Cooling system

  • Volvo Penta expansion plug for cylinder head - 477024

    Freeze cap Freeze plug 41.28mm

    Sale! Original price was: €4,95.Current price is: €3,95. Next day shipping    Add to cart
  • Volvo Penta D2-50, D2-55, MD22 exhaust bend 21424345

    Volvo Penta D2-50, D2-55, MD22 exhaust bend 21424345

    Sale! Original price was: €309,95.Current price is: €259,95. 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
  • Water pump cover

    Water pump cover

    Sale! Original price was: €13,95.Current price is: €10,95. Same day shipping    Add to cart
  • Ball valve female/male thread 1

    Ball valve female/male thread 1

    Sale! Original price was: €16,95.Current price is: €13,95. Same day shipping    Add to cart
  • Yanmar pencil anodes kit: Hardware and brackets included, Zinc

    Yanmar pencil anodes kit: Hardware and brackets included, Zinc

    Sale! Original price was: €59,95.Current price is: €49,95. Same day shipping    Add to cart
  • OMC kit Cobra Magnesium

    OMC kit Cobra Magnesium

    Sale! Original price was: €47,95.Current price is: €38,95. Out of stock    Read more
  • Hamilton short oval plate anode for Idrojet 292 Zinc

    Hamilton short oval plate anode for Idrojet 292 Zinc

    Sale! Original price was: €13,95.Current price is: €10,95. Same day shipping    Add to cart
  • Bukh-Saildrive kraag anode DV10, DV20, DV36, DV48 zink

    Bukh-Saildrive Collar anode DV10, DV20, DV36, DV48

    Sale! Original price was: €30,95.Current price is: €25,95. Same day shipping    Add to cart
  • Caterpillar pencil anode Ø 9 L.35 Zinc

    Caterpillar pencil anode Ø 9 L.35 Zinc

    Sale! Original price was: €8,95.Current price is: €7,95. 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
  • Shaft collar Ø 35mm Magnesium

    Shaft collar Ø 35mm Magnesium

    Sale! Original price was: €9,95.Current price is: €7,95. Same day shipping    Add to cart
  • Scandinavian type bolt-on anode 0,25kg, Zinc

    Scandinavian type bolt-on anode 0,25kg, Zinc

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping    Add to cart
  • Thermostat Volvo Penta 2001, 2002, 2003 Closed cooling system

    Thermostat Volvo Penta 2001, 2002, 2003 Closed cooling system

    Sale! Original price was: €46,95.Current price is: €37,95. Same day shipping    Add to cart
  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 3/4″ x 13mm

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping    Add to cart
  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 1/2″ x 10mm

    Sale! Original price was: €4,95.Current price is: €3,99. Same day shipping    Add to cart
  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 3/8″ x 18mm

    Sale! Original price was: €5,95.Current price is: €4,95. Same day shipping    Add to cart
  • CR Brass Through-hull outlet, inclined 1"1/2

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

    Sale! Original price was: €55,95.Current price is: €45,95. Same day shipping    Add to cart
  • CR Brass Through-hull outlet, flushed 3/4"

    CR Brass Through-hull outlet, flushed 3/4″

    Sale! Original price was: €23,95.Current price is: €19,95. 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
  • Mercury standard trim tab anode Aluminium

    Mercury standard trim tab anode Aluminium

    Sale! Original price was: €11,95.Current price is: €9,95. Same day shipping    Add to cart
  • Bolt-on Bar Anodes Vetus Type 25 250x63x29 H.C. 140, Aluminium

    Bolt-on Bar Anodes Vetus Type 25 250x63x29 H.C. 140, Aluminium

    Sale! Original price was: €49,95.Current price is: €41,95. Same day shipping    Add to cart
  • CR Brass Elbow 45º female/male 1/2"

    CR Brass Elbow 45º female/male 1/2″

    Sale! Original price was: €9,95.Current price is: €8,95. Same day shipping    Add to cart
  • CR Brass Elbow 90º female/male 3/8"

    CR Brass Elbow 90º female/male 3/8″

    Sale! Original price was: €6,95.Current price is: €4,95. 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>