Cooling system

  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 1/4″ x 8mm

    Sale! Original price was: €3,49.Current price is: €2,89. Same day shipping    Add to cart
  • Max Prop cone shape anode Zinc

    Max Prop cone shape anode Zinc

    Sale! Original price was: €44,95.Current price is: €36,95. Same day shipping    Add to cart
  • Vetus small collar anode for KGF75 and 95, Zinc

    Vetus small collar anode for KGF75 and 95, Zinc

    Sale! Original price was: €12,95.Current price is: €10,95. Same day shipping    Add to cart
  • Volvo Penta triangle anode plate, Aluminium

    Volvo Penta triangle anode plate, Aluminium

    Sale! Original price was: €3,89.Current price is: €3,19. Same day shipping    Add to cart
  • Volvo Penta outdrive bar for engine 290 duo prop Aluminium

    Volvo Penta outdrive bar for engine 290 duo prop Aluminium

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • Coolant hose Straight 8 mm x 1.00 meter (5/16'')

    Coolant hose Straight 8 mm x 1.00 meter (5/16”)

    Sale! Original price was: €21,95.Current price is: €17,95. 3-5 working days    Add to cart
  • Impellerpomp Yanmar 3JH3/ 4JH2/ 4JH3 koelwaterpomp 129670-42512. Deze Impellerpomp is de beste pomp als vervanging voor uw Yanmar motor

    Impeller pump Yanmar 3JH3, 4JH2, 4JH3 Cooling water pump 129670-42512

    €529,95 Out of stock    Read more
  • Volvo Penta expansion plug for cylinder head - 477024

    Volvo Penta expansion plug for cylinder head – 477024

    Sale! Original price was: €8,95.Current price is: €7,95. Same day shipping    Add to cart
  • Hose barb male thread 2" x 50 mm

    Hose barb male thread 2″ x 50 mm

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • Lombardini Split collar for Saildrive Zinc

    Lombardini Split collar for Saildrive Zinc

    Sale! Original price was: €25,95.Current price is: €21,95. Same day shipping    Add to cart
  • Yamaha cavitation plate anode 8 - 60hp Aluminium

    Yamaha cavitation plate anode 8 – 60hp Aluminium

    Sale! Original price was: €7,95.Current price is: €6,95. Same day shipping    Add to cart
  • Variprop propeller nut DF-112, Zinc

    Variprop propeller nut DF-112, Zinc

    Sale! Original price was: €33,95.Current price is: €27,95. Same day shipping    Add to cart
  • Gori propeller nut Ø 18''- 20'', Zinc

    Gori propeller nut Ø 18”- 20”, Zinc

    Sale! Original price was: €4,95.Current price is: €3,99. Same day shipping    Add to cart
  • Bolt on anode 1kg with slotted holes H.C.200, Zinc

    Bolt on anode 1kg with slotted holes H.C.200, Zinc

    Sale! Original price was: €25,95.Current price is: €20,95. Same day shipping    Add to cart
  • Disc anode single Ø140mm, Magnesium

    Disc anode single Ø140mm, Magnesium

    Sale! Original price was: €33,95.Current price is: €27,95. Same day shipping    Add to cart
  • Impeller pump Cummins ONAN Marine Generator 11/13.5kW Cooling water pump, ideal as a replacement for the Cummins Onan marine engines.

    Impeller pump Cummins ONAN Marine Generator MDKBK, MDKBL, MDKBM, MDKBN, MDKDK, MDKDM, MDKDN, 9 kW 9.5 kW 11.5 kW 11 kW 13.5 kW

    Sale! Original price was: €409,95.Current price is: €339,95. Same day shipping    Add to cart
  • CR Brass hose tail (male) 1"1/4 x 25mm

    CR Brass hose tail (male) 1″1/4 x 25mm

    Sale! Original price was: €18,95.Current price is: €15,95. Same day shipping    Add to cart
  • CR Brass Hose tail (male) 1"1/2 x 40mm

    CR Brass Hose tail (male) 1″1/2 x 40mm

    Sale! Original price was: €23,95.Current price is: €19,95. Same day shipping    Add to cart
  • CR Brass Through-hull outlet, inclined 1/2"

    CR Brass Through-hull outlet, inclined 1/2″

    Sale! Original price was: €15,95.Current price is: €12,95. Same day shipping    Add to cart
  • R3 Mag Rudder Anode 3 3/4" Magnesium

    R3 Mag Rudder Anode 3 3/4″ Magnesium

    Sale! Original price was: €48,95.Current price is: €39,95. Same day shipping    Add to cart
  • Shaft anode USA type Ø 45mm, Aluminium

    Shaft anode USA type Ø 45mm, Aluminium

    Sale! Original price was: €26,95.Current price is: €21,95. Same day shipping    Add to cart
  • Shaft anode USA type Ø 40mm, Aluminium

    Shaft anode USA type Ø 40mm, Aluminium

    Sale! Original price was: €23,95.Current price is: €19,95. Same day shipping    Add to cart
  • CR Brass Water scoop 1/2"

    CR Brass Water scoop 1/2″

    Sale! Original price was: €32,95.Current price is: €27,95. Same day shipping    Add to cart
  • Hose clamp 50-65 mm

    Hose clamp 50-65 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>