Mercury – Quicksilver Ignition Tune-Up Kit | Ignition System Component | Mallory Conventional | 5090Q1

Overview

When your classic MerCruiser V8 starts to lose its edge — rough idle, weak spark, sluggish power — a good tune-up can bring it right back to life. The Mercury Marine 5090Q1 Quicksilver Ignition Tune-Up Kit gives you everything you need to refresh the ignition on marinized GM or Ford V8 MerCruiser engines equipped with Mallory conventional ignition systems. This OEM kit restores strong spark delivery and smooth performance, keeping your boat reliable and ready to run all season.

Key Features

• Purpose: Replaces worn ignition components for cleaner spark and improved performance.
• Contents: Includes condenser, points, rotor, and attaching hardware — a complete 6-piece kit.
• Material: Built from marine-grade materials to resist corrosion, heat, and vibration.
• Performance: Helps restore consistent spark timing and dependable ignition at all RPM ranges.
• Design: Engineered to Mercury OEM specifications for easy installation and perfect fit.
• Compatibility: For marinized V8 MerCruiser engines made by GM or Ford with Mallory conventional ignition systems.

Engine & Boat Compatibility

• Marinized GM V8 MerCruiser engines with Mallory conventional ignition
• Marinized Ford V8 MerCruiser engines with Mallory conventional ignition

Performance & Real-World Benefits

The 5090Q1 tune-up kit brings new life to older ignition systems. By replacing worn points, condenser, and rotor, it ensures stronger spark, smoother idle, and faster starts. These components are built to withstand the heat, moisture, and vibration that come with marine use — keeping your ignition consistent and your performance sharp.

You’ll feel the difference the first time you turn the key. Fresh ignition parts reduce misfires, improve fuel economy, and make throttle response snappier. It’s a simple upgrade that restores the confidence and reliability of your MerCruiser V8.

Why Choose Mercury OEM

The Quicksilver 5090Q1 is a genuine Mercury Marine kit, designed specifically for MerCruiser ignition systems. Aftermarket parts can look similar but often don’t meet the exact tolerances or use marine-rated materials needed to survive in harsh boating conditions.

Mercury’s OEM tune-up kits are built to deliver clean spark and long-term reliability, with parts tested for RFI resistance and precise timing. Choosing OEM means your ignition performs the way it was meant to — strong, consistent, and dependable.

FAQ

Q1: Which engines does this kit fit?
It’s made for marinized GM and Ford V8 MerCruiser engines with Mallory conventional ignition systems.

Q2: What’s included in the kit?
You’ll get the condenser, points, rotor, and all necessary attaching hardware.

Q3: How does this kit improve performance?
By replacing old components, it restores a strong, even spark for smoother running and better fuel efficiency.

Q4: Is it hard to install?
No — it’s designed for a straightforward fit using standard tools.

Q5: Why use OEM parts?
Mercury’s OEM components are built for marine use, ensuring durability, perfect fit, and long-term reliability.