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8 Blade Flexible Impellers for marine engine water pumps and boat bilge pumps

8 Blade Flexible Impellers

8 Blade Jabsco flexible impellers with nitrile or neoprene construction for marine engine water pumps and boat bilge pumps. Silhouette type B, M with diameters ranging from 1-1/4 to 2-9/16 inch to fit a wide variety of marine pumps....

Starting at $33.70 / ea

  

Videos (2 results)
How to Replace a Water Pump
Teleflex Marine - Sierra Overview
How Tos (3 results)
Jabsco Engine Cooling Installation Advice

Jabsco Flexible Impeller Replacement Guide
Sherwood Replacement Impellers

Sherwood Impellers

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

ITT Jabsco Impeller Pullers for removing marine water and bilge pump impellers for inspection or replacement

Impeller Pullers

Use these flexible impeller removal tools to pull impellers from marine water pumps and bilge pumps. For...

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 engines. ...

Starting at $26.89 / ea
Starting at $77.99 / ea
Starting at $39.47 / kt
engine oil pressure and coolant temperature warning buzzer

Cole Hersee Marine Engine Warning Kit

This marine engine warning kit consists of a buzzer that sounds when your boat's engine oil pressure is too...

6 blade flexible water pump and bilge pump impellers by Jabsco

6 Blade Flexible Impellers

Jabsco 6 blade flexible impellers with silhouttes A,C,D,G,H. Nitrile and neoprene construction with 1-1/4 to...

Johnson Evinrude Water Pump Kits

Johnson / Evinrude Water Pump Kits

These two water pump kits service Johnson/ Evinrude marine outboard engines. Both kits are equivalent to kits...

Starting at $33.68 / kt
Starting at $22.70 / ea
Starting at $67.58 / kt
Sierra Temperature Sender

Sierra Temperature Sender

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

Teleflex Marine Engine Water Temperature Sending Units

Teleflex Marine Engine Water Temperature Sending Unit

Solid brass Teleflex water temp sending units feature NPT standard threads. A working and accurate water...

Johnson Pump Replacement Impellers

Johnson Pump Replacement Impellers

Johnson Pump neoprene replacement pump impellers, made of neoprene for its cooling qualities....

Starting at $17.90 / ea
Starting at $12.21 / ea
Starting at $17.60 / ea
Sierra Mercruiser Bravo Water Pump Kit 18-3150

Sierra Mercruiser Bravo Water Pump Kit 18-3150

Sierra Kit 18-3150 services water pumps on Mercruiser Bravo engines. This kit replaces Mercruiser original...

seawater strainers

Vetus 330 Cooling Water Strainers

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

12 Blade Flexible Impellers by Jabsco are suitable for boat bilge pumps and marine engine water pumps

12 Blade Flexible Impellers

12 Blade Jabsco flexible impellers in both nitrile and neoprene for marine engine water pumps and boat bilge...

Starting at $72.89 / kt
Starting at $116.92 / ea
Starting at $31.52 / ea
Johnson F4B-9 Impeller Pump

Johnson F4B-9 Impeller Pump

Johnson's F4B-9 Pump has 3/8 inch BSP threads and is a replacement for Volvo engine models AQ110, AQ115,...

Sierra Mercury Mariner Water Pump Kit 18-3324

Sierra Mercury/Mariner Water Pump Kit 18-3324

Sierra Kit 18-3324 provides the necessary parts to repair or service the water pump system on Mercury Mariner...

Cole Hersee Dual Alarm Light and Buzzer

Cole Hersee Dual Alarm Light and Buzzer

Combination warning light and buzzer which operate simultaneously to indicate low oil pressure and high or...

Starting at $259.54 / ea
Starting at $69.45 / kt
Starting at $22.99 / ea

Cooling System Maintenance

Impellers, thermostats and waterpumps 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.