High-Performance Ignition Coils & Spark Plug Wires
Precision-engineered for optimal ignition, these 8pc D581 square coils deliver ultra-high voltage output for consistent spark power. Built with durable epoxy resin and copper windings for superior heat resistance up to 200°C.
Direct Fit & Reliable Compatibility
Designed for GMC Silverado 1500/2500/3500 with 4.8L, 5.3L, or 6.0L engines. OEM-equivalent (3859078) for seamless installation—no modifications needed.
Enhanced Fuel Efficiency & Engine Response
Reduces misfires and improves combustion efficiency, ideal for towing, off-roading, or daily driving. Includes high-silicone spark plug wires for maximum conductivity.
Industrial-Grade Durability
CNC-machined connectors and reinforced boots prevent corrosion and cracking, extending lifespan even under extreme conditions.
Wholesale Advantage
Exclusive bulk pricing for auto shops and resellers. Globally sourced, rigorously tested—lowest price guaranteed.