Mercury – Quicksilver Ignition Tune-Up Kit | Ignition System Component | Delco Conventional | 34235Q1

Overview

Keeping your MerCruiser firing on all cylinders starts with a solid ignition system. The Mercury Marine 34235Q1 Quicksilver Ignition Tune-Up Kit gives you everything you need to restore crisp, reliable spark in your Marinized 4- or 6-cylinder GM engines with Delco conventional ignition systems. This complete kit includes a rotor, condenser, and points, each engineered to handle the heat, vibration, and moisture of marine environments. It’s a quick, affordable way to bring back strong ignition performance, smoother running, and easier starts on your MerCruiser.

Key Features

• Purpose: Refreshes key ignition components for strong, reliable spark and consistent engine performance.
• Contents: Includes rotor, condenser, and breaker points — a complete 3-piece kit.
• Compatibility: Fits MerCruiser Marinized 4- and 6-cylinder GM engines with Delco conventional (non-HEI) ignition systems.
• Design Detail: Rotor has a high strength-to-weight ratio to resist cracking and heat damage.
• Performance: Condenser and points deliver steady spark energy and protect against voltage loss.
• RFI Resistance: Designed to reduce radio frequency interference (RFI) with onboard electronics.

Engine & Boat Compatibility

• MerCruiser 4-cylinder and 6-cylinder inline engines based on General Motors platforms.
• Delco conventional ignition systems used in classic runabouts, cruisers, and inboard boats.
• Suitable for both freshwater and saltwater use.

Performance & Practical Benefits

The 34235Q1 tune-up kit brings your ignition system back to factory performance in one go. The new points and condenser help maintain consistent coil voltage, while the rotor ensures the spark reaches every cylinder cleanly and on time. Together, they improve fuel burn, throttle response, and idle stability.

With Mercury’s marine-grade materials, these parts resist corrosion, thermal stress, and vibration — common causes of ignition failure in marine engines. You’ll notice the difference right away: quicker starts, smoother acceleration, and dependable power every time you turn the key.

Why Buy OEM

Ignition components are small but critical — and the Quicksilver 34235Q1 is a genuine Mercury Marine kit built specifically for MerCruiser GM-based engines. Aftermarket parts can vary in calibration or materials, causing weak spark or short service life.

Mercury’s OEM ignition kits are tested for precision timing, conductivity, and resistance to RFI, ensuring everything works together perfectly. It’s a simple way to restore your ignition system to factory standards and avoid guesswork.

FAQ

Q1: What engines does this kit fit?
It fits MerCruiser Marinized 4- and 6-cylinder GM engines with Delco conventional ignition systems.

Q2: What’s included in the kit?
A rotor, condenser, and breaker points — everything needed for a complete ignition refresh.

Q3: How often should I perform a tune-up?
Typically once a season, or every 100 hours, depending on engine usage.

Q4: Does it help with hard starting or misfiring?
Yes — replacing worn ignition components restores consistent spark and smoother performance.

Q5: Why choose Mercury OEM?
OEM parts ensure proper fit, materials, and performance designed specifically for marine ignition systems.