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PCM Raw Water Impeller Serpentine Driven
PCM GM Impeller for engines with a serpentine driven water pump.
Replace your impeller every 100 hours or annually. A damaged impeller will not pump water and will cause your engine to overheat.


 
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Product Code: PCM_IMPELLER_GM_SERP_DRIVEN

Description
 

PCM Raw Water Pump Impeller for GM Engines

This impeller for your PCM Marine Engine will keep your boat from overheating by properly circulating water through the block and manifolds. We recommend replacing your engine impeller every 100 hours or annually to ensure that your boat is properly cooled.

Your boats raw water pump is designed to use the water it pumps to lubricate its impeller. Do not run the engine unless the boat is in water. If you run the engine with the boat out of the water, the water pump may be damaged and you will shorten the life of your impeller. Engine overheating can cause damage to your boats motor and can start a fire.

If you operate your boat in shallow, silty or sandy conditions we recommend that you inspect your boats impeller more frequently to ensure your boats cooling system continues to operate correctly.

PCM replacement part which fits PCM engines with a raw water pump driven by a serpentine belt such as the Excalibur 5.7 Liter 343.

It is recommended that you change your impeller annually or every 100 hours (whatever happens first) and keep a spare in your boat. Natural wear and debris in lake water tear away at your impeller, eventually to the point where the raw water pump can't keep up with the heat output of the engine. This leads to engine overheating which can lead to engine failure.


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