Mercury – Quicksilver Rotor | Ignition System Component | Coated Brass and Polymer | 13524T1

Overview

A strong spark is the heart of a dependable engine, and the Mercury Marine 13524T1 Quicksilver Rotor keeps that spark firing clean and steady. Built for Marinized General Motors V8 engines running Thunderbolt IV and V ignition systems, it’s a small part that does a big job — delivering power evenly and reliably through every cylinder. Whether you’re running offshore or idling into the dock, this rotor gives your MerCruiser engine the consistent ignition it needs to perform like new.

Key Features

• Purpose: Distributes ignition voltage from the coil to each cylinder with precise timing and reliability.
• Material: Constructed from reinforced polymer with a coated brass rotor blade for long-lasting conductivity.
• Design Detail: High strength-to-weight ratio resists cracking, vibration, and thermal stress.
• Performance: Brass contact reduces corrosion and resists RFI interference with sensitive electronics.
• Compatibility: Fits Marinized GM-based V8 MerCruiser engines with Thunderbolt IV and Thunderbolt V ignition systems.
• OEM Quality: Manufactured to Mercury Marine factory standards for a perfect fit and long service life.

Engine & Boat Compatibility

• V8 MerCruiser sterndrive and inboard engines based on GM blocks.
• Thunderbolt IV and V ignition systems used in a variety of MerCruiser configurations.
• Common on runabouts, performance cruisers, and offshore sport boats using V8 sterndrives.
• Built for both saltwater and freshwater environments.

Performance & Practical Benefits

The 13524T1 rotor is designed to keep your ignition system firing precisely when it should — every revolution, every trip. The lightweight polymer body holds up under vibration, while the brass blade delivers a clean, strong spark that won’t fade under load.

Its construction helps resist thermal cracking and electrical interference, keeping your gauges, radios, and onboard electronics operating without disruption. The result is smoother idle, stronger throttle response, and confidence that your engine’s ignition system is delivering exactly what it should — steady, dependable performance.

Why Buy OEM

Not all rotors are created equal. Automotive versions might look similar, but they’re not designed for the heat, moisture, and vibration of a marine engine compartment. The Quicksilver 13524T1 is a genuine Mercury Marine part, made for the unique stresses of the water — from salt spray to long hours at high RPM.

Choosing OEM means exact fit, perfect balance, and tested reliability. You’re not taking chances on something “close enough” — you’re using the same component Mercury engineers trust in their factory builds. With this rotor, your ignition stays strong, consistent, and tuned to the precise standards your engine was built to meet.

FAQ

Q1: Which engines use this rotor?
It fits Marinized GM V8 MerCruiser engines equipped with Thunderbolt IV and V ignition systems.

Q2: What makes this rotor different from automotive versions?
It’s made to Mercury Marine specs — balanced for marine RPM ranges, heat resistant, and corrosion proof.

Q3: How can I confirm it fits my setup?
Check your service or owner’s manual and verify the part number 13524T1 for your ignition system.

Q4: Can it handle saltwater use?
Yes. It’s engineered to resist salt corrosion and long-term exposure to marine moisture.

Q5: Is installation simple?
Yes. Most boaters can replace it during a tune-up using basic hand tools — it’s a straightforward fit.