Mercury – Quicksilver Intake Manifold Gasket Set | For MerCruiser 7.4L & 8.2L MPI Engines | 805522A1

Overview

Keeping a big-block MerCruiser sealed tight takes the right parts, and the Mercury Marine 805522A1 Quicksilver Intake Manifold Gasket Set delivers exactly that. Made for 1996–2001 MerCruiser 7.4L and 8.2L MPI inboard and sterndrive engines, this eight-piece set is built to handle marine-grade heat, vibration, and pressure without giving up its seal. Whether you’re rebuilding, refreshing, or fixing a small coolant or vacuum leak, these gaskets fit perfectly and keep your engine running smooth and efficient — the way it should.

Key Features

• Purpose: Creates a tight, lasting seal between the intake manifold and cylinder heads.
• Design: Includes eight high-quality gaskets, built to match OEM fit and durability.
• Construction: Crafted from marine-grade composite materials to handle fuel, oil, and heat.
• Performance: Keeps air, fuel, and coolant flowing where they belong — no leaks, no guesswork.
• Ease of Use: Direct-fit design makes installation simple with standard tools.

Engine & Boat Compatibility

• MerCruiser sterndrive and inboard engines (model years 1996–2001)
• 7.4L MPI
• 8.2L MPI

Performance & Real-World Benefits

Over time, intake gaskets wear down from constant heat and pressure. When that happens, you can lose vacuum, overheat, or start pulling air where it shouldn’t be. Replacing them with the 805522A1 Quicksilver set restores the seal that keeps your engine breathing right.

These gaskets are tough but flexible — they hold up under vibration, don’t shrink or crack, and seal cleanly against the manifold and heads. The result is steady performance, consistent idle, and proper fuel-air mix every time you hit the water. It’s one of those behind-the-scenes fixes that makes your boat run better and keeps it that way.

Why Choose Mercury OEM

The Quicksilver 805522A1 gasket set comes straight from Mercury, designed for the unique conditions marine engines face. Aftermarket gaskets might look similar, but many can’t handle the constant heat cycling, fuel exposure, and saltwater environment that your MerCruiser deals with.

Mercury’s OEM gaskets are cut to exact tolerances and made with marine-rated materials that stay sealed season after season. It’s the same set Mercury technicians rely on — built for reliability, precision, and peace of mind on the water.

FAQ

Q1: What engines does this gasket set fit?
It’s made for 1996–2001 MerCruiser 7.4L and 8.2L MPI inboard and sterndrive engines.

Q2: How many gaskets are included?
There are eight gaskets in the kit — enough for a full intake manifold replacement.

Q3: Why replace the intake gaskets?
Old or damaged gaskets can cause vacuum leaks or coolant seepage, leading to poor performance or overheating.

Q4: How hard is the install?
It’s straightforward — if you’re doing an intake or head service, these gaskets go right in with basic tools.

Q5: Why OEM instead of aftermarket?
Because Mercury OEM gaskets are proven to last, offering the exact fit and material strength needed for marine engines.