Cooling system

  • Impeller Volvo: 875660, 875736, 807904, 21730344, 804696, 825942, 897055, 875808-8 Yanmar: 127881-42050

    Impeller Volvo: 875660, 875736, 807904, 21730344, 804696, 825942, 897055, 875808-8 Yanmar: 127881-42050

    Sale! Original price was: €104,95.Current price is: €86,95. Same day shipping    Add to cart
  • Impeller JMP7500-01, Doosan60.06804-0003, Nikkiso FP-25

    Impeller JMP7500-01, Doosan60.06804-0003, Nikkiso FP-25

    Sale! Original price was: €89,95.Current price is: €74,95. Same day shipping    Add to cart
  • UV lamp puro C39 4P 38W 810mm Main Image

    UV lamp puro C39 4P 38W 810mm

    €129,95 Out of stock    Read more
  • Impeller Neoprene Ancor

    Impeller Neoprene Ancor

    Sale! Original price was: €21,95.Current price is: €18,95. Same day shipping    Add to cart
  • Hose barb male thread 1 1/2 x 50 mm

    Hose barb male thread 1 1/2 x 50 mm

    Sale! Original price was: €21,95.Current price is: €18,95. Same day shipping    Add to cart
  • Pencil anode zinc only Ø1/2'' L=1-1/4'' thread=1/4''UNC

    Pencil anode zinc only Ø1/2” L=1-1/4” thread=1/4”UNC

    Sale! Original price was: €13,95.Current price is: €11,95. Same day shipping    Add to cart
  • Caterpillar pencil anode Ø 10 L.55 plug th.1/4''bspt Zinc + Brass

    Caterpillar pencil anode Ø 10 L.55 plug th.1/4”bspt Zinc + Brass

    Sale! Original price was: €30,95.Current price is: €25,95. Same day shipping    Add to cart
  • Sidepower - Sleipner propeller nut SP30/40 Ø26 H.20, Aluminium

    Sidepower – Sleipner propeller nut SP30/40 Ø26 H.20, Aluminium

    Sale! Original price was: €11,95.Current price is: €9,95. 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: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • Shaft anode USA type Ø 38mm 1 1/2", Zinc

    Shaft anode USA type Ø 38mm 1 1/2″, Zinc

    €33,95 Same day shipping    Add to cart
  • Volvo Penta pencil anode Ø15.5 L.40 Magnesium

    Volvo Penta pencil anode Ø15.5 L.40 Magnesium

    Sale! Original price was: €3,95.Current price is: €3,49. Same day shipping    Add to cart
  • Stainless steel Through-hull outlet, ø 45mm, 45 degrees

    Stainless steel Through-hull outlet, ø 45mm, 45 degrees

    Sale! Original price was: €33,95.Current price is: €27,95. Same day shipping    Add to cart
  • Impellerpomp revisieset 0075 (klein) 21141637 is te gebruiken voor de revisie van de JMP Marine pomp als met de OEM-pompen van Volvo Penta.

    Impeller pump overhaul kit (small) 0075 21141637

    Sale! Original price was: €98,95.Current price is: €81,95. Same day shipping    Add to cart
  • Thermostat Yanmar Closed cooling system (75gr) 3HM Martec

    Thermostat Yanmar Closed cooling system (75gr) 3HM Martec

    Sale! Original price was: €64,95.Current price is: €54,95. Same day shipping    Add to cart
  • Mercruiser Bearing Carrier anode Aluminium

    Mercruiser Bearing Carrier anode Aluminium

    Sale! Original price was: €9,95.Current price is: €7,95. Same day shipping    Add to cart
  • Volvo Penta triangle anode plate, Magnesium

    Volvo Penta triangle anode plate, Magnesium

    Sale! Original price was: €6,95.Current price is: €5,95. Same day shipping    Add to cart
  • CR Brass Elbow 90º female/female 1/2"

    CR Brass Elbow 90º female/female 1/2″

    Sale! Original price was: €7,95.Current price is: €6,95. Same day shipping    Add to cart
  • Water lock with exhaust muffler 50 - 115hp Plastic Ø55 / 60 / 65mm connection

    Water lock with exhaust muffler 50 – 115hp Plastic Ø55 / 60 / 65mm connection

    Sale! Original price was: €174,95.Current price is: €144,95. Same day shipping    Add to cart
  • Water outlet muffler Ø 60mm Plastic

    Water outlet muffler Ø 60mm Plastic

    Sale! Original price was: €104,95.Current price is: €85,95. Same day shipping    Add to cart
  • Coolant hose Straight 50 mm x 1.00 meter (2'')

    Coolant hose Straight 50 mm x 1.00 meter (2”)

    Sale! Original price was: €63,95.Current price is: €52,95. 3-5 working days    Add to cart
  • Impellerpomp Yanmar 4JH serie koelwaterpomp Deze Impellerpomp is de betere pomp als vervanging voor uw Yanmar motor.

    Impeller pump Yanmar 4JH2 series coolant pump

    €469,95 Out of stock    Read more
  • Flexible cooling water hose 25-31mm 1.00m (Tubano)

    Flexible cooling water hose 25-31mm 1.00m (Tubano)

    Sale! Original price was: €134,95.Current price is: €114,95. 3-5 working days    Add to cart
  • Ball valve 2x female thread 1 1/2

    Ball valve 2x female thread 1 1/2

    Sale! Original price was: €49,95.Current price is: €41,95. Same day shipping    Add to cart
  • Hose barb male thread 1/2 x 13 mm

    Hose barb male thread 1/2 x 13 mm

    Sale! Original price was: €5,95.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>