Mercury – Quicksilver Sea Water Pump Impeller Kit | Cooling System Component | Bravo I, II & III | 59362A4

Overview

A healthy impeller means a healthy cooling system, and the Mercury Marine 59362A4 Quicksilver Sea Water Pump Impeller Kit delivers everything you need to restore proper water flow in your MerCruiser Bravo I, II, and III drives with the two-piece plastic pump body. This 5-piece OEM kit includes the impeller, face plates, and o-ring — all built to Mercury’s original specifications. Made from flexible, marine-grade elastomer, the impeller handles heat, vibration, and temperature swings without cracking or losing shape. Reliable cooling starts here.

Key Features

• Purpose: Replaces worn impeller and sealing components in the sea water pump to restore proper cooling flow.
• Contents: Includes impeller, upper and lower face plates, and o-ring for a complete repair.
• Material: Made from durable, high-flexibility elastomer designed to perform across wide temperature ranges.
• Performance: Ensures consistent water pressure and flow to protect against overheating.
• Durability: Built to resist wear, cracking, and distortion under long-term marine conditions.
• Ease of Use: Direct-fit OEM kit designed for easy installation with basic tools.

Engine & Boat Compatibility

• MerCruiser Bravo I drives (two-piece sea water pump body)
• MerCruiser Bravo II drives (two-piece sea water pump body)
• MerCruiser Bravo III drives (two-piece sea water pump body)

Performance & Real-World Benefits

The 59362A4 impeller kit keeps your cooling system working efficiently by replacing the components that wear out most often. A fresh impeller ensures strong, steady water flow — protecting your engine from heat buildup and maintaining performance even during long runs.

The flexible rubber impeller blades are designed to maintain contact with the housing walls, providing consistent cooling pressure at all speeds. With the included plates and o-ring, you can restore your entire pump assembly in one go, giving you peace of mind every time you’re out on the water.

Why Choose Mercury OEM

The Quicksilver 59362A4 is a genuine Mercury Marine kit, precision-engineered for Bravo drive cooling systems. Aftermarket kits often use stiffer rubber compounds or imprecise parts that can reduce flow and wear out faster.

Mercury OEM impellers are tested under real-world marine conditions for flexibility, strength, and performance. Choosing genuine parts ensures proper cooling, longer service life, and protection for your engine and pump system.

FAQ

Q1: What drives does this impeller kit fit?
It fits MerCruiser Bravo I, II, and III drives with the two-piece plastic sea water pump body.

Q2: What’s included in the kit?
The kit includes the impeller, upper and lower face plates, and o-ring — everything needed for a full replacement.

Q3: What’s the impeller made of?
A marine-grade elastomer that remains flexible through heat and seasonal temperature changes.

Q4: When should I replace it?
Inspect annually and replace every two seasons or 200 hours, or sooner if water flow decreases.

Q5: Why use OEM parts?
OEM impellers guarantee proper fit, flow, and flexibility, helping your cooling system perform exactly as designed.