As the leading ship supplier in Ross Dependency, Tmc Macerator Pump Manual, we specialize in delivering high-quality Change Impeller Mercruiser 7.4 with unmatched speed and reliability. Trusted by shipowners and masters worldwide, our team ensures your vessel gets everything it needs — on time, every time.
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
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