A reliable cooling system is the backbone of any well-maintained marine engine, and at the heart of that system is a high-quality impeller. The Mercury-MerCruiser Sea Water Pump Impeller Kit (47-8M0104229) is designed to keep your V-6 or V-8 MerCruiser engine running at optimal temperatures by ensuring a steady flow of cooling water.

Built to fit 2000 and newer MerCruiser MCM V-6 and V-8 engines with brass sea water pumps, this impeller is made from durable, marine-grade materials that withstand constant exposure to water, heat, and friction. Over time, impellers naturally wear down, which can lead to reduced water flow and potential overheating. A timely replacement prevents costly engine damage and keeps performance at its best.

Why This Impeller Kit Matters:

• Ensures Proper Cooling – Maintains steady water circulation to prevent overheating and engine wear.
• Marine-Grade Durability – Built to withstand the rigors of saltwater and freshwater conditions.
• Designed for Precision Fit – Direct replacement for factory-installed impellers in MerCruiser MCM V-6 and V-8 engines.
• Complete Kit for Easy Install – Includes impeller and O-ring for a straightforward swap.

Regular impeller replacement is a simple but essential part of boat maintenance. If it’s been a while since the last change, now is the time—because an engine running too hot is never a good sign.