Mercury – Quicksilver Sea Water Pump Housing | For V8 MerCruiser Engines with V-Belt Systems | 807151A8

Overview

Saltwater is tough on metal, but the Mercury Marine 807151A8 Quicksilver Sea Water Pump Housing is built to handle it. Designed for V8 MerCruiser engines made by General Motors (454 and 502 CID, Gen V and VI), this durable plastic housing replaces traditional brass pump bodies that can corrode or seize over time. It’s made to fit engines with V-belt accessory pulley systems and mechanical fuel pumps, delivering long-lasting performance and the same reliable cooling flow your engine was built for.

Key Features

• Purpose: Replaces corroded or worn sea water pump housings to maintain consistent engine cooling.
• Construction: Made from corrosion-resistant plastic for superior durability in saltwater.
• Compatibility: Fits GM-built V8 MerCruiser 454 and 502 CID (Gen V and VI) engines with V-belt systems.
• Performance: Designed for steady water flow and extended pump life.
• Ease of Use: Direct OEM replacement for simple installation and a perfect fit.

Engine & Boat Compatibility

• V8 MerCruiser engines built by General Motors
• 454 CID (Gen V and VI)
• 502 CID (Gen V and VI)
• Engines with V-belt accessory systems and mechanical fuel pumps

Performance & Real-World Benefits

The 807151A8 pump housing is built for the long haul. Metal housings can corrode or pit when exposed to saltwater, leading to poor cooling performance and early pump failure. This OEM plastic version eliminates that problem entirely, ensuring a steady, reliable flow of cooling water to your engine.

Because it’s made to Mercury’s exact specifications, the fit is precise and the water flow remains balanced across your cooling system. The plastic design resists heat, vibration, and corrosion, making it ideal for marine conditions where durability and dependability matter most.

Why Choose Mercury OEM

The Quicksilver 807151A8 is a genuine Mercury Marine replacement, built for the same engines it protects. Aftermarket housings might look the part but can have small dimensional differences or use cheaper materials that degrade faster in marine environments.

Mercury’s OEM design ensures corrosion-free performance, proper fit, and long-term reliability — the same quality that goes into every new MerCruiser engine. It’s trusted by boaters and technicians worldwide to keep engines running cool and efficient.

FAQ

Q1: What engines does this housing fit?
It’s made for GM-built V8 MerCruiser engines (454 and 502 CID, Gen V and VI) with V-belt systems and mechanical fuel pumps.

Q2: Why use plastic instead of brass?
Plastic is lightweight, corrosion-proof, and won’t seize or pit like metal in saltwater.

Q3: Is it a direct replacement?
Yes — it’s a direct-fit OEM housing built to match the original design.

Q4: Will it affect water flow?
No, it maintains the same flow rate and cooling efficiency as the original.

Q5: Why OEM over aftermarket?
Because Mercury OEM parts are engineered for exact fit and durability, ensuring long-term cooling performance in harsh marine conditions.