JD VIP Buyers Club
JD on Facebook
JamestownTV
Request A Free Catalog

> Engine Room > Remove category: Cooling Systems

Per Page: 
Items: 1 - 15 of 64 | Pages: 1  2  3  4  5  Next 
Sort By:
  • Sherwood pump impellers

    Sherwood Replacement Impellers

    Sherwood impellers for marine applications such as water pumps and bilge pumps. Use Neoprene...

    In Stock 

    Price: $25.99 to $169.99
  • Jabsco Replacement Pump Impellers

    Jabsco Replacement Pump Impellers

    Jabsco replacement neoprene and nitrile impellers for engine cooling, water, bilge, and transfer pum...

    In Stock 

    Price: $22.36 to $1350.57
  • Yamaha Outboard Water Pump

    Yamaha Outboard Water Pump Repair Kits

    Sierra water pump repair kits repair and replace OEM water pump components on Yamaha outboard...

    In Stock 

    Price: $27.76 to $53.64
  • seawater strainers

    Vetus 330 Cooling Water Strainers

    Vetus Type 330 sea strainers filter seawater before it is fed into the cooling system of marine engi...

    In Stock 

    Price: $21.85 to $93.38
  • Sherwood Water Pump Service Parts and Repair Kits

    Sherwood Water Pump Service Parts and Repair Kits

    Sherwood Cooling Water Pump service parts and repair kits ensure that your pump performs up to OEM s...

    In Stock 

    Price: $6.25 to $293.67
  • Mercury Impeller Kits

    Mercury Marine Water Pump Impeller Repair Kits

    Mercury Marine Water Pump Impeller Repair Kits are designed to be complete replacement kits for the...

    In Stock 

    Price: $27.28 to $40.47
  • Sherwood Pump Major Repair Kit 12665

    Sherwood Pump Major Repair Kit 12665

    Sherwood's 12665 Major Repair Kit includes: an impeller, O-ring, gasket, seal, snap rings, key and...

    In Stock 

    Price: $141.09
  • Vetus Anti Siphon Device with Valve

    Vetus Anti Syphon Device with Valve

    Vetus airvent ASD is an anti-siphon loop with valve necessary for engine coolant plumbing. Uses a...

    In Stock 

    Price: $59.58
  • Cooling Water Strainer

    Vetus 140 Cooling Water Strainers

    Vetus Type 140 sea strainers filter seawater before it is fed into pumps and the cooling system of...

    Price: $70.97
  • Mercury Marine Thermostat Kits

    Mercury Marine Engine Thermostat Kits

    Mercury Marine Engine Thermostat Kits contain all necessary parts to change the thermostat in your...

    In Stock 

    Price: $2.61 to $34.40
  • Vetus 150 Cooling Water Strainers

    Vetus 150 Cooling Water Strainers

    Vetus Type 150 sea strainers filter seawater before it is fed into pumps and the cooling system of...

    In Stock 

    Price: $37.17
  • Jabsco 7420 Series Flexible Impeller Pump

    Jabsco 7420 Series Flexible Impeller Pump

    Jabsco 7420-1001 1 1/4 inch flexible impeller pump with neoprene impeller, full cam, mechanical...

    In Stock 

    Price: $510.64
  • Mercury Upper Repair Kits

    Mercury Marine Upper Water Pump Repair Kits

    Mercury Marine Upper Water Pump Repair Kits contain everything needed to repair upper water pumps...

    In Stock 

    Price: $43.57 to $124.15
  • Sierra Temperature Sender

    Sierra Temperature Sender

    The Sierra Temperature Sender comes with a 10-32 terminal type stud with several pipe thread sizes...

    In Stock 

    Price: $12.57 to $15.97
  • Sherwood 12399 Impeller Minor Repair Kit

    Sherwood 12399 Impeller Minor Repair Kit

    Sherwood 12399 includes all parts necessary for minor impeller repair....

    In Stock 

    Price: $73.23
Items: 1 - 15 of 64 | Pages: 1  2  3  4  5  Next 
 

Cooling System Maintenance

Impellers, thermostats and water pumps are essential components to regulating an efficient working temperature in your marine engine. Engines passing seawater through the system will inevitably require service. Simple routine maintenance of cooling systems will assure your vessel is ready for its next adventure. Flush raw water systems on the trailer or at the end of the season. Failure of these components will overheat an engine, possibly leading to costly damage of core components.

Water pumps with rubber impellers burn out if run dry. This could be caused by simply forgetting to open a seacock. Another common cause at sea is weeds or a plastic bag stuck in the seawater intake through-hull. Having spares on hand is highly recommended. As impellers age they lose there flexibility and should be replaced.

The thermostat is a simple valve which opens once the engine has warmed, thus allowing the coolant to circulate. On most engines the thermostat will pop at 160 degrees F and be fully open at 180 degrees F. To troubleshoot, remove a suspect thermostat and place it in a pot of boiling water with a thermometer. A malfunctioning thermostat must be replaced.

JD on Facebook Live Tech Support Jamestown Forum Free Catalog