Cooling system

  • Water outlet muffler Ø 45  Plastic

    Water outlet muffler Ø 45 Plastic

    Sale! Original price was: €109,95.Current price is: €91,95. Same day shipping
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  • Hose clamp 19-28 mm

    Hose clamp 19-28 mm

    Sale! Original price was: €3,95.Current price is: €3,59. Same day shipping
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  • Coolant hose Straight 20 mm x 1.00 meter (13/16'')

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

    22,95 3-5 working days
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  • Coolant hose 90° Curved hose 35 mm  x 300 mm  (1 3/8'')

    Coolant hose 90° Curved hose 35 mm x 300 mm (1 3/8”)

    23,95 Same day shipping
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  • Deze Impellerpomp Yanmar motor 6LP koelwaterpomp is doorontwikkeld en verbeterd en dus de vervangende pomp voor uw Yanmar motor.

    Impeller pump Yanmar engine 6LP Cooling water pump

    539,95 Out of stock
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  • JPR-V1000

    Impeller pump Volvo Penta AD31, AD41, MD31, KAD42, TAMD42, KAD44, Cooling water pump

    Sale! Original price was: €529,95.Current price is: €449,95. Same day shipping
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  • 8359K-01

    Impeller CAT: 2820683 Cummins: 4933742

    Sale! Original price was: €184,95.Current price is: €154,95. Same day shipping
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  • Skin fitting brass 1/4

    Skin fitting brass 1/4

    Sale! Original price was: €5,95.Current price is: €4,95. Same day shipping
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  • Volvo Penta 873412 M20X1.5 nut anode fixed propeller Zinc

    Volvo Penta 873412 M20X1.5 nut anode fixed propeller Zinc

    18,95 Same day shipping
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  • Volvo kit 290 Duo Prop in zinc with hardware

    Volvo kit 290 Duo Prop in zinc with hardware

    Sale! Original price was: €39,95.Current price is: €32,95. Same day shipping
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  • Hardware kit composed by fastening bolts and screw

    Hardware kit composed by fastening bolts and screw

    Sale! Original price was: €1,09.Current price is: €0,89. Same day shipping
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  • Hardware kit composed of fastening bolts and screws

    Hardware kit composed of fastening bolts and screws

    Sale! Original price was: €0,26.Current price is: €0,22. Same day shipping
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  • Quick propeller nut FOR BTQ185 Zinc

    Quick propeller nut FOR BTQ185 Zinc

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping
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  • Suzuki small plate anode for  Suzuki 2HP Magnesium

    Suzuki small plate anode for Suzuki 2HP Magnesium

    Sale! Original price was: €2,99.Current price is: €2,49. Same day shipping
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  • Suzuki small plate for DF25-DF300 Aluminium

    Suzuki small plate for DF25-DF300 Aluminium

    Sale! Original price was: €4,95.Current price is: €3,89. Same day shipping
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  • Gori propeller nut, type Ø 22''- 26'', Zinc

    Gori propeller nut, type Ø 22”- 26”, Zinc

    Sale! Original price was: €5,95.Current price is: €4,95. Same day shipping
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  • Shaft anode Ø  19mm - 3/4' Zinc

    Shaft anode Ø 19mm – 3/4′ Zinc

    Sale! Original price was: €18,95.Current price is: €15,95. Same day shipping
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  • Steel Washer for shaft 22-25

    Steel Washer for shaft 22-25

    Sale! Original price was: €1,39.Current price is: €1,19. Same day shipping
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  • Bolt on anode 2,2kg with slotted holes H.C.230, Zinc

    Bolt on anode 2,2kg with slotted holes H.C.230, Zinc

    53,95 Out of stock
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  • Disc anode single Ø125mm Heavy, Aluminium

    Disc anode single Ø125mm Heavy, Aluminium

    Sale! Original price was: €20,95.Current price is: €17,95. Same day shipping
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  • 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. Same day shipping
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  • CR Brass hose tail (male) 1" x 30mm

    CR Brass hose tail (male) 1″ x 30mm

    Sale! Original price was: €13,95.Current price is: €11,95. Same day shipping
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  • 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
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  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 1/2″ x 12mm

    Sale! Original price was: €4,95.Current price is: €3,95. Same day shipping
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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>