Mercury – Quicksilver Sea Water Pump Repair Kit | Cooling System Component | 2-Piece Plastic Pump | 72774A89

Overview

If your cooling system is losing pressure or running weak, this Mercury Marine 72774A89 Quicksilver Sea Water Pump Repair Kit brings it back to life. Designed for 2-piece plastic body sea water pumps, this 6-piece OEM kit includes everything you need to rebuild your pump and restore steady water flow. Each part is made to Mercury’s original specs, ensuring the same durability and performance as the factory components.

Key Features

• Purpose: Replaces worn or damaged components to restore proper cooling water flow.
• Contents: Includes 6 key components needed for rebuilding the 2-piece plastic body pump.
• Material: Made with marine-grade rubber and corrosion-resistant materials for long-term use.
• Performance: Maintains high flow rates and consistent cooling efficiency.
• Durability: Handles heat, vibration, and saltwater exposure without warping or cracking.
• Ease of Service: Installs easily using standard tools — fits perfectly with Mercury’s OEM pump design.

Engine & Boat Compatibility

• Mercury and MerCruiser engines equipped with 2-piece plastic body sea water pumps

Performance & Real-World Benefits

The 72774A89 repair kit keeps your cooling system performing like new by restoring water pressure and volume. Over time, pump components wear and lose efficiency — this rebuild kit replaces those parts with fresh, factory-matched pieces that fit precisely and last longer.

Once installed, you’ll get smoother water flow, better temperature control, and stronger protection against overheating. It’s a quick and affordable way to keep your cooling system in top shape.

Why Choose Mercury OEM

The Quicksilver 72774A89 is a genuine Mercury Marine part, engineered to exact factory standards for fit and performance. Aftermarket kits might not include all required components or use lower-quality rubber that fails under heat and pressure.

Mercury OEM kits are designed and tested under real marine conditions to ensure proper sealing, reliable performance, and long-lasting durability. Using genuine parts helps protect your cooling system and your engine.

FAQ

Q1: What water pumps does this repair kit fit?
It’s made for 2-piece plastic body sea water pumps used on various Mercury and MerCruiser engines.

Q2: What’s included?
The kit contains 6 components to replace worn internal parts of the sea water pump.

Q3: How often should I rebuild the pump?
Inspect annually and replace every 2 years or 200 hours for best results.

Q4: What are the parts made from?
Each piece uses marine-grade materials designed to resist corrosion and wear.

Q5: Why OEM instead of aftermarket?
OEM kits guarantee proper fit, durability, and cooling efficiency — key to protecting your engine.