Walker Products 928-4115-4 Thunderspark Ignition Coil Set Qty - 4

Each coil in this set is designed to receive a timing signal from the engine control module and deliver a precise high-voltage pulse to the spark plug, ensuring complete ignition of the air-fuel mixture in every cylinder.

Key Features:

• OE-Level Performance: Engineered and rigorously tested to meet or exceed original equipment specifications for voltage output, resistance, and inductive response
• Premium Construction: Built with high-dielectric epoxy, quality copper windings, and heat-resistant housings to withstand extreme engine bay temperatures and continuous electrical demands
• Direct-Fit Design: Connects directly to factory wiring harnesses with no modifications required, minimizing installation time and vehicle downtime
• Improved Fuel Efficiency: Delivers a consistent, dependable spark to promote optimal combustion, helping reduce emissions and improve fuel economy
• Durability Tested: Designed to resist vibration, thermal cycling, and the harsh operating conditions of modern engines

Walker Products has been supplying the automotive aftermarket since 1946 and is one of the largest privately owned manufacturers of fuel system components and engine sensors. All Walker ignition coils are manufactured in ISO 9001-certified facilities to ensure consistent quality and long-term reliability. The 928-4115-4 is an ideal replacement for worn, cracked, or misfiring coils and is suited for coil-on-plug (COP) ignition system applications.