Mercury Mercruiser Marine - VALVE KIT-RELIEF (#863208A3)
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        Part #: 863208A3
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  Water Pressure Relief Valve Kit
The purpose of this kit is to regulate engine block water pressure to a maximum of 30 psi and vent excess water overboard.
Fits all MCM engines in high performance applications where engine block water pressures are exceeding the maximum 30 psi.
Mercury Assemblies
| Relief Valve Kit, 863208A 3
          
ACCESSORIESExhaust / Cooling Systems and Extension Kits          
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| Standard Cooling System
          
MERCRUISER385 Performance Tuned          
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