Cooling system

  • Coolant hose 90° Curved hose 22 mm x 150 mm (7/8'')

    Coolant hose 90° Curved hose 22 mm x 150 mm (7/8”)

    €15,95 Same day shipping    Add to cart
  • Impeller pump Volvo Penta D6 series Cooling water pump

    Impeller pump Volvo Penta D6 series Cooling water pump

    Sale! Original price was: €829,95.Current price is: €689,95. Same day shipping    Add to cart
  • Impeller pump Vetus VH4.65 VH4.80 Cooling water pump

    Impeller pump Vetus VH4.65 VH4.80 Cooling water pump

    €279,95 Out of stock    Read more
  • Impeller pump Northern Lights M843, M844 series Cooling water pump

    Impeller pump Northern Lights M843, M844 series Cooling water pump

    Sale! Original price was: €479,95.Current price is: €399,95. Same day shipping    Add to cart
  • Impeller pump Northern Lights M673 series Cooling water pump

    Impeller pump Northern Lights M673 series Cooling water pump

    Sale! Original price was: €389,95.Current price is: €319,95. Same day shipping    Add to cart
  • Impellerpomp Detroit Diesel 6V71 8V71 12V71 Deze koelwaterpomp voor Detroit diesel motoren is een doorontwikkeling van het orgineel

    Impeller pump Detroit Diesel 6V71, 8V71, 12V71 Cooling water pump

    Sale! Original price was: €929,95.Current price is: €779,95. Same day shipping    Add to cart
  • Impeller John Deere: 23502086

    Impeller John Deere: 23502086

    Sale! Original price was: €179,95.Current price is: €149,95. Same day shipping    Add to cart
  • Flexible cooling water hose 20-25mm 1.00m (Tubano)

    Flexible cooling water hose 20-25mm 1.00m (Tubano)

    Sale! Original price was: €109,95.Current price is: €93,95. 3-5 working days    Add to cart
  • Thermostat Ford 2700 715F-8575-AAA

    Thermostat Ford 2700 715F-8575-AAA

    Sale! Original price was: €19,95.Current price is: €16,95. Same day shipping    Add to cart
  • Shower pump box 24V 2840 L/h - Discharge pump system for boat or camper

    Shower pump box 24V 2840 L/h – Discharge pump system for boat or camper

    Sale! Original price was: €92,95.Current price is: €77,95. Same day shipping    Add to cart
  • Electric conversion kit toilet pump 12V 18.9 L/min - with macerator pump and flushing function

    Electric conversion kit toilet pump 12V 18.9 L/min – with macerator pump and flushing function

    Sale! Original price was: €259,95.Current price is: €219,95. 3-5 working days    Add to cart
  • LED searchlight with remote control 30W - 360° White 10-30V

    LED searchlight with remote control 30W – 360° White 10-30V

    Sale! Original price was: €359,95.Current price is: €299,95. Same day shipping    Add to cart
  • 950-7300

    Martec Zinc Anode 1/4″ – 15.00 mm

    Sale! Original price was: €11,95.Current price is: €9,95. Same day shipping    Add to cart
  • KSAV02

    Gasket set heat exchanger for 3.100HE up to 5.250HE

    Sale! Original price was: €31,95.Current price is: €25,95. 3-5 working days    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 27.00mm freeze cap

    Sale! Original price was: €4,95.Current price is: €3,95. Next day shipping    Add to cart
  • Freeze cap Freeze plug 42.00mm

    Freeze cap Freeze plug 42.00mm

    Sale! Original price was: €3,99.Current price is: €3,29. 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: €154,95.Current price is: €129,95. 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
  • 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
  • CR Brass Aerator 19x16

    CR Brass Aerator 19×16

    Sale! Original price was: €18,95.Current price is: €15,95. 3-5 working days    Add to cart
  • Impeller pump Johnson F4B-9-10-35725-01 ST129/SC

    Impeller pump Johnson F4B-9-10-35725-01 ST129/SC

    Sale! Original price was: €339,95.Current price is: €279,95. Same day shipping    Add to cart
  • Water pump cover

    Water pump cover

    Sale! Original price was: €9,95.Current price is: €7,95. Same day shipping    Add to cart
  • Volvo and Yanmar Impeller NITRILE (oil resistant)

    Volvo and Yanmar Impeller NITRILE (oil resistant)

    €36,95 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>