Ignition Coil and Spark Plug Wire Set for Chevy GMC 4.8L

Summary

• ‌This 8-piece square ignition coil and spark plug wire set is a complete, direct-fit solution. The kit includes 8 new ignition coils, 8 new spark plugs, and 8 corresponding plug wires. Replaces factory part numbers such as UF271, 12556893, 3859078, 41-962, and 19299585.
• Designed for specific Chevrolet, GMC, Cadillac, and Hummer vehicles with 4.8L, 5.3L, 6.0L, and 8.1L engines (e. G., Silverado 1500, Sierra 1500, Tahoe, Yukon, Escalade). Please verify your engine uses the UF271 SQUARE coil shape, not the ROUND type, by checking your engine compartment before ordering.
• Engineered with high-grade materials, including pure copper coils and epoxy resin insulation. Rigorously tested for superior heat resistance, corrosion protection, and reliable spark energy output. This design ensures stable ignition, reduces misfires, and promotes better engine performance and fuel efficiency.
• Features 8mm wires with a fiberglass braid and carbon-impregnated core for excellent conductivity and insulation. They provide high-temperature resistance and help prevent current leakage, ensuring a strong, consistent spark is delivered to each plug for optimal combustion.
• For best results and to prevent common issues like hard starting or engine misfires, we recommend replacing the ignition coils and spark plugs simultaneously. This complete set ensures all components are matched and work in harmony for a smooth-running engine.