Cooling system

  • Placeholder

    JMP Minor kit JSM002101 for pump MD65LF2

    729,95 Same day shipping
    Add to cart
  • JPM pumps

    JMP Service kit JSK0133 for pump S7633

    579,95 Out of stock
    Read more
  • JPM pumps

    JMP Service kit JSK0050 for pump M25IP

    339,95 Same day shipping
    Add to cart
  • JMP Impeller Pump Foot Mount Pulley 268/min VK2000 1½"

    JMP Impeller Pump Foot Mount Pulley 268/min VK2000 1½”

    989,95 Same day shipping
    Add to cart
  • Impeller Pump Replaces Sherwood G909 3/8" BSP Connection

    Impeller Pump Replaces Sherwood G909 3/8″ BSP Connection

    Sale! Original price was: €429,95.Current price is: €359,95. Same day shipping
    Add to cart
  • Impeller Pump Cooling Water Pump replaces Sherwood G906 Kohler 4-6 Cylinder Engines

    Impeller Pump Cooling Water Pump replaces Sherwood G906 Kohler 4-6 Cylinder Engines

    Sale! Original price was: €409,95.Current price is: €339,95. Same day shipping
    Add to cart
  • Impeller Pump Cooling Water Pump Kohler G8005, 5EKD, 4EFKD, 7.5EKD, 6EFKD, 10EKD, 8EFKD

    Impeller Pump Cooling Water Pump Kohler G8005, 5EKD, 4EFKD, 7.5EKD, 6EFKD, 10EKD, 8EFKD

    Sale! Original price was: €279,95.Current price is: €229,95. Same day shipping
    Add to cart
  • Impeller Pump Cooling Water Pump G8001 Kohler 5E, 4EF, 7.3E, 6EF, 5ECD, 4EFCD, 7.3ECD, and 6EFCD

    Impeller Pump Cooling Water Pump G8001 Kohler 5E, 4EF, 7.3E, 6EF, 5ECD, 4EFCD, 7.3ECD, and 6EFCD

    Sale! Original price was: €259,95.Current price is: €219,95. Same day shipping
    Add to cart
  • JMP Impeller Pump 3919899 Cummins 6BT

    JMP Impeller Pump 3919899 Cummins 6BT

    Sale! Original price was: €919,95.Current price is: €759,95. Same day shipping
    Add to cart
  • Placeholder

    JMP Impeller pump MN50

    1.299,95 Out of stock
    Read more
  • Impeller Pump Cooling Water Pump Mitsubishi Engines S6R and S6R2 Keel Cooling

    Impeller Pump Cooling Water Pump Mitsubishi Engines S6R and S6R2 Keel Cooling

    Sale! Original price was: €1.689,95.Current price is: €1.409,95. Same day shipping
    Add to cart
  • Placeholder

    JMP Impeller pump M50IP 2″ conn

    949,95 Same day shipping
    Add to cart
  • Placeholder

    JMP Impeller pump M40IP 1½” conn

    Sale! Original price was: €799,95.Current price is: €669,95. Same day shipping
    Add to cart
  • Placeholder

    JMP Impeller pump JD50LF2 with flange 2″

    1.219,95 Same day shipping
    Add to cart
  • Impeller Pump Cooling Water Pump P1014, P1015, P101 Crusader, Pleasurecraft 220, 270, 300, 350, 354

    Impeller Pump Cooling Water Pump P1014, P1015, P101 Crusader, Pleasurecraft 220, 270, 300, 350, 354

    689,95 Out of stock
    Read more
  • Impeller Pump Cooling Water Pump Sherwood P1505, P-1505 Cummins QSD4.2

    Impeller Pump Cooling Water Pump Sherwood P1505, P-1505 Cummins QSD4.2

    Sale! Original price was: €709,95.Current price is: €589,95. Same day shipping
    Add to cart
  • Placeholder

    JMP Impeller pump D5010

    Same day shipping
    Read more
  • Placeholder

    JMP Impeller pump D2510

    Same day shipping
    Read more
  • Impeller Pump Cooling Water Pump Caterpillar C32

    Impeller Pump Cooling Water Pump Caterpillar C32

    3.259,95 Same day shipping
    Add to cart
  • Impeller Pump Cooling Water Pump Caterpillar C12, 3176, 3196

    Impeller Pump Cooling Water Pump Caterpillar C12, 3176, 3196

    Sale! Original price was: €2.099,95.Current price is: €1.749,95. Same day shipping
    Add to cart
  • Impeller Pump Cooling Water Pump Cummins K38, K50, KTA38, KTA50

    Impeller Pump Cooling Water Pump Cummins K38, K50, KTA38, KTA50

    9.069,95 Out of stock
    Read more
  • Placeholder

    JMP Impeller pump C3800G 2″ fl. w/gear

    5.129,95 Same day shipping
    Add to cart
  • Impeller Pump Cooling Water Pump C1900G with Gear Gilkes 44955-052 Cummins K19, KT19M, KTA19M, KTA19M3/M6, KTA19-D(M), KTA19-D(M1)

    Impeller Pump Cooling Water Pump C1900G with Gear Gilkes 44955-052 Cummins K19, KT19M, KTA19M, KTA19M3/M6, KTA19-D(M), KTA19-D(M1)

    5.129,95 Same day shipping
    Add to cart
  • Impeller Pump Cooling Water Pump 50LPL 2" BSP Connection

    Impeller Pump Cooling Water Pump 50LPL 2″ BSP Connection

    Sale! Original price was: €919,95.Current price is: €759,95. 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>