UANOFCN 8M0113799 Water Pump Impeller Repair Kit for Mercury Marine 75-115 HP Outboard

Refresh your Mercury Marine 75-115 HP outboard cooling with a complete repair kit

The UANOFCN Water Pump Impeller Repair Kit is designed for Mercury Marine 75-115 HP outboard models, offering a comprehensive rebuild set that can help restore efficient cooling and smooth operation. This kit focuses on durable materials and precise assembly to support reliable performance during long days on the water. While results can vary with engine condition and usage, a fresh pump assembly has the potential to improve flow and reduce overheating risks when the boat is pushed hard or run for extended periods.

Compatibility and replacements

This kit is intended to replace multiple Mercury Marine and Sierra parts, making it a versatile option for appropriate models. Replacements include Mercury OEM numbers such as 46-8M0113799, 46-43024A7, and 43024A4/43024A5/43024A6/43026T9, along with Sierra 18-3688. Before purchase, verify your outboard model, serial number, and year to confirm fit. If you’re uncertain, contact us for guidance and we’ll help you confirm compatibility.

What’s inside

• Water pump impeller
• Wear plate (stainless)
• Drive key
• Pump cover
• Housing
• Seals (two)
• Gaskets and four screws

Materials that matter

• Stainless wear plate designed for durability in demanding cooling cycles
• Nylon PA66 tube for robust, abrasion-resistant flow paths
• Non-asbestos gasket for a reliable seal between components
• Neoprene impeller offering flexible, long-lasting performance

Real-world use and benefits

In everyday boating, a refreshed water pump can contribute to more consistent coolant flow, which may support steadier idle quality and predictable RPMs on the water. The combination of durable wear parts, a robust impeller, and a sealed housing aims to reduce the risk of leaks and uneven cooling under typical marine conditions. Consider this kit as a practical upgrade option during maintenance or preseason checks, rather than a guaranteed outcome.

Installation notes

• Please check your outboard model, serial number, and year before purchase
• If you’re unsure about compatibility, feel free to reach out—we’re glad to help you verify fit

Choosing the UANOFCN Water Pump Impeller Repair Kit means selecting a complete rebuild set that emphasizes correct fit, quality materials, and straightforward assembly for Mercury Marine engines in the 75-115 HP range.