If you dissect an ignition wire, you will realize that it is radically different from an ordinary electrical wire. Instead of copper, its central conductor is a magnetic ferrite. Instead of a single-layer plastic or rubber insulation, it has at least five layers of insulation. The first layer is pure silicone.

The next is a high-tensile strength fiberglass braid, which is then overlain by a third layer—an inner silicone jacket. The fourth layer, meanwhile, is a heat-treated woven fiberglass mesh. Lastly, a composite insulating material is used as the fifth protective wire layer. While asbestos was formerly used for wire insulations, it was eventually banned because of the health hazard it brings.

Later on, more resilient insulating materials such as silicone have replaced asbestos. Today, silicone outer jackets serve as the outermost layer of ignition wires. This layer is also known as the wire cover boot. Unlike other layers, this layer can be easily replaced or reconstructed by aftermarket counterparts such as the Taylor Cable wire cover boot. A wire cover boot protects the ignition wires from mechanical abrasions. Usually, this layer comes printed with the wire’s brand name. For instance, the Taylor Cable is printed on the Taylor Cable wire cover boot. Being the outermost layer, it is often in direct contact with hot engine surfaces and other ignition components, so it is crafted to be heat resistant. Its insulating material even has a patented formulation. Old and brittle outer wire covers could easily melt under extreme engine heat. Aside from compromising ignition performance, they could cause short circuiting. Thankfully, aftermarket counterparts of OEM wire boots are conveniently available to replace defective parts. Direct-fit and OEM quality wire cover boot replacements offer a cost-effective solution to reconstructing stock wires. And when choosing replacements, why must you compromise product quality when the Taylor Cable wire cover boot is available here at Car Parts Wholesale? Get it with the convenience of online shopping.