Mercury – Quicksilver Sea Water Pump Housing | For V6 & V8 MerCruiser Engines with Serpentine Belt System | 807151A9

Overview

Saltwater takes no prisoners, especially when it comes to metal pump housings. The Mercury Marine 807151A9 Quicksilver Sea Water Pump Housing is designed to solve that problem with a corrosion-proof, marine-grade plastic body that keeps your cooling system running smooth. Built for V6 and V8 MerCruiser sterndrive engines made by General Motors, this replacement housing fits engines with serpentine belt accessory systems and electric fuel pumps. It’s a direct OEM replacement designed to keep your cooling system reliable and your boat performing at its best — season after season.

Key Features

• Purpose: Replaces corroded or worn sea water pump housings to restore steady cooling performance.
• Construction: Made from durable, corrosion-resistant plastic to outlast brass housings in saltwater.
• Compatibility: Designed for GM-built V6 and V8 MerCruiser sterndrive engines with serpentine belt systems.
• Performance: Maintains consistent water flow and cooling efficiency.
• Ease of Use: Direct-fit OEM replacement for simple installation and perfect alignment.

Engine & Boat Compatibility

• V6 and V8 MerCruiser sterndrive engines made by General Motors
• For models using serpentine belt accessory systems and electric fuel pumps

Performance & Real-World Benefits

The 807151A9 sea water pump housing ensures reliable cooling in the toughest conditions. Traditional brass housings are strong but prone to corrosion and pitting, especially in saltwater. This upgraded plastic version eliminates that issue, maintaining full cooling efficiency and extending the life of your pump.

Built to Mercury’s exact dimensions, it fits seamlessly and provides the same dependable water flow your engine was designed for. The lightweight, durable housing resists heat, vibration, and chemical breakdown — delivering long-term protection and steady cooling performance on every trip.

Why Choose Mercury OEM

The Quicksilver 807151A9 is a genuine Mercury Marine part, engineered and tested to the same standards as the components installed at the factory. Aftermarket alternatives often cut corners on materials or dimensions, leading to leaks, poor fitment, or premature wear.

Mercury’s OEM plastic housing is precision-molded to ensure durability, perfect fit, and zero compromise in cooling flow. It’s the same part Mercury-certified technicians use for professional service — built to handle marine heat and salt exposure without breaking down.

FAQ

Q1: What engines does this fit?
It fits V6 and V8 MerCruiser engines made by General Motors, equipped with serpentine belt systems and electric fuel pumps.

Q2: Why use plastic instead of brass?
Plastic resists corrosion and pitting far better in saltwater, reducing maintenance and extending pump life.

Q3: Is it a direct replacement?
Yes — it’s a direct-fit OEM housing that matches the original design perfectly.

Q4: How does it perform compared to metal housings?
It provides equal cooling performance with none of the corrosion issues metal versions face.

Q5: Why OEM instead of aftermarket?
Because Mercury OEM parts guarantee an exact fit and the proven durability that keeps your engine running cool for years.