Cooling system

  • CR Brass Hose tail (male) 2" x 51mm

    CR Brass Hose tail (male) 2″ x 51mm

    Sale! Original price was: €34,95.Current price is: €28,95. Same day shipping    Add to cart
  • Slim type Shaft collar Ø 50mm, Zinc

    Slim type Shaft collar Ø 50mm, Zinc

    Sale! Original price was: €19,95.Current price is: €16,95. Same day shipping    Add to cart
  • Slim type Shaft collar Ø 40mm, Zinc

    Slim type Shaft collar Ø 40mm, Zinc

    Sale! Original price was: €18,95.Current price is: €15,95. Same day shipping    Add to cart
  • Weld on anode 2.2kg, Zinc

    Weld on anode 2.2kg, Zinc

    Sale! Original price was: €56,95.Current price is: €47,95. Same day shipping    Add to cart
  • CR Brass Socket female/female 1"

    CR Brass Socket female/female 1″

    Sale! Original price was: €11,95.Current price is: €9,95. Same day shipping    Add to cart
  • Impeller pump foot mounted universal 268 L/min

    Impeller pump foot mounted universal 268 L/min

    Sale! Original price was: €659,95.Current price is: €549,95. Same day shipping    Add to cart
  • Plastic goose-neck 180º

    Plastic goose-neck 180º

    Sale! Original price was: €104,95.Current price is: €86,95. Out of stock    Read more
  • Coolant hose 90° Curved hose 30 mm x 200 mm (1 3/16'')

    Coolant hose 90° Curved hose 30 mm x 200 mm (1 3/16”)

    €18,95 Same day shipping    Add to cart
  • Impeller pump Volvo Penta, TAMD61, TAMD71, MD100, TAMD102, MD120, TMD100, Cooling water pump.

    Impeller pump Volvo Penta, TAMD61, TAMD71, MD100, TAMD102, MD120, TMD100, Cooling water pump.

    Sale! Original price was: €1.099,95.Current price is: €919,95. Same day shipping    Add to cart
  • Impeller pump Volvo Penta TAMD162, TAMD163, TAMD165 (3837935, 3825493)

    Impeller pump Volvo Penta TAMD162, TAMD163, TAMD165 (3837935, 3825493)

    €1.649,95 Out of stock    Read more
  • Impeller pump Detroit Diesel 6V53, 6V71, 8V53 Cooling water pump

    Impeller pump Detroit Diesel 6V53, 6V71, 8V53 Cooling water pump

    €889,95 Same day shipping    Add to cart
  • 7072-01

    Impeller 51mm high 22mm deep 12.7mm shaft diameter

    Sale! Original price was: €28,95.Current price is: €23,95. Same day shipping    Add to cart
  • Impeller 09-821B / 7376-01 for Yanmar, Volvo Penta and Johnson

    Impeller 09-821B / 7376-01 for Yanmar, Volvo Penta and Johnson

    Sale! Original price was: €72,95.Current price is: €59,95. Same day shipping    Add to cart
  • Martec closed circuit cooling system Yanmar 3GM Heat exchanger converting kit

    Martec closed circuit cooling system Yanmar 3GM Heat exchanger converting kit

    Sale! Original price was: €1.219,95.Current price is: €1.009,95. 3-5 working days    Add to cart
  • Flexible cooling water hose 48 mm to 55 mm Length: 1.00m (Tubano)

    Flexible cooling water hose 48 mm to 55 mm Length: 1.00m (Tubano)

    Sale! Original price was: €149,95.Current price is: €124,95. 3-5 working days    Add to cart
  • Marine toilet solenoid valve with backflow protection 12V

    Marine toilet solenoid valve with backflow protection 12V

    Sale! Original price was: €109,95.Current price is: €89,95. 3-5 working days    Add to cart
  • Aerator valve 19 mm - Anti-Siphon Valve SFVL-01

    Aerator valve 19 mm – Anti-Siphon Valve SFVL-01

    Sale! Original price was: €19,95.Current price is: €16,95. 3-5 working days    Add to cart
  • Volvo Penta Heat Exchanger Seals Rubber 840741, 2001, 2002, 2003

    Volvo Penta Heat Exchanger Seals Rubber 840741, 2001, 2002, 2003

    Sale! Original price was: €39,95.Current price is: €29,95. Out of stock    Read more
  • Freeze cap Freeze plug 44.45mm

    Freeze cap Freeze plug 44.45mm

    Sale! Original price was: €3,99.Current price is: €3,29. Next day shipping    Add to cart
  • Impeller Neoprene Ancor

    Impeller Neoprene Ancor

    Sale! Original price was: €27,95.Current price is: €22,95. Same day shipping    Add to cart
  • Hose barb INNER THREAD 11/2 x 38 mm

    Hose barb INNER THREAD 11/2 x 38 mm

    Sale! Original price was: €9,95.Current price is: €7,95. Same day shipping    Add to cart
  • Through the skin with SIEVE 1/2

    Through the skin with SIEVE 1/2

    Sale! Original price was: €27,95.Current price is: €22,95. Same day shipping    Add to cart
  • Skin fitting brass 2

    Skin fitting brass 2

    Sale! Original price was: €46,95.Current price is: €37,95. Same day shipping    Add to cart
  • Mini ball valve female/male thread 1/2

    Mini ball valve female/male thread 1/2

    Sale! Original price was: €7,95.Current price is: €6,95. 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>