Cooling system

  • Volvo Penta Connector pipe exhaust bend 859836

    Volvo Penta Connector pipe exhaust bend 859836

    Sale! Original price was: €84,95.Current price is: €69,95. Same day shipping    Add to cart
  • Skin fitting brass 1 1/2

    Skin fitting brass 1 1/2

    Sale! Original price was: €26,95.Current price is: €21,95. Same day shipping    Add to cart
  • Hose barb INNER THREAD 1/2 x 13 mm

    Hose barb INNER THREAD 1/2 x 13 mm

    Sale! Original price was: €2,09.Current price is: €1,69. Same day shipping    Add to cart
  • Hose barb male thread 1/8 x 6 mm

    Hose barb male thread 1/8 x 6 mm

    Sale! Original price was: €0,89.Current price is: €0,79. Same day shipping    Add to cart
  • Sen-Dure pencil anode Ø 9,5 L. 44 plug th.1/4'' NPT Zinc + Brass

    Sen-Dure pencil anode Ø 9,5 L. 44 plug th.1/4” NPT Zinc + Brass

    Sale! Original price was: €9,95.Current price is: €7,95. Same day shipping    Add to cart
  • Max Prop anode for propeller with variable pitch Ø67,7 Zinc

    Max Prop anode for propeller with variable pitch Ø67,7 Zinc

    Sale! Original price was: €21,95.Current price is: €18,95. Same day shipping    Add to cart
  • Disc anode single Ø70mm with steel insert, Magnesium

    Disc anode single Ø70mm with steel insert, Magnesium

    Sale! Original price was: €37,95.Current price is: €31,95. Same day shipping    Add to cart
  • Mini hose clamp 7-9 mm Stainless steel A2 (W4)

    Mini hose clamp 7-9 mm Stainless steel A2 (W4)

    Sale! Original price was: €2,49.Current price is: €2,09. Same day shipping    Add to cart
  • Martec rubber 2" 50mm

    Martec rubber 2″ 50mm

    Sale! Original price was: €7,95.Current price is: €6,95. Same day shipping    Add to cart
  • CR Brass hose tail (male) 1" x 32mm

    CR Brass hose tail (male) 1″ x 32mm

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • Radice hexagonal prop nut (anode only) shaft Ø 22-25mm, Zinc

    Radice hexagonal prop nut (anode only) shaft Ø 22-25mm, Zinc

    Sale! Original price was: €8,95.Current price is: €7,95. Same day shipping    Add to cart
  • Mercury Anode kit for Alpha one Generation one, Aluminium

    Mercury Anode kit for Alpha one Generation one, Aluminium

    Sale! Original price was: €34,95.Current price is: €28,95. Same day shipping    Add to cart
  • Bolt-on Bar Anodes Vetus Type 25 250x63x29 H.C. 140, Magnesium

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

    Sale! Original price was: €43,95.Current price is: €34,95. Same day shipping    Add to cart
  • Impeller Puller universal

    Impeller Puller universal

    Sale! Original price was: €159,95.Current price is: €129,95. Same day shipping    Add to cart
  • CR Brass Elbow 90º female/male 1"

    CR Brass Elbow 90º female/male 1″

    Sale! Original price was: €19,95.Current price is: €16,95. 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: €189,95.Current price is: €154,95. Next day shipping    Add to cart
  • Rubber sleeve Heat exchanger Bowman 3186

    Rubber sleeve Heat exchanger Bowman 3186

    Sale! Original price was: €104,95.Current price is: €86,95. Same day shipping    Add to cart
  • Coolant hose Straight 45 mm x 1.00 meter (1 3/4'')

    Coolant hose Straight 45 mm x 1.00 meter (1 3/4”)

    €33,95 Same day shipping    Add to cart
  • Impeller pump Volvo Penta 2001, 2002 and 2003 Cooling water pump 840557

    Impeller pump Volvo Penta 2001, 2002 and 2003 Cooling water pump 840557

    Sale! Original price was: €399,95.Current price is: €329,95. Same day shipping    Add to cart
  • Pencil anode 1/8'' NPT complete Ø6.35 mm x 51 mm zinc + brass

    Pencil anode 1/8” NPT complete Ø6.35 mm x 51 mm zinc + brass

    Sale! Original price was: €7,95.Current price is: €6,95. Same day shipping    Add to cart
  • Quick propeller nut FOR BTQ185 Aluminium

    Quick propeller nut FOR BTQ185 Aluminium

    Sale! Original price was: €9,95.Current price is: €7,95. Same day shipping    Add to cart
  • Scania pencil anode Zinc only Ø 17 L.45

    Scania pencil anode Zinc only Ø 17 L.45

    €3,95 Out of stock    Read more
  • Flex-o-fold propeller prop side anodes Zinc

    Flex-o-fold propeller prop side anodes Zinc

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • Scandinavian type bolt-on anode 0,65kg Aluminium

    Scandinavian type bolt-on anode 0,65kg Aluminium

    Sale! Original price was: €17,95.Current price is: €14,95. 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>