Closed Cooling System Kit

  • Thermostaat Volvo Penta MD2 MD3 MD6 MD7 MD11 MD17

    Thermostat Volvo Penta MD5 Closed cooling system

    Sale! Original price was: €71,95.Current price is: €59,95. Same day shipping    Add to cart

  • Freeze cap Freeze plug 41.28mm

    Sale! Original price was: €4,95.Current price is: €3,95. Next day shipping    Add to cart

  • Martec closed circuit cooling system Volvo MD6, MD7, Heat exchanger converting kit

    Sale! Original price was: €1.159,95.Current price is: €969,95. 3-5 working days    Add to cart

  • Freezer cup 16.00mm freeze cap

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

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

    Sale! Original price was: €1.299,95.Current price is: €1.089,95. 3-5 working days    Add to cart

  • Freeze cap Freeze plug Volvo Penta 477024

    Sale! Original price was: €9,95.Current price is: €7,95. Same day shipping    Add to cart

  • Thermostat Volvo Penta MD22 series Perkins M50 M60

    Sale! Original price was: €22,95.Current price is: €18,95. Same day shipping    Add to cart
  • Warmtewisselaar 300-Ø100mm 61PK

    Heat exchanger 300 x Ø100mm 105hp 1-1/4” x 1” BSP connection

    €1.239,95 Same day shipping    Add to cart

  • Radiator cap calice solder pressure reliefcap small (57mm)

    Sale! Original price was: €14,95.Current price is: €11,95. Out of stock    Read more
  • 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: €1.019,95.Current price is: €849,95. Same day shipping    Add to cart

  • Martec rubber 4” 100mm

    Sale! Original price was: €8,95.Current price is: €7,95. Same day shipping    Add to cart

  • Thermostat GM V8 engines Volvo Penta and Mercruiser Closed cooling system

    Sale! Original price was: €33,95.Current price is: €27,95. Same day shipping    Add to cart
  • Deze Thermostaat Volvo Penta AQ170 Gesloten koelsysteem is voor verschillende motoren te gebruiken, zoals BMC, DAF enz

    Thermostat Volvo Penta AQ170 Closed cooling system

    Sale! Original price was: €34,95.Current price is: €28,95. Same day shipping    Add to cart

  • Closed cooling system Wall mounted, up to 40hp

    Sale! Original price was: €1.159,95.Current price is: €969,95. 3-5 working days    Add to cart

  • Radiator cap small 0.5bar relief cap (57mm)

    Sale! Original price was: €13,95.Current price is: €11,95. Out of stock    Read more

  • Freeze cap Freeze plug 48.00mm

    Sale! Original price was: €4,95.Current price is: €3,95. Next day shipping    Add to cart

  • O-ring STM3516 Vetus M2.05 heat exchanger

    €1,09 Same day shipping    Add to cart

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

    €659,95 Out of stock    Read more

  • Marine Water pump Mercruiser (2007-2012)

    Sale! Original price was: €289,95.Current price is: €249,95. Out of stock    Read more
  • Oliekoeler 12''x Ø55 mm. Ø32mm. wateraansluiting

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

    €479,95 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: €799,95.Current price is: €669,95. Same day shipping    Add to cart
  • Warmtewisselaar 200-Ø55mm 22PK

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

    Sale! Original price was: €489,95.Current price is: €409,95. 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.

    €709,95 Same day shipping    Add to cart
  • Oliekoeler 12''x Ø55 mm. Ø32mm. wateraansluiting

    Oil Cooler 12″ x Ø75 mm Ø42mm Water connection

    €609,95 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.