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Water Pump Impeller Rebuild Kit for Mercruiser Alpha One Gen 2
Water Pump Impeller Rebuild Kit for Mercruiser Alpha One Gen 2
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Product Overview
Keep your marine engine running cool and prevent catastrophic overheating with this Complete Water Pump Impeller Rebuild Kit. Engineered specifically for the Mercruiser Alpha One Gen 2 sterndrive, this professional-grade kit provides everything needed to restore your cooling system's pressure and flow. Featuring a high-performance impeller and premium sealing components, it ensures consistent water delivery to protect your engine during high-speed operation.
Product Compatibility
Designed for Mercury Marine outboards and Mercruiser sterndrives using the Alpha One Gen 2 system.
| Category | Reference / Part Numbers |
| Mercury / Quicksilver | 47-43026Q06, 8M0100526 |
| Sierra Marine | 18-3265 |
| Mallory Marine | 9-48713 |
| Compatibility Note | Fits Alpha One Generation 2 (Gen II) sterndrives only. Please verify your drive unit serial number before ordering. |
Specifications
| Component | Material & Feature |
| Impeller Material | High-Strength Neoprene Rubber (Chemical & Salt Resistant) |
| Face Plate | Polished Stainless Steel for Reduced Friction |
| Gaskets/Seals | Marine-Grade Nitrile for Superior Sealing |
| Flow Rate | Optimized for High-Volume Cooling Output |
Key Features
- Maximum Cooling Flow: The neoprene impeller is engineered for high durability and flexibility, providing higher flow rates and consistent cooling pressure to safeguard your engine under heavy loads.
- Corrosion-Resistant Hardware: Includes a polished stainless steel wear plate and premium hardware that resist the harsh effects of both salt and freshwater environments.
- Complete Professional Kit: Unlike basic impeller-only packs, this kit includes the face plate, gaskets, grommets, seals, washers, O-rings, and the critical impeller key for a total system overhaul.
- Strict Quality Standards: Every component is manufactured to meet or exceed OEM specifications, ensuring a perfect fit and preventing premature water pump failure.
- Extended Engine Life: Regularly replacing your water pump kit with this high-performance set prevents "dry-run" damage and maintains the longevity of your cooling system.
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Fitment FAQ
Will this part fit my specific model and year?
This cylinder piston kit is intended for Designed for Mercury Marine outboards and Mercruiser sterndrives using the Alpha One Gen 2 system.; Category; Reference / Part Numbers; Mercury / Quicksilver; 47-43026Q06, 8M0100526; Sierra Marine; 18-3265. It is best matched to original part number(s) 47-43026Q06, 18-3265. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. Match your original part number to 47-43026Q06, 18-3265 before purchase. For this cylinder piston kit, also compare the bore diameter, piston-pin size, gasket pattern, stud spacing, engine code, stroke type, and cylinder height. This is especially important for Mercury models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this cylinder piston kit for machines outside the listed compatibility, or for units with different bore sizes, piston-pin diameters, stroke lengths, stud spacing, or gasket patterns. If your original part number does not cross-reference with 47-43026Q06, 18-3265, treat the fitment as unconfirmed. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the bore diameter, piston-pin size, gasket pattern, stud spacing, engine code, stroke type, and cylinder height. Confirm OEM/cross-reference number(s): 47-43026Q06, 18-3265. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.