Keeping your ignition system in tip top shape is paramount for maximum performance. If you have a poorly wired ignition system with hodge-podged connectors chances are it is costing you in terms of efficiency and it is putting your vehicle at risk of electrical failure or worse yet, fire. A simple way to clean up your engine bay and improve reliability and performance is with the addition of an aftermarket Mercury Grand Marquis ignition wire harness. Here at Andy's Auto Sport we have a great selection of Mercury Grand Marquis ignition wire harnesses for you to choose from. No matter how simple or complex your project, you are sure to find the perfect harness in our expansive catalog.

Many people set out to wire their own vehicles thinking it isn't too difficult. But poor crimps and splices are a recipe for disaster. Our Mercury Grand Marquis ignition wire harnesses come with the appropriate wires and high-grade connectors to ensure that you get your project properly sorted. If you are building a race car or custom project these harnesses are a must have. Thanks to their pre-bundled layouts and plug and play interface aftermarket Mercury Grand Marquis ignition wire harnesses allow you to cleanly wire your aftermarket ignition resulting in a professional look and great performance. Don't hack up your wiring, do the job right with an ignition wire harness.

Q: What is an ignition wire harness? Why buy one?
A: Your vehicle has lots of wires in the engine bay and under your dash board. Many of these wires are in charge of controlling your vehicle’s ignition system. If you are working on a restoration project, have added aftermarket ignition components or electronic accessories, or have suffered an electrical fire one of the best available options is to step up to an aftermarket ignition wire harness. These harnesses are designed to simplify and cleanup the wiring in your vehicle for a great aesthetic. They feature color coded wiring, well designed fuses, and circuit protection to ensure that your system remains protected from short circuits and power surges. With an ignition wire harness installed you will have a clean and reliable electrical system that will keep your ride running smooth for many years.