Mercury – Quicksilver 817275A2 Water Pump Upper Housing Kit | Mercury 4-Stroke Outboards (40–300HP) | 817275A2

Overview

Keep your outboard’s cooling system performing like new with the Quicksilver 817275A2 Water Pump Upper Housing Kit. Designed for most Mercury 4-stroke outboards (40–300HP), this OEM kit replaces worn or corroded upper housing components to maintain strong, reliable water flow through your cooling system.

The five-piece kit includes the upper housing, seals, and a stainless steel faceplate gasket — a corrosion-resistant upgrade that stands up to saltwater and long hours on the water. It’s the perfect solution when your housing shows wear but your impeller is still in good shape.

Key Features

• Purpose: Restores the water pump housing and seal integrity for consistent cooling performance.
• Fitment: For most Mercury 4-stroke outboards (40–300HP); check your owner’s manual for model exceptions.
• Kit Contents: Includes upper housing, seals, gaskets, and stainless-steel faceplate gasket for added corrosion protection.
• Design: Precision-built to Mercury Marine factory specs for a perfect fit and leak-free performance.
• Note: This kit does not include the impeller.

Engine & Boat Compatibility

• Mercury 4-stroke outboards (40–300HP)
• Commonly found on center consoles, pontoons, and fishing boats

Performance & Practical Benefits

The 817275A2 kit helps your cooling system work at peak efficiency by replacing the upper pump components that see the most heat and wear. The stainless-steel faceplate resists corrosion in saltwater, and the tight-fitting seals help maintain proper water pressure.

Installing this kit ensures smoother water flow, less risk of overheating, and longer service life for your engine. It’s an easy maintenance step that can prevent expensive cooling system repairs later on.

Why Buy OEM

Mercury’s OEM kits are made for exact fit and long-term durability. Every housing and gasket is precision-molded to Mercury’s specs and tested in real marine environments. Aftermarket kits may cut corners with cheaper plastics or gasket materials that don’t hold up to high heat or salt.

A genuine Quicksilver housing kit gives you the right fit, the right materials, and the confidence that comes with Mercury engineering.

FAQ

Q1: What engines fit the Quicksilver 817275A2 kit?
A: It fits most Mercury 4-stroke outboards (40–300HP). Check your owner’s manual for exact compatibility.

Q2: What’s included in the kit?
A: The kit includes the upper housing, seals, gaskets, and a stainless-steel faceplate gasket.

Q3: Does this kit include the impeller?
A: No. The impeller is sold separately.

Q4: Why use a stainless-steel faceplate?
A: Stainless steel provides better corrosion resistance and longer life in saltwater use.

Q5: Can I install it myself?
A: Yes. With basic hand tools and a service manual, most boat owners can complete the job easily.