Mercury – Quicksilver 817275A5 Water Pump Repair Kit | Mercury 3.0L DFI Outboards | 817275A5

Overview

Your outboard’s water pump is the heart of its cooling system, and keeping it in top shape protects everything else. The Quicksilver 817275A5 Water Pump Repair Kit is built for Mercury 3.0L DFI outboards, giving you all the OEM parts needed to restore full cooling performance.

This complete kit includes the impeller, pump housing, faceplate, gaskets, and O-rings — everything you need to replace worn components and keep your engine running cool, even during long days at wide-open throttle. Designed to Mercury’s precise factory standards, it’s one of the most complete and reliable repair kits available.

Key Features

• Purpose: Repairs and restores your water pump system to prevent overheating and ensure steady cooling flow.
• Fitment: Designed for Mercury 3.0L DFI outboards.
• Kit Contents: Includes impeller, pump housing, faceplate, gaskets, and O-rings.
• Build Quality: Made to Mercury Marine OEM specs for perfect fit and long-lasting performance.
• Ease of Use: Installs easily with standard tools and follows step-by-step directions from your service manual.

Engine & Boat Compatibility

• Mercury 3.0L DFI outboards
• Commonly found on bay boats, center consoles, and offshore fishing setups

Performance & Practical Benefits

The 817275A5 kit brings your cooling system back to life by restoring water pressure and flow efficiency. A fresh impeller and properly sealed housing keep the engine at the right temperature, reducing stress on internal components.

With OEM-quality materials, this kit resists corrosion, abrasion, and heat — giving you consistent cooling performance season after season. It’s an easy, preventative repair that helps avoid expensive engine damage down the line.

Why Buy OEM

Mercury’s OEM water pump parts are made with exact tolerances to match your outboard’s design. Aftermarket kits often use cheaper rubbers or plastics that don’t hold up to marine conditions, leading to leaks or early failure.

A genuine Quicksilver kit guarantees you get the same fit, finish, and flow as the original factory setup — engineered by the people who built your engine in the first place.

FAQ

Q1: What engines fit the Quicksilver 817275A5 kit?
A: It’s built specifically for Mercury 3.0L DFI outboards.

Q2: What’s included in the kit?
A: Impeller, housings, faceplate, gaskets, and O-rings — everything needed for a full pump rebuild.

Q3: How often should I replace the water pump?
A: Inspect it every season and replace the full assembly every 2–3 years, or sooner if water flow decreases.

Q4: Can I install it myself?
A: Yes. With basic tools and your Mercury service manual, most boat owners can handle the replacement.

Q5: Why OEM instead of aftermarket?
A: OEM parts guarantee the correct fit, material quality, and performance, keeping your cooling system reliable and your engine protected.