Cooling system

  • Reducing nipple 1/4 x 3/8"

    Reducing nipple 1/4 x 3/8″

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  • Connection nut with flange 11/2

    Connection nut with flange 11/2

    Sale! Original price was: €10,95.Current price is: €9,95. Same day shipping    Add to cart
  • DOUBLE nipple 3/4

    DOUBLE nipple 3/4

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  • Reducer RING female/male thread 1/2 x 1

    Reducer RING female/male thread 1/2 x 1

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  • Reducer RING female/male thread 3/4 x 1

    Reducer RING female/male thread 3/4 x 1

    Sale! Original price was: €4,95.Current price is: €3,99. Same day shipping    Add to cart
  • Reducer RING female/male thread 1/2 x 3/4

    Reducer RING female/male thread 1/2 x 3/4

    Sale! Original price was: €2,29.Current price is: €1,89. Same day shipping    Add to cart
  • T-piece 3x female thread 3/4

    T-piece 3x female thread 3/4

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  • Skin fitting BOL chrome plated 1

    Skin fitting BOL chrome plated 1

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  • Through the skin with STRAINER 1 1/4

    Through the skin with STRAINER 1 1/4

    Sale! Original price was: €42,95.Current price is: €34,95. Same day shipping    Add to cart
  • Elbow 90 DEGREES 2x female thread 1/4

    Elbow 90 DEGREES 2x female thread 1/4

    Sale! Original price was: €2,89.Current price is: €2,49. Same day shipping    Add to cart
  • Elbow 45 degrees 2x female thread 1"

    Elbow 45 degrees 2x female thread 1″

    Sale! Original price was: €11,95.Current price is: €9,95. Same day shipping    Add to cart
  • Cooling element 75-985 (Merc.6 cyl.)

    Cooling element 75-985 (Merc.6 cyl.)

    €569,95 Same day shipping    Add to cart
  • Rubber elbow Renault DTR40 DTN

    Rubber elbow Renault DTR40 DTN

    Sale! Original price was: €109,95.Current price is: €91,95. Same day shipping    Add to cart
  • Placeholder

    JMP Wear plate WER0024

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  • JMP snap ring 0006

    JMP snap ring 0006

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  • JMP Retainer 0013

    JMP Retainer 0013

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  • Placeholder

    JMP End cover COV0059

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  • Placeholder

    JMP End cover COV0049

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  • JMP End cover COV0047

    JMP End cover COV0047

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  • JMP Ball bearing BER0045

    JMP Ball bearing BER0045

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  • JMP Ball bearing BER0004

    JMP Ball bearing BER0004

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  • De-Icer Areator-anode Zinc

    De-Icer Areator-anode Zinc

    Sale! Original price was: €12,95.Current price is: €10,95. Same day shipping    Add to cart
  • Pencil anode complete Ø3/4'' L=2'' thread=3/4''NPT Zinc + Brass

    Pencil anode complete Ø3/4” L=2” thread=3/4”NPT Zinc + Brass

    Sale! Original price was: €16,95.Current price is: €13,95. Same day shipping    Add to cart
  • Pencil complete anode Ø1/2'' L=1-1/2'' thread=3/8"NPT Zinc + Brass

    Pencil complete anode Ø1/2” L=1-1/2” thread=3/8″NPT Zinc + Brass

    Sale! Original price was: €19,95.Current price is: €15,95. 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>