Mercury – Quicksilver 819503A5 Solenoid Kit | Mercury TwoStroke & Jet Outboards | 819503A5

Overview

When your outboard hesitates to turn over, the solenoid is often the culprit. The Mercury 819503A5 Solenoid Kit is a genuine replacement for select Mercury TwoStroke and Jet outboards, restoring strong, reliable starts with every turn of the key.

This OEM solenoid is built for harsh marine conditions — sealed to resist moisture and corrosion, and tested to Mercury’s own standards for durability and performance. It’s a simple, dependable part that keeps your outboard firing up instantly, season after season.

Key Features

• Purpose: Replaces a worn or failing starter solenoid for consistent ignition power.
• Fitment: Fits Mercury 30–40HP 2-cylinder (0G55314–0T979999; 1B000001 & up), 30HP Jet 3-cylinder (0G590000–0T408999), 40HP Jet (0G590000–0T980000; 0T980000 & up), 45HP Jet (0D000750–0T129554), and 50–60HP 3-cylinder (0D000750–0T979999; 0T980000 & up) outboards.
• Included: Comes with a solenoid and mounting clamp.
• Strength: Wiring is rated to handle 20 pounds of pull force for maximum durability.
• Marine Ready: Built to perform in salt, brackish, and freshwater environments and meets U.S. Coast Guard standards.

Engine & Boat Compatibility

• Mercury TwoStroke and Jet outboards from 30–60HP
• Common on small runabouts, jet boats, and fishing rigs

Performance & Practical Benefits

The 819503A5 Solenoid Kit restores dependable current flow from your battery to your starter motor, eliminating those weak or inconsistent cranks. Once installed, it provides steady, full voltage with every start. The rugged construction resists corrosion and vibration — a must for marine life — while the wiring and contacts are designed to hold strong under load.

The result: faster, smoother starts and less time worrying about electrical issues when you’re ready to hit the water.

Why Buy OEM

Mercury’s OEM solenoids are designed and tested for the conditions that outboards face daily — salt, heat, and constant movement. They’re sealed, pressure-tested, and built to outlast generic aftermarket replacements that often corrode or fail prematurely.

A genuine Quicksilver solenoid fits perfectly, performs flawlessly, and gives you the same reliability your motor had when it was new.

FAQ

Q1: Which engines fit the Quicksilver 819503A5 solenoid?
A: It fits Mercury 30–60HP TwoStroke and Jet outboards, including the 30–40HP 2-cylinder and 3-cylinder Jet models listed above.

Q2: What’s included in the kit?
A: One solenoid and one mounting clamp.

Q3: Can I install it myself?
A: Yes. It installs easily with basic hand tools — no special equipment required.

Q4: Is it suitable for saltwater use?
A: Absolutely. The solenoid is sealed and corrosion-resistant for use in any marine environment.

Q5: Why choose OEM over aftermarket?
A: OEM solenoids provide better fit, durability, and long-term reliability, keeping your outboard starting strong for years.