Closed Cooling System Kit

  • Freeze cap Freeze plug 50,00mm

    Sale! Original price was: €5,95.Current price is: €4,95.     Add to cart

  • Freeze cap Freeze plug 49.21mm

    Sale! Original price was: €5,95.Current price is: €4,95.     Add to cart

  • Freeze cap Freeze plug 48.00mm

    Sale! Original price was: €5,95.Current price is: €4,95.     Add to cart

  • Freeze cap Freeze plug 41.28mm

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

  • Freeze cap Freeze plug 38,25mm

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

  • Freeze cap Freeze plug 15.88mm

    Sale! Original price was: €5,95.Current price is: €4,95.     Add to cart

  • Freeze cap Freeze plug 21.43mm

    Sale! Original price was: €3,89.Current price is: €3,29.     Add to cart

  • Freeze cap Freeze plug 25.00mm

    Sale! Original price was: €3,89.Current price is: €3,19.     Add to cart

  • Freeze cap Freeze plug 31.75mm

    Sale! Original price was: €4,95.Current price is: €3,79.     Add to cart

  • Freeze cap Freeze plug 38.10mm

    Sale! Original price was: €4,95.Current price is: €3,79.     Add to cart

  • Freeze cap Freeze plug 42.00mm

    Sale! Original price was: €3,95.Current price is: €3,59.     Add to cart

  • Freeze cap Freeze plug 44.45mm

    Sale! Original price was: €3,95.Current price is: €3,59.     Add to cart

  • Thermostat Yanmar Closed cooling system 121750-49800 (71gr)

    Sale! Original price was: €114,95.Current price is: €97,95.     Add to cart

  • O-ring STM3516 Vetus M2.05 heat exchanger

    €1,19     Add to cart

  • Brass elbow Ø 1.25″ connection x 40.00m

    Sale! Original price was: €69,95.Current price is: €57,95.     Add to cart
  • Placeholder

    Aluminum elbow Ø 1″ connection

    Sale! Original price was: €49,95.Current price is: €39,95.     Add to cart

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

    €659,95     Add to cart

  • Cooling element 75-875 (OM600)

    €709,95     Add to cart

  • Cooling element 75-810 (Merc.5-cyl.)

    €689,95     Add to cart

  • Cooling element 75-780

    Sale! Original price was: €609,95.Current price is: €509,95.     Add to cart

  • Cooling element 75-700 (OM314 + OM616)

    €659,95     Add to cart

  • Cooling element 75-675

    €619,95     Add to cart

  • Cooling element 75-630

    €609,95     Add to cart

  • Cooling element 55-630 (190D)

    €449,95 Out of stock    Read more

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.