Description Water Pump Pulley used in the OM603 water pump upgrade and on the OM606. The parts below are required to complete the upgrade: : Water Pump - OM606 Water Drain Pipe - OM603/OM606 Water Pump Housing - OM606 Thermostat - OM603/OM606 - 80 Degree Thermostat Cap - OM606 Water Pump Housing Gasket - OM606
