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Sherwood Marine Engine Cooling Pump R991
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Sherwood R991 Pedestal Mounted Engine Cooling Pump (1-1/4" NPT Ports)

Part No. SWR991

€987.25 You pay €987.25 Incl VAT You pay €822.71 Excl VAT

RRP €1,096.94 €914.12

Save €109.69 (10.0%) Save €91.41 (10.0%)


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Brand Sherwood
Model R991
Inlet / Outlet 1-1/4" NPT Female
Drive Type Pulley Driven
Impeller Fitted SW09959K
Repair Kit SW18655 Major Repair Kit
Applications Yamaha 4.3 V6 Engines & Chevrolet 305/350 V8 Engines
Mounting Pedestal Mount

The raw water engine cooling pump is the heart of the marine engine, supplying a continuous flow of raw water to maintain temperatures consistent with the demanding engine performance. Over the years, Sherwood raw water pumps have developed a reputation of excellence in quality; and today are chosen for their performance and dependability by the most prestigious marine engine manufacturers.

Sherwood pumps are one of the largest suppliers of flexible rubber impeller cooling pumps for marine engines in the USA. Sherwood pumps can be found fitted on some of the most well known engine brands in both pleasure and commercial boats.

This is a genuine Sherwood R991 pedestal mounted boat engine cooling pump, using raw water intake (river water or sea water) to cool the engine. The Sherwood R991 features a pulley driven pump shaft and is supplied complete with a 12 vane through key drive flexible neoprene impeller.

To ensure that your boat engine cooling pump performs as required, regular preventative maintenance and inspection should be carried out. The Sherwood engine cooling pump impeller should be replaced every 3 - 12 months depending on application.

The number one reason for premature engine wear is overheating. To maintain engine performance, insist upon genuine Sherwood impeller pumps, impellers and service kits.

Typical applications for the Sherwood R991 pump include: Yamaha 4.3 V6 engines and Chevrolet 305/350 V8 engines.

Please allow approximately 10-12 weeks for delivery.

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