Mercury – Quicksilver Sea Water Pump Housing | For V6 & V8 MerCruiser Sterndrive Engines | 807151A12

Overview

Saltwater can be brutal on metal parts, but the Mercury Marine 807151A12 Quicksilver Sea Water Pump Housing is built to fight back. Designed for V6 and V8 MerCruiser sterndrive engines made by General Motors (454 and 502 CID), this housing is molded from corrosion-resistant plastic — the perfect material for longevity in marine conditions. It’s built for engines equipped with a V-belt pulley system and electric fuel pumps, offering the same reliability and fit as the original brass version without the corrosion concerns.

Key Features

• Purpose: Replaces corroded or worn sea water pump housings to maintain steady cooling flow.
• Design: Made from durable plastic to resist corrosion in saltwater environments.
• Compatibility: Fits specific GM-built V6 and V8 MerCruiser sterndrive engines (454 and 502 CID).
• Performance: Maintains consistent cooling and prevents premature pump wear.
• Ease of Use: Direct OEM replacement for a quick, secure fit.

Engine & Boat Compatibility

• V6 and V8 MerCruiser sterndrive engines made by General Motors (454 and 502 CID)
• Engines with V-belt accessory pulleys and electric fuel pumps

Performance & Real-World Benefits

The 807151A12 pump housing plays a critical role in your engine’s cooling system. Over time, metal housings can corrode internally, reducing water flow and efficiency. This plastic replacement solves that problem for good, maintaining consistent water circulation through your engine while standing up to years of salt exposure.

Because it’s built to Mercury’s exact specifications, it installs perfectly and seals tightly, restoring full cooling performance. With this housing in place, your engine runs cooler, lasts longer, and avoids the overheating issues that can ruin a good day on the water.

Why Choose Mercury OEM

The Quicksilver 807151A12 is a genuine Mercury Marine replacement, designed and tested for real-world marine use. Aftermarket parts might look similar, but they rarely match Mercury’s precision fit, material quality, or flow efficiency.

Mercury’s OEM components are engineered to the same standards used in new MerCruiser engines, ensuring reliable cooling and a long service life — especially in demanding saltwater conditions. It’s protection you can count on, built by the same people who designed your engine.

FAQ

Q1: What engines does this housing fit?
It’s made for GM-built V6 and V8 MerCruiser engines (454 and 502 CID) with V-belt systems and electric fuel pumps.

Q2: Why switch to plastic?
Plastic is corrosion-proof and lasts longer than brass or metal in saltwater environments.

Q3: Will it fit the same as the original?
Yes — it’s a direct OEM replacement with identical fit and flow characteristics.

Q4: How does it affect performance?
It restores proper cooling flow, helping prevent overheating and pump wear.

Q5: Why use Mercury OEM instead of aftermarket?
Because Mercury OEM parts guarantee exact fit, durability, and reliable cooling performance that aftermarket versions can’t match.