Mercury – Quicksilver 817275A09 Water Pump Repair Kit | Mercury Verado 4-Cylinder 135–300HP, EFI & Pro XS Outboards | 817275A09

Overview

A strong cooling system is the backbone of engine longevity, and the Quicksilver 817275A09 Water Pump Repair Kit keeps your Mercury Verado 4-cylinder outboard (135–300HP) running cool and protected. This OEM kit also fits 135–200HP EFI and 200–300HP Pro XS outboards, providing everything you need to rebuild your water pump and restore full factory-level cooling performance.

From impeller to seals, every component is designed to handle heat, pressure, and marine wear. Whether it’s preventative maintenance or a full rebuild, this kit gives you the confidence your outboard will stay cool under any load.

Key Features

• Purpose: Rebuilds the water pump system to restore cooling flow and prevent overheating.
• Fitment: For Mercury Verado 4-cylinder 135–300HP, Mercury EFI 135–200HP, and Mercury Pro XS 200–300HP outboards.
• Kit Contents: Includes impeller, upper and lower housings, oil carrier, retaining ring, plate, gaskets, seals, and O-rings.
• Design: Built for durability and precision fit under Mercury’s OEM standards.
• Ease of Use: All parts fit directly and install with common shop tools — no modifications needed.

Engine & Boat Compatibility

• Mercury Verado 4-cylinder outboards (135–300HP)
• Mercury EFI outboards (135–200HP)
• Mercury Pro XS outboards (200–300HP)
• Commonly used on performance boats, center consoles, bay boats, and offshore setups

Performance & Practical Benefits

The 817275A09 kit restores steady cooling and pressure throughout your motor. The precision-molded impeller delivers smooth, reliable water flow, while the seals and gaskets keep everything watertight under high load. Fresh pump housings and carriers ensure long life and consistent operation even in harsh saltwater environments.

Replacing a tired or failing pump with this OEM kit prevents overheating, improves engine efficiency, and extends the lifespan of vital components. It’s one of the most complete Verado repair kits available — built to make your cooling system as reliable as the day it left the factory.

Why Buy OEM

Mercury’s OEM kits are engineered for exact fit and long service life. Each part is made from materials tested to handle marine heat, vibration, and corrosion. Aftermarket kits often use lower-quality rubbers or mismatched tolerances that can lead to leaks or early failure.

With a genuine Quicksilver kit, you’re installing the same parts used in new Mercury builds. It fits right, performs right, and protects your outboard for seasons to come.

FAQ

Q1: What engines fit the Quicksilver 817275A09 kit?
A: It fits Mercury 135–200HP EFI, 135–300HP Verado, and 200–300HP Pro XS outboards.

Q2: What’s included in the kit?
A: The kit contains impeller, housings, oil carrier, retaining ring, plate, gaskets, seals, and O-rings — everything for a complete pump rebuild.

Q3: Can I install it myself?
A: Yes. With basic tools and a Mercury service manual, most boaters can perform the replacement at home.

Q4: How often should I service my water pump?
A: Mercury recommends inspecting the impeller annually and replacing the full assembly every 2–3 years.

Q5: Why choose OEM parts?
A: OEM parts ensure proper water flow, pressure, and fit — protecting your engine from overheating and extending its life.