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping    Add to cart
  • Slim type Shaft collar anode Ø 25mm, Aluminium

    Slim type Shaft collar anode Ø 25mm, Aluminium

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • Impellerpomp Deksel Pakking 2369 Vervangt u de Impeller? Dit is de pakking voor de deksel van uw Jabsco, Johnson, Jmp, Ancor, koelwaterpomp

    Impeller pump Cover Gasket 2368 64mm 6 holes

    Sale! Original price was: €0,99.Current price is: €0,89. Same day shipping    Add to cart
  • A3-727

    Bowman A3/727 Polar

    Sale! Original price was: €25,95.Current price is: €21,95. Same day shipping    Add to cart
  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 1/4″ x 12mm

    Sale! Original price was: €3,59.Current price is: €2,99. Same day shipping    Add to cart
  • CR Brass hose tail (male) 1"1/4 x 32mm

    CR Brass hose tail (male) 1″1/4 x 32mm

    Sale! Original price was: €18,95.Current price is: €15,95. Same day shipping    Add to cart
  • Mercury Anode kit Bravo III -2004 to present, Aluminium

    Mercury Anode kit Bravo III -2004 to present, Aluminium

    Sale! Original price was: €64,95.Current price is: €54,95. Same day shipping    Add to cart
  • Stainless steel Outlet Through-hull ø 51mm, straight

    Stainless steel Outlet Through-hull ø 51mm, straight

    Sale! Original price was: €33,95.Current price is: €28,95. Same day shipping    Add to cart
  • Impeller Doosan: 65.06804-0001

    Impeller Doosan: 65.06804-0001

    Sale! Original price was: €95,95.Current price is: €79,95. Same day shipping    Add to cart
  • Hose barb male thread 1/4 x 8 mm

    Hose barb male thread 1/4 x 8 mm

    Sale! Original price was: €1,09.Current price is: €0,89. Same day shipping    Add to cart
  • Hose barb male thread 1/2 x 8 mm

    Hose barb male thread 1/2 x 8 mm

    Sale! Original price was: €2,49.Current price is: €2,09. Same day shipping    Add to cart
  • Sidepower - Sleipner propeller nut SP30/40 Ø26 H.20, Zinc

    Sidepower – Sleipner propeller nut SP30/40 Ø26 H.20, Zinc

    Sale! Original price was: €2,29.Current price is: €1,89. Same day shipping    Add to cart
  • Yanmar collar for Saildrive, Stainless Steel

    Yanmar collar for Saildrive, Stainless Steel

    Sale! Original price was: €31,95.Current price is: €25,95. Same day shipping    Add to cart
  • Mercury Anode kit Bravo II-III, Magnesium

    Mercury Anode kit Bravo II-III, Magnesium

    Sale! Original price was: €57,95.Current price is: €47,95. 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>