Mercury – Quicksilver 816761Q13 Spark Plug Wire Kit | 3.0L & LX MerCruiser Engines | Delco Digital Ignition | 816761Q13

Overview

Reliable ignition starts with the right connection. The Quicksilver 816761Q13 Spark Plug Wire Kit keeps your 3.0L and LX MerCruiser engines (1990–1995) running smooth and firing strong. Designed for Delco digital ignition systems, this OEM wire set ensures clean spark delivery, steady idle, and long-term reliability in real marine conditions.

Each wire is precision-cut to the exact length your engine needs, with snug-fitting boots that keep moisture out and the spark where it belongs. Built to Mercury’s high standards, it’s a simple upgrade that helps your boat start easy and perform like it should.

Key Features

• Purpose: Replaces old or cracked plug wires to restore consistent ignition performance.
• Fitment: For 3.0L and LX MerCruiser engines (1990–1995) with Delco digital ignition systems.
• Kit Contents: Complete set of 4 spark plug wires, each with molded boots at the spark plug ends.
• Design: Each wire is factory-length for clean routing and easy installation.
• Durability: Built for marine-grade heat, vibration, and moisture resistance to ensure long service life.

Engine & Boat Compatibility

• 3.0L and LX MerCruiser engines (1990–1995)
• Delco digital ignition systems
• Common in runabouts, compact cruisers, and small tow boats

Performance & Practical Benefits

The 816761Q13 kit keeps your ignition system firing efficiently, reducing misfires and improving throttle response. With low-resistance wire cores, it delivers full spark energy to every cylinder, giving you smoother idle, better fuel economy, and quicker starts.

The heavy-duty insulation stands up to marine heat and moisture, while the boots seal tight to prevent corrosion. Each wire is cut to fit, so installation is straightforward — swap them out one at a time, and you’ll be back on the water with reliable spark and clean power.

Why Buy OEM

Mercury’s OEM plug wires are purpose-built for marine use — not repurposed automotive parts. Every Quicksilver set is tested for correct resistance, flexibility, and insulation integrity under real-world conditions. Aftermarket versions often lack the proper fit or use lower-grade insulation that fails early in the marine environment.

With genuine Quicksilver wires, you’re getting the exact fit and performance Mercury intended, along with the durability to handle years of heat, vibration, and salt exposure.

FAQ

Q1: Which engines fit the Quicksilver 816761Q13 kit?
A: It fits 3.0L and LX MerCruiser engines (1990–1995) with Delco digital ignition systems.

Q2: How many wires are included?
A: The kit includes four spark plug wires, each pre-fitted with plug-end boots.

Q3: Can I install them myself?
A: Yes. Replace the wires one at a time to keep the firing order correct — it’s a simple DIY job.

Q4: Are these wires safe for saltwater use?
A: Absolutely. They’re made from corrosion-resistant materials designed for the marine environment.

Q5: Why choose OEM wires?
A: OEM wires provide the right resistance, perfect fit, and long-term reliability that aftermarket parts often can’t match.