Closed Cooling System

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

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

    €599,95 Same day shipping    Add to cart
  • Heat exchanger 200-Ø100mm 34hp; High quality, resistant to salt and extreme conditions, for long and trouble-free use.

    Heat exchanger 200 x Ø100mm 70hp 1” x 1” BSP connection

    Sale! Original price was: €939,95.Current price is: €779,95. Same day shipping    Add to cart
  • Warmtewisselaar 200-Ø55mm 22PK

    Heat exchanger 200 x Ø55mm 22hp 1/2”x1” BSP connection

    €449,95 Same day shipping    Add to cart
  • Martec rubber 4'' 100mm

    Martec rubber 4” 100mm

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping    Add to cart
  • Thermostat GM V8 engines Volvo Penta and Mercruiser Closed cooling system

    Thermostat GM V8 engines Volvo Penta and Mercruiser Closed cooling system

    Sale! Original price was: €41,95.Current price is: €33,95. Same day shipping    Add to cart
  • Oliekoeler 12''x Ø55 mm. Ø32mm. wateraansluiting

    Oil Cooler 12″ x Ø75 mm Ø42mm Water connection

    Sale! Original price was: €569,95.Current price is: €469,95. Same day shipping    Add to cart
  • Heat Exchanger Gasket Vetus M2.05 STM1563

    Heat Exchanger Gasket Vetus M2.05 STM1563

    Sale! Original price was: €14,95.Current price is: €11,95. Out of stock    Read more
  • Volvo Penta expansion plug for cylinder head - 477024

    Freezer cup 22.22mm freezer cap

    Sale! Original price was: €5,95.Current price is: €4,95. Next day shipping    Add to cart
  • Volvo Penta expansion plug for cylinder head - 477024

    Freeze cap Freeze plug 50,00mm

    Sale! Original price was: €5,95.Current price is: €4,95. Next day shipping    Add to cart
  • Thermostat Yanmar open water Closed cooling system 105582-49200 (42gr)

    Thermostat Yanmar open water Closed cooling system 105582-49200 (42gr)

    Sale! Original price was: €84,95.Current price is: €69,95. Same day shipping    Add to cart
  • O-ring STM3516 Vetus M2.05 heat exchanger

    O-ring STM3516 Vetus M2.05 heat exchanger

    Sale! Original price was: €1,59.Current price is: €1,29. Same day shipping    Add to cart
  • Marine Water pump Mercruiser (2007-2012)

    Marine Water pump Mercruiser (2007-2012)

    Sale! Original price was: €289,95.Current price is: €249,95. Out of stock    Read more
  • Martec closed cooling system V6 and V8 engines Smallblock up to 450hp

    Martec closed cooling system V6 and V8 engines Smallblock up to 450hp

    Sale! Original price was: €3.299,95.Current price is: €2.749,95. 3-5 working days    Add to cart
  • Oliekoeler 12''x Ø55 mm. Ø32mm. wateraansluiting

    Oil Cooler 229mm x Ø55 mm. Ø32mm. Water connection

    €439,95 Same day shipping    Add to cart
  • Heat exchanger 200-Ø100mm 34hp; High quality, resistant to salt and extreme conditions, for long and trouble-free use.

    Heat exchanger 200 x Ø75mm 40hp 1” x 1” BSP connection

    Sale! Original price was: €739,95.Current price is: €619,95. Same day shipping    Add to cart
  • Double Oil Cooler 175x175mm x Ø55mm Ø32mm hose connection.

    Double Oil Cooler 7” x 7” x Ø55mm Ø32mm Hose connection.

    €659,95 Same day shipping    Add to cart
  • Closed cooling system Wall mounted, up to 25hp

    Closed cooling system Wall mounted, up to 25hp

    Sale! Original price was: €1.309,95.Current price is: €1.089,95. 3-5 working days    Add to cart
  • Martec closed circuit cooling system Yanmar 1GM Heat exchanger converting kit

    Martec closed circuit cooling system Yanmar 1GM Heat exchanger converting kit

    Sale! Original price was: €1.439,95.Current price is: €1.199,95. 3-5 working days    Add to cart
  • KSAV02

    Gasket set heat exchanger for 3.100HE up to 5.250HE

    Sale! Original price was: €33,95.Current price is: €28,95. 3-5 working days    Add to cart
  • Cooling element 55-540 (180D)

    Cooling element 55-540 (180D)

    €419,95 Same day shipping    Add to cart
  • Martec Circulation pump Jonsson 10-24501-03

    Martec Circulation pump Jonsson 10-24501-03

    Sale! Original price was: €309,95.Current price is: €259,95. Same day shipping    Add to cart
  • Marine Water pump Mercruiser, OMC, Chevrolet Marine Engine (1963-2007)

    Marine Water pump Mercruiser, OMC, Chevrolet Marine Engine (1963-2007)

    Sale! Original price was: €219,95.Current price is: €174,95. Same day shipping    Add to cart
  • Thermostaat Volvo Penta AQ95-130 Gesloten koelsysteem

    Thermostat Volvo Penta AQ95-130 Closed circuit cooling system

    Sale! Original price was: €86,95.Current price is: €72,95. Same day shipping    Add to cart
  • Oliekoeler 12''x Ø55 mm. Ø32mm. wateraansluiting

    Oil Cooler 10” x Ø75 mm Ø46mm Water connection

    €569,95 Same day shipping    Add to cart

Closed-circuit cooling system (engine-specific)

The heat exchangers are available for a wide range of engines. You will receive a set specifically for the engine including fittings, such as hoses and pipes, for direct fastening to the engine.

Standard conversion kit for closed cooling system

You will also find standard conversion kits for going from direct cooling to a closed cooling system.

Heat exchanger for wall mounting

We also supply standard conversion kits for various engine capacities. These heat exchangers are mounted against a wall.

MARTEC heat exchanger

All MARTEC Fresh Water Cooling systems come complete with heat exchanger, expansion tank, electric Johnson circulation pump and fitting materials.