Description
Product Overview
The MSD 8565 Marine HEI Tower Distributor Cap is engineered for watercraft ignition systems. Constructed from injection‑molded DuPont Rynite plastic with a premium brass exterior finish, it offers both durability and a modern aesthetic. Measuring 6 x 16.5 x 6 inches and weighing just 14.4 ounces, the cap provides a lightweight yet robust solution. It includes an optional wire retainer to lock wires securely in place, ensuring consistent performance in harsh marine environments.
![[Product front view showing all components]](https://www.flowerpowerco.store/wp-content/uploads/2026/06/4c8f6739e21047c2b4a27c541afb745d.jpg)
Usage
Designed for universal fit across a wide range of watercraft, this distributor cap is ideal for boat owners, marine mechanics, and hobbyists seeking reliable ignition upgrades. Whether you are restoring a classic vessel or enhancing a modern jet ski, the cap’s corrosion‑resistant brass finish and secure wire retainer make it suitable for saltwater and freshwater applications.
Why Choose Us
MSD’s reputation for high‑performance marine components backs this distributor cap. The combination of DuPont Rynite plastic and brass ensures long‑term resistance to heat and corrosion. Each unit undergoes strict quality testing and comes with a warranty, giving you confidence in durability and after‑sales support.
Key Features
- Durable brass exterior finish resists corrosion in marine environments
- Injection‑molded Rynite plastic body provides heat resistance and lightweight design
- Universal fit accommodates most watercraft ignition systems
- Optional wire retainer secures wiring for reliable spark delivery
- Backed by MSD warranty and responsive customer support
FAQ
Is this cap compatible with all boat engines?
The cap features a universal fit design that works with the majority of marine HEI ignition systems. Verify your engine’s distributor dimensions for a perfect match.
What is the purpose of the wire retainer?
The optional wire retainer locks the ignition wires in place, preventing movement that could cause misfires or wear over time.
How does the brass finish benefit marine use?
Brass offers excellent corrosion resistance, especially in saltwater conditions, extending the life of the distributor cap.
Can I install this cap myself?
Yes, the cap is designed for straightforward installation with basic hand tools. Follow the included instructions for best results.
What warranty does MSD provide?
MSD offers a standard warranty covering manufacturing defects, and their support team is available for any service inquiries.







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