Cooling system

  • Coolant hose Straight 10 mm x 1.00 meter (3/8'')

    Coolant hose Straight 10 mm x 1.00 meter (3/8”)

    €19,95 3-5 working days    Add to cart
  • Coolant hose 90° Curved hose 55 mm x 300 mm (2 1/8'')

    Coolant hose 90° Curved hose 55 mm x 300 mm (2 1/8”)

    €36,95 3-5 working days    Add to cart
  • Impeller pump Volvo Penta TAMD162, TAMD163, TAMD165 (3837935, 3825493)

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

    Sale! Original price was: €1.549,95.Current price is: €1.289,95. Same day shipping    Add to cart
  • Impeller pump Northern Lights M843, M844 series Cooling water pump

    Impeller pump Northern Lights M843, M844 series Cooling water pump

    €459,95 Same day shipping    Add to cart
  • Impellerpomp Cummins QSM11 koelwaterpomp

    Impeller pump Cummins QSM11 Cooling water pump

    €1.479,95 Same day shipping    Add to cart
  • JMP Marine flexibel Impeller Volvo: 383045

    Impeller Volvo 3830459

    Sale! Original price was: €119,95.Current price is: €99,95. Same day shipping    Add to cart
  • Impeller John Deere: 23502086

    Impeller John Deere: 23502086

    Sale! Original price was: €149,95.Current price is: €124,95. Same day shipping    Add to cart
  • Mounting plate Peugeot Indenor Impeller pump Round F5B-9-10-35231-1

    Mounting plate Peugeot Indenor Impeller pump Round F5B-9-10-35231-1

    Sale! Original price was: €104,95.Current price is: €87,95. Out of stock    Read more
  • Aerator valve 19 mm - Anti-Siphon Valve SFVL-01

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

    Sale! Original price was: €18,95.Current price is: €15,95. Same day shipping    Add to cart
  • Pressurized water system with pressure tank 24V 18.9 L/min - 8L set

    Pressurized water system with pressure tank 24V 18.9 L/min – 8L set

    Sale! Original price was: €339,95.Current price is: €279,95. 3-5 working days    Add to cart
  • Volvo Penta o-ring - 969415

    Volvo Penta o-ring – 969415

    Sale! Original price was: €7,95.Current price is: €5,95. Same day shipping    Add to cart
  • Rubber coupling for heat exchanger Volvo Penta MD2040, 3580522

    Rubber coupling for heat exchanger Volvo Penta MD2040, 3580522

    Sale! Original price was: €72,95.Current price is: €59,95. Same day shipping    Add to cart
  • 3745

    Service Kit for ST147

    Sale! Original price was: €84,95.Current price is: €69,95. Same day shipping    Add to cart
  • Seal 15x28x7 Impeller pump Viton

    Seal 15x28x7 Impeller pump Viton

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping    Add to cart
  • Stainless steel exhaust spring bellows 1.5” (48.30 mm) with welding ends

    Stainless steel exhaust spring bellows 1.5” (48.30 mm) with welding ends

    Sale! Original price was: €109,95.Current price is: €92,95. Same day shipping    Add to cart
  • Stainless steel exhaust spring bellows 2.5" (76.10 mm) with welding ends

    Stainless steel exhaust spring bellows 2.5″ (76.10 mm) with welding ends

    Sale! Original price was: €119,95.Current price is: €98,95. Same day shipping    Add to cart
  • Volvo Penta expansion plug for cylinder head - 477024

    Freezer cup 28.57mm freezer cap

    Sale! Original price was: €4,95.Current price is: €3,95. Next day shipping    Add to cart
  • Volvo Penta expansion plug for cylinder head - 477024

    Freeze cap Freeze plug 48.00mm

    Sale! Original price was: €4,95.Current price is: €3,95. Next day shipping    Add to cart
  • Merford Merfocell GW sound insulation board grey 1200x1000x25mm

    Merford Merfocell GW sound insulation board grey 1200x1000x25mm

    Sale! Original price was: €219,95.Current price is: €174,95. Next day shipping    Add to cart
  • Volvo Penta 130S, 150S shared collar anode for saildrive Magnesium (without bolts) 22651246

    Volvo Penta 130S, 150S shared collar anode for saildrive Magnesium (without bolts) 22651246

    Sale! Original price was: €49,95.Current price is: €42,95. Same day shipping    Add to cart
  • Mercury skeg anode for trim tab for Formula 60HP Aluminium

    Mercury skeg anode for trim tab for Formula 60HP Aluminium

    €12,95 Same day shipping    Add to cart
  • Mercury outboard motor anode kit for F30 F40 F60 Magnesium

    Mercury outboard motor anode kit for F30 F40 F60 Magnesium

    €48,95 Same day shipping    Add to cart
  • Brass Cover cap 3/4" female

    Brass Cover cap 3/4″ female

    Sale! Original price was: €5,95.Current price is: €4,95. Same day shipping    Add to cart
  • Brass Cover cap 1/2" female

    Brass Cover cap 1/2″ female

    Sale! Original price was: €3,69.Current price is: €3,09. 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>