The Change Impeller Mercruiser 7.4 is a critical maintenance task for marine pumps, ensuring proper water circulation to cool the engine. It involves replacing the worn rubber impeller inside the pump housing to prevent overheating and engine damage. Regular inspection and replacement are recommended to maintain optimal performance.
The Change Impeller Mercruiser 7.4 Marine Pump typically includes the following specifications:
Size: 6.5 inches (165 mm) diameter
Grade: OEM or equivalent marine-grade
Viscosity: Compatible with standard marine engine coolant (ethylene glycol-based)
Buoyancy: Not applicable (non-buoyant, submerged operation)
Material: Nitrile rubber (NBR) or neoprene impeller blades, stainless steel or brass hub
Rotation: Clockwise (standard for Mercruiser applications)
Operating Temp Range: -20°F to 180°F (-29°C to 82°C)
Compatibility: Fits Mercruiser 7.4L (454 CID) Bravo and Alpha sterndrive models
Ropes, paints, safety gear, and workshop tools.
Fresh/canned food, bonded stores, and PPE kits.
Air/sea freight with port-to-vessel handover.
Certified water testing and offshore delivery.
Secure USD/EUR disbursement in major ports.
Global network of certified fuel providers with real-time pricing. OEM-approved oils (Shell, Exxon, etc.).
Port reception facilities with automated documentation.
Hull cleaning, propeller polishing, and cathodic protection surveys.
Visa assistance, airport transfers, and quarantine coordination.
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