Cooling system

  • 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
  • Reggiani prop nut shaft Ø30, Zinc

    Reggiani prop nut shaft Ø30, Zinc

    Sale! Original price was: €12,95.Current price is: €10,95. Same day shipping    Add to cart
  • Tear drop weld-on anode 1.2kg, Aluminium

    Tear drop weld-on anode 1.2kg, Aluminium

    Sale! Original price was: €26,95.Current price is: €22,95. Same day shipping    Add to cart
  • CR Brass Elbow 45º female/male 1"

    CR Brass Elbow 45º female/male 1″

    Sale! Original price was: €16,95.Current price is: €13,95. Same day shipping    Add to cart
  • Stainless steel Outlet Through-hull ø 60mm, straight

    Stainless steel Outlet Through-hull ø 60mm, straight

    Sale! Original price was: €52,95.Current price is: €43,95. Same day shipping    Add to cart
  • Impeller pump Westerbeke 42175, Sherwood G903, G908, G-908, G908-01

    Impeller pump Westerbeke 42175, Sherwood G903, G908, G-908, G908-01

    Sale! Original price was: €479,95.Current price is: €399,95. Same day shipping    Add to cart
  • Rubber sleeve Heat exchanger Bowman 3251 51/70/22

    Rubber sleeve Heat exchanger Bowman 3251 51/70/22

    Sale! Original price was: €104,95.Current price is: €86,95. Same day shipping    Add to cart
  • Coolant hose Straight 18 mm x 1.00 meter (11/16'')

    Coolant hose Straight 18 mm x 1.00 meter (11/16”)

    €20,95 3-5 working days    Add to cart
  • Coolant hose 90° Curved hose 40 mm x 300 mm (1 9/16'')

    Coolant hose 90° Curved hose 40 mm x 300 mm (1 9/16”)

    Sale! Original price was: €39,95.Current price is: €32,95. Same day shipping    Add to cart
  • Impeller pump Vetus VH4.65 en VH4.80, Craftsman Marine CM4.65 and CM4.80 Cooling water pump

    Impeller pump Vetus VH4.65 en VH4.80, Craftsman Marine CM4.65 and CM4.80 Cooling water pump

    Sale! Original price was: €289,95.Current price is: €249,95. Same day shipping    Add to cart
  • Impellerpomp Scania D9, DI12, DI13, DI16 Deze koelwaterpomp voor de Scania marine motoren is ideaal voor het vervangen van de originele pomp

    Impeller pump Scania D9, DI12, DI13, DI16 Cooling water pump

    Sale! Original price was: €1.239,95.Current price is: €1.029,95. Same day shipping    Add to cart
  • Impeller Doosan: 60.06804-0010 Cummins: 146892

    Impeller Doosan: 60.06804-0010 Cummins: 146892

    Sale! Original price was: €76,95.Current price is: €63,95. Same day shipping    Add to cart
  • 950-42

    Martec Hose Clamp Stainless Steel 13-20 mm

    Sale! Original price was: €3,59.Current price is: €2,99. 3-5 working days    Add to cart
  • Impeller pump cover screws 6x M4 with wing nuts

    Impeller pump cover screws 6x M4 with wing nuts

    Sale! Original price was: €25,95.Current price is: €21,95. Same day shipping    Add to cart
  • Brass contra nut 1/2

    Brass contra nut 1/2

    Sale! Original price was: €3,49.Current price is: €2,99. Next day shipping    Add to cart
  • Water pump cover

    Water pump cover

    €11,95 Same day shipping    Add to cart
  • Ball valve 3 way L-bore LIGHT 1/2

    Ball valve 3 way L-bore LIGHT 1/2

    Sale! Original price was: €32,95.Current price is: €26,95. 3-5 working days    Add to cart
  • Hose barb male thread 1 1/2 x 45 mm

    Hose barb male thread 1 1/2 x 45 mm

    Sale! Original price was: €11,95.Current price is: €9,95. Same day shipping    Add to cart
  • Hose barb INNER THREAD 3/4 x 20 mm

    Hose barb INNER THREAD 3/4 x 20 mm

    Sale! Original price was: €3,49.Current price is: €2,99. Same day shipping    Add to cart
  • Hose barb male thread 2" x 45 mm

    Hose barb male thread 2″ x 45 mm

    Sale! Original price was: €17,95.Current price is: €14,95. Same day shipping    Add to cart
  • Hose barb male thread 3/4 x 13 mm

    Hose barb male thread 3/4 x 13 mm

    Sale! Original price was: €3,49.Current price is: €2,99. Same day shipping    Add to cart
  • JMP Mechanical seal kit MCSSET0003

    JMP Mechanical seal kit MCSSET0003

    Sale! Original price was: €41,95.Current price is: €33,95. Same day shipping    Add to cart
  • Volvo Penta 873412 M20X1.5 nut anode fixed propeller Zinc

    Volvo Penta 873412 M20X1.5 nut anode fixed propeller Zinc

    Sale! Original price was: €18,95.Current price is: €15,95. Same day shipping    Add to cart
  • Hamilton Jet Washer for HJ 292, HJ3 62 Zinc

    Hamilton Jet Washer for HJ 292, HJ3 62 Zinc

    Sale! Original price was: €12,95.Current price is: €10,95. 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>