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Ilmor Water Pump Impeller for closed cooled systems.
This kit fits all Closed Cooled ILMOR marine V8 engines found in 2011 to current MasterCraft boats. Impeller includes a new O-Ring. This impeller is designed to work with ILMOR V8 engines including the 5.7OPS, 6.0OPS, 6.2OPS and 7.4 Liter versions.
Ilmor Raw Water Pump Impeller (Closed Cooled and 7.4L) This impeller is compatible with:
MV8 5.7L OPS
MV8 6.0L OPS
MV8 6.2L OPS
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.