Mercury – Quicksilver Engine Mount | Support & Vibration Dampener | MerCruiser Sterndrive & Inboard | 66284A2

Overview

A secure engine mount makes all the difference in how your boat feels on the water. The Mercury Marine 66284A2 Quicksilver Engine Mount is designed for MerCruiser sterndrive and inboard engines, providing solid support while absorbing vibration and engine movement. Over time, mounts wear out and can cause rattling, misalignment, or harsh vibration through the hull. Swapping in this OEM mount restores that smooth, stable feel and keeps your engine properly aligned for quieter, more comfortable operation.

Key Features

• Purpose: Supports and aligns the engine while minimizing vibration and noise.
• Material: Made from reinforced steel with heavy-duty rubber insulation for strength and shock absorption.
• Performance: Keeps drivetrain alignment precise for smooth shifting and reduced wear.
• Durability: Built to withstand torque, moisture, and continuous marine vibration.
• Design: OEM fit allows for quick installation using factory mounting points.
• Ease of Use: Simple bolt-in replacement — no modifications required.

Engine & Boat Compatibility

• Compatible with MerCruiser sterndrive and inboard engines
• Check your owner’s or service manual for exact model fitment

Performance & Real-World Benefits

The 66284A2 mount keeps your MerCruiser planted firmly where it belongs. It absorbs the shake and movement that come with normal engine torque, preventing misalignment between the engine and drive. A solid mount means less vibration in the cabin, smoother acceleration, and less strain on couplers and shafts.

If your engine feels rougher than usual or you hear new vibration noises, it’s often a sign the mounts are worn. Replacing them restores stability, reduces noise, and keeps everything in proper balance — making your boat feel tighter and smoother.

Why Choose Mercury OEM

The Quicksilver 66284A2 is a genuine Mercury Marine mount, built with the right materials and durometer (stiffness) to match factory performance. Cheaper aftermarket mounts may look similar but can be too soft or too rigid, causing poor alignment or early wear.

Mercury’s OEM mounts are tested under marine conditions for strength, heat resistance, and vibration damping. When you choose Mercury, you’re getting the right balance of stability and flexibility to protect your engine and drivetrain for years.

FAQ

Q1: What engines use this mount?
It’s made for MerCruiser sterndrive and inboard engines — confirm fit with your serial number or manual.

Q2: What’s the construction?
A combination of reinforced steel and marine-grade rubber, made to absorb engine vibration and shock.

Q3: Why replace the mount?
Old mounts flatten or crack over time, leading to noise, vibration, or drive misalignment.

Q4: How easy is the installation?
It installs quickly with standard tools, following your service manual’s alignment steps.

Q5: Why OEM instead of aftermarket?
Mercury OEM mounts match factory stiffness and alignment specs, ensuring long-lasting, smooth operation.