Cooling parts

  • MTF propeller nut replacement for shaft Ø35-50 Zinc

    9,95 Same day shipping
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  • Riva propeller nut replacement for shaft Ø35-50 Zinc

    Sale! Original price was: €12,95.Current price is: €10,95. Same day shipping
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  • VLT series – prop anode Ø130 H.90, Zinc

    489,95 Out of stock
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  • MTF propeller nut replacement for shaft Ø20-30 Zinc

    4,95 Out of stock
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  • Riva propeller nut replacement for shaft Ø20-30 Zinc

    Sale! Original price was: €5,95.Current price is: €4,95. Same day shipping
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  • Steel Washer for shaft 100

    Sale! Original price was: €5,95.Current price is: €4,95. Same day shipping
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  • Radice out of standard exagonal prop nut hole 10

    419,95 Out of stock
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  • Radice exagonal prop nut shaftØ 100mm Zinc

    419,95 Same day shipping
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  • Radice conical prop nut shaftØ 100mm Aluminium

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  • Radice out of standard conical prop nut thread 42×3 LH Zinc

    389,95 Out of stock
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  • Radice out of standard conical prop nut thread 42×3 Zinc

    389,95 Out of stock
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  • Radice out of standard conical prop nut thread 48×3 LH Zinc

    389,95 Out of stock
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  • Radice out of standard conical prop nut thread 48×3 Zinc

    389,95 Out of stock
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  • Radice out of standard conical prop nut thread Ø 54X2,5 Zinc

    389,95 Out of stock
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  • Radice out of standard conical prop nut thread Ø 45X2,5 Zinc

    389,95 Out of stock
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  • Radice out of standard conical prop nut w/hole Ø12 Zinc

    389,95 Out of stock
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  • Radice conical prop nut (with Brass plug) thread Ø 38X2,5 Zinc

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  • Radice conical prop nut shaftØ 100mm Zinc

    389,95 Out of stock
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  • Radice out of standard conical prop nut with hole Ø12 Zinc

    279,95 Out of stock
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  • Steel Washer for shaft 60

    Sale! Original price was: €4,95.Current price is: €3,79. Same day shipping
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  • Radice out of standard exagonal prop nut hole 12 Zinc

    Sale! Original price was: €279,95.Current price is: €229,95. Same day shipping
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  • Radice out of standard exagonal prop nut thread 42×2 Zinc

    279,95 Out of stock
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  • Radice out of standard exagonal prop nut thread 42×3 Zinc

    279,95 Out of stock
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  • Radice out of standard exagonal prop nut thread 34×2 Zinc

    279,95 Out of stock
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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>