Cooling system

  • Volvo Penta outdrive ring for engine 280 - 290 single prop Zinc

    Volvo Penta outdrive ring for engine 280 – 290 single prop Zinc

    Sale! Original price was: €28,95.Current price is: €23,95. Same day shipping
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  • Slim type Shaft collar Ø 38mm Aluminium

    Slim type Shaft collar Ø 38mm Aluminium

    Sale! Original price was: €17,95.Current price is: €14,95. Same day shipping
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  • Disc anode single Ø140mm, Zinc

    Disc anode single Ø140mm, Zinc

    Sale! Original price was: €49,95.Current price is: €41,95. Same day shipping
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  • Weld on anode 0.6kg, Zinc

    Weld on anode 0.6kg, Zinc

    Sale! Original price was: €14,95.Current price is: €11,95. Same day shipping
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  • CR Brass Socket female/female 1"1/4

    CR Brass Socket female/female 1″1/4

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping
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  • CR Brass Elbow 90º female/female 1"

    CR Brass Elbow 90º female/female 1″

    Sale! Original price was: €19,95.Current price is: €16,95. Same day shipping
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  • CR Brass Through-hull outlet 2" with hose tail 56mm

    CR Brass Through-hull outlet 2″ with hose tail 56mm

    Sale! Original price was: €79,95.Current price is: €65,95. Same day shipping
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  • Wierfilter Brons 2''met Anode l met een hoge filter capaciteit, van zeewater bestendig brons, met een gemakkelijk te demonteren opvangfilter.

    Weed filter Bronze 2” with anode l High filtering capacity

    Sale! Original price was: €779,95.Current price is: €649,95. Same day shipping
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  • Coolant hose Straight 10 mm x 1.00 meter (3/8'')

    Coolant hose Straight 10 mm x 1.00 meter (3/8”)

    19,95 3-5 working days
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  • Coolant hose 90° Curved hose 55 mm  x 300 mm  (2 1/8'')

    Coolant hose 90° Curved hose 55 mm x 300 mm (2 1/8”)

    37,95 3-5 working days
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  • Deze Impellerpomp Yanmar 6LPA-STP2/ STC koelwaterpomp is doorontwikkeld en verbeterd en dus de vervangende pomp voor uw Yanmar motor.

    Impeller pump Yanmar 6LPA-STP2/ STC Cooling water pump

    799,95 Same day shipping
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  • Impellerpomp Cummins QSM11 koelwaterpomp

    Impeller pump Cummins QSM11 Cooling water pump

    Sale! Original price was: €1.569,95.Current price is: €1.309,95. Same day shipping
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  • Impellerpomp Cummins 6CTA koelwaterpomp, de koelwaterpomp voor de Cummins marine motoren is ideaal voor het vervangen van de originele

    Impeller pump Cummins 6CTA Cooling water pump (16 degrees clockwise)

    Sale! Original price was: €849,95.Current price is: €709,95. Same day shipping
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  • Deze Impellerpomp Caterpillar 3304, 3304B, 3306, 3306B, D330C, D333C Koelwaterpomp is ideaal voor het vervangen van je originele versleten bootpomp.

    Impeller pump Caterpillar 3304, 3304B, 3306, 3306B, D330C, D333C Cooling water pump

    Sale! Original price was: €1.179,95.Current price is: €979,95. Same day shipping
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  • JMP Marine flexibel Impeller Volvo: 383045

    Impeller Volvo 3830459

    Sale! Original price was: €139,95.Current price is: €114,95. Same day shipping
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  • Bilge pump 12V 35L/min including float switch

    Bilge pump 12V 35L/min including float switch

    Sale! Original price was: €45,95.Current price is: €36,95. Out of stock
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  • Mounting plate Peugeot Indenor Impeller pump Round F5B-9-10-35231-1

    Mounting plate Peugeot Indenor Impeller pump Round F5B-9-10-35231-1

    Sale! Original price was: €134,95.Current price is: €109,95. Out of stock
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  • Caterpillar pencil anode Ø 12 L.40 plug 3/8'' BSPT aluminium

    Caterpillar pencil anode Ø 12 L.40 plug 3/8” BSPT aluminium

    Sale! Original price was: €21,95.Current price is: €18,95. Same day shipping
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  • Main battery switch 300A - Battery switch boat ON/OFF

    Main battery switch 300A – Battery switch boat ON/OFF

    Sale! Original price was: €42,95.Current price is: €34,95. 3-5 working days
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  • 24V Diaphragm pump 18.9 L/min 3.8 bar - Compact water pump for onboard water systems.

    24V Diaphragm pump 18.9 L/min 3.8 bar – Compact water pump for onboard water systems.

    Sale! Original price was: €159,95.Current price is: €134,95. Same day shipping
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  • Boat oil change system 12V

    Boat oil change system 12V

    Sale! Original price was: €144,95.Current price is: €124,95. Same day shipping
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  • Bilge pump switch - contactless - water level sensor

    Bilge pump switch – contactless – water level sensor

    Sale! Original price was: €51,95.Current price is: €42,95. Same day shipping
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  • Volvo Penta o-ring - 969415

    Volvo Penta o-ring – 969415

    Sale! Original price was: €7,95.Current price is: €5,95. Same day shipping
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  • Bukh seal water pump DV10/20 561B0129

    Bukh seal water pump DV10/20 561B0129

    Sale! Original price was: €15,95.Current price is: €12,95. 3-5 working days
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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>