Mercury – Quicksilver 817275A08 Upper Water Pump Repair Kit | Mercury Verado & EFI Outboards (65–275HP) | 817275A08

Overview

A healthy cooling system keeps your engine alive. The Quicksilver 817275A08 Upper Water Pump Repair Kit gives your Mercury Verado and EFI outboards (65–275HP) everything needed to restore proper water flow and protect against overheating. Designed for long service life, this OEM kit includes all the critical parts — from gaskets and O-rings to the impeller and upper housing — built to Mercury’s factory specs for precise fit and dependable performance.

Whether you’re doing a scheduled maintenance or replacing a worn pump, this kit delivers the same cooling performance your outboard had when it was new.

Key Features

• Purpose: Repairs and restores your engine’s water pump system for reliable cooling.
• Fitment: For Mercury EFI and Jet outboards (65–115HP, serial 2B095049 & up) and Verado 135–275HP outboards (serial ranges 0T010000–2B095049 & up).
• Kit Contents: Includes impeller, gaskets, O-rings, plates, key, fittings, hardware, and upper housing.
• Durability: Designed for high flow and long life, even in hot or high-demand marine conditions.
• Ease of Install: All parts fit directly and can be installed with common shop tools.

Engine & Boat Compatibility

• 65–115HP EFI & Jet outboards (2B095049 & up)
• 135–175HP Mercury Verado outboards (1B227000 & up)
• 200–225HP Verado outboards (0T980000 & up)
• 250–275HP Verado outboards (0T010000 & up)
• Common on center consoles, pontoons, bay boats, and offshore fishing setups

Performance & Practical Benefits

The 817275A08 kit restores cooling efficiency and water flow to your Verado’s powerhead. The impeller and housing work together to move water quickly and evenly through the cooling passages, keeping engine temperatures stable under load.

Mercury’s high-grade materials resist wear from sand, silt, and saltwater exposure. Regular pump maintenance with OEM parts helps prevent overheating, corrosion, and impeller failure — all of which can lead to costly repairs if ignored. With this complete kit, your outboard runs cooler, smoother, and more efficiently.

Why Buy OEM

Mercury’s OEM water pump kits are built to exact tolerances and tested for real-world marine conditions. Aftermarket kits often use cheaper rubbers or metals that don’t fit as tightly or wear faster under heat and pressure.

A genuine Quicksilver kit gives you the assurance of factory-level performance and durability. It’s built by the same engineers who designed your Verado’s cooling system — made to fit right and last longer.

FAQ

Q1: What engines fit the Quicksilver 817275A08 kit?
A: It fits Mercury Verado 135–275HP and Mercury EFI & Jet outboards 65–115HP, depending on serial range.

Q2: What’s included in the kit?
A: The kit comes with impeller, O-rings, gaskets, plates, key, fittings, hardware, and upper housing — everything for a full pump rebuild.

Q3: How often should I replace the water pump?
A: Mercury recommends inspecting it annually and replacing it every 2–3 years, depending on use.

Q4: Can I install it myself?
A: Yes, with basic tools and a Mercury service manual, most owners can handle installation.

Q5: Why use OEM parts?
A: OEM kits ensure proper fit, flow rate, and long-term reliability. Aftermarket versions can cause leaks or reduced cooling.