ACDelco Gold spark plug wire set 9718Q (28.2" length) high-temp silicone & corrosion-resistant terminals

The ACDelco Gold 9718Q (88862381) Spark Plug Wire Set is a premium replacement harness built with high-temperature silicone and fiberglass to restore reliable spark delivery and engine performance.

Designed as an aftermarket upgrade that mirrors OE fit and function, this ACDelco Gold wire set replaces worn or damaged ignition leads on compatible domestic and import vehicles. The assembly combines a robust conductor, durable silicone insulator, and corrosion-resistant terminals to help maintain consistent spark transmission and protect against heat, moisture, and arcing. With a 28.2-inch wire length and coil retainer, it’s engineered for straightforward installation and long-term durability.

What makes this wire set durable under engine stress?

The ACDelco Gold 9718Q uses fiberglass reinforcement and a thick, high-dielectric silicone jacket that resists heat and cracking. Terminal materials and design reduce corrosion and maintain secure connections even in harsh conditions.

• Fiberglass strength members embedded in the conductor for tensile durability
• High-temperature silicone insulator that resists heat degradation
• Corrosion-resistant terminals for long-lasting electrical contact
• Coil retainer minimizes micro-arcing and wire movement

How does this set help improve ignition reliability?

Consistent spark delivery depends on conductor quality, insulation, and terminal fit — all addressed in this kit. The combination of optimized conductor diameter and material selection reduces energy loss and helps preserve strong, continuous sparks under load.

• Conductor size and composition designed for efficient energy transfer
• Insulator with high dielectric strength to prevent leakage
• Boot shapes matched to plugs and distributor/coil for secure seals
• 28.2-inch length specified for correct routing and reduced strain

Is this ACDelco set easy to install and fit well?

The wires are manufactured to match OE fit, so they route and connect like the original harness. Boots and terminal geometry are formed to provide water-tight seals and simple hand installation without special tools in most cases.

• Boot profiles designed for proper plug and coil seat
• Terminals shaped for easy retention and removal during service
• Length and diameter chosen to mirror factory harness routing
• Coil retainer included to secure wire-to-coil interface

Who is this for?

This ACDelco Gold wire set is intended for vehicle owners and technicians replacing aging or damaged ignition wires on compatible GM and many domestic/import models. It’s a suitable aftermarket choice when you want OE-style fit, resistance to heat and moisture, and improved long-term spark stability without modifying the ignition system.