Cooling system

  • CR Brass Elbow 45º female/male 1"1/4

    CR Brass Elbow 45º female/male 1″1/4

    Sale! Original price was: €21,95.Current price is: €18,95. Same day shipping    Add to cart
  • Volvo Penta MD3, MD11, MD17 coolant pump impeller (47.00 mm mounting hole) 3/8" thread ST138

    Volvo Penta MD3, MD11, MD17 coolant pump impeller (47.00 mm mounting hole) 3/8″ thread ST138

    Sale! Original price was: €289,95.Current price is: €239,95. Same day shipping    Add to cart
  • Water and Oil Seal 12x24x7 for Impeller Pump (Stainless Steel Spring)

    Water and Oil Seal 12x24x7 for Impeller Pump (Stainless Steel Spring)

    Sale! Original price was: €10,95.Current price is: €8,95. 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
  • Variprop propeller nut DF-80 Zinc

    Variprop propeller nut DF-80 Zinc

    Sale! Original price was: €16,95.Current price is: €13,95. Same day shipping    Add to cart
  • Disc Anode single Ø50mm Heavy, Zinc

    Disc Anode single Ø50mm Heavy, Zinc

    Sale! Original price was: €3,95.Current price is: €3,59. Same day shipping    Add to cart
  • Wyckomar Carbon Filter element XR2/XR3/UV700

    Wyckomar Carbon Filter element XR2/XR3/UV700

    Sale! Original price was: €31,95.Current price is: €26,95. Same day shipping    Add to cart
  • Mini hose clamp 7-9 mm Stainless steel A2 (W4)

    Mini hose clamp 7-9 mm Stainless steel A2 (W4)

    Sale! Original price was: €2,49.Current price is: €2,09. Same day shipping    Add to cart
  • Mini hose clamp 9-11 mm Stainless steel A2 (W4)

    Mini hose clamp 9-11 mm Stainless steel A2 (W4)

    Sale! Original price was: €2,59.Current price is: €2,19. Same day shipping    Add to cart
  • CR Brass Hose tail (male) 1"1/2 x 38mm

    CR Brass Hose tail (male) 1″1/2 x 38mm

    Sale! Original price was: €21,95.Current price is: €18,95. Same day shipping    Add to cart
  • CR Brass hose tail (male) 1" x 25mm

    CR Brass hose tail (male) 1″ x 25mm

    Sale! Original price was: €11,95.Current price is: €9,95. Same day shipping    Add to cart
  • CR Brass Through-hull outlet, inclined 1"1/4

    CR Brass Through-hull outlet, inclined 1″1/4

    Sale! Original price was: €43,95.Current price is: €35,95. 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: €69,95.Current price is: €57,95. Same day shipping    Add to cart
  • Hose clamp 11-17 mm

    Hose clamp 11-17 mm

    Sale! Original price was: €1,59.Current price is: €1,29. Same day shipping    Add to cart
  • Mercury Small plate anode for 6,9,9hp Zinc

    Mercury Small plate anode for 6,9,9hp Zinc

    Sale! Original price was: €6,95.Current price is: €4,95. 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: €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: €13,95.Current price is: €11,95. Same day shipping    Add to cart
  • CR Brass Hose tail (male) 1/2" x 20mm

    CR Brass Hose tail (male) 1/2″ x 20mm

    Sale! Original price was: €7,95.Current price is: €5,95. Same day shipping    Add to cart
  • Stainless steel hose clamp 80-100 mm screw clamp W5 12 mm wide

    Stainless steel hose clamp 80-100 mm screw clamp W5 12 mm wide

    Sale! Original price was: €4,95.Current price is: €3,99. Same day shipping    Add to cart
  • Impeller pump Bukh DV10, DV20, DV24 series - Cooling water pump - Intercooling engines (NB: bigger than the standard pump) ST135

    Impeller pump Bukh DV10, DV20, DV24 series – Cooling water pump – Intercooling engines (NB: bigger than the standard pump) ST135

    Sale! Original price was: €279,95.Current price is: €239,95. 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: €30,95.Current price is: €25,95. Same day shipping    Add to cart
  • Volvo Anode kit SXA/DPSA drives Magnesium

    Volvo Anode kit SXA/DPSA drives Magnesium

    Sale! Original price was: €59,95.Current price is: €49,95. Same day shipping    Add to cart
  • CR Brass Through-hull outlet Convex standard 1/2"

    CR Brass Through-hull outlet Convex standard 1/2″

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • Impeller Doosan: 65.06804-0001

    Impeller Doosan: 65.06804-0001

    Sale! Original price was: €109,95.Current price is: €92,95. 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>