Iridium Spark Plugs & Wires Kit [3186 & M8-48322] for Chevy Silverado Suburban Avalanche GMC Yukon Sierra 5.3L 6.0L 6.2L, Replaces OEM 12680072

Iridium Spark Plugs & Wires Kit [3186 & M8-48322] for Chevy Silverado Suburban Avalanche GMC Yukon Sierra 5.3L 6.0L 6.2L, Replaces OEM 12680072

Precision Engineered for Maximum Compatibility:Direct replacement for 2007-2014 Chevy Silverado/Suburban/Avalanche, GMC Sierra/Yukon, Cadillac Escalade & more. Covers 5.3L/6.0L/6.2L engines. Matches OEM specs: 12680072, 12621258, SP432, 41-110, M8-48322 & 30+ other part numbers. Complete Kit, Zero Hassle Installation:Includes 8x Iridium Spark Plugs (3186) + 8x High-Performance Wires (M8-48322). Pre-assembled connectors & anti-corrosion terminals ensure tool-free installation in under 30 minutes. Durability, Tested to Extreme Conditions:Triple-layer protection: Heat-resistant silicone jacket (500°F rating) + fiberglass core + carbon fiber electrodes. Proven 100K miles lifespan with 30% stronger ignition vs copper plugs. Boost Fuel Efficiency & Engine Response:Iridium platinum tip technology reduces misfires by 70% and improves acceleration. Lab-tested to restore factory-level MPG on 2007-2014 GM trucks/SUVs. 100% Risk-Free Purchase:Backed by 5-year warranty against corrosion & performance failure. Includes lifetime expert support via email/chat for compatibility verification. High-Performance Ignition Upgrade with Anti-Corrosion Boots - Compatible with 2007-2018 Models