Ignition Coil & Iridium Spark Plugs & Wire for Chevrolet Tahoe (2000-2006) 4.8L 5.3L

High-Output Ignition Coil, Iridium Spark Plug, and Wire Service Kit for 2000-2006 Chevrolet Tahoe

What it Does or Who is it for: Complete secondary ignition overhaul engineered to eliminate dielectric breakdown, high-RPM misfires, and spark blowout under heavy hauling loads.

The Stock Tahoe Ignition Vulnerabilities

Factory ignition assemblies on the GMT800 platform endure extreme heat soak directly above the exhaust manifolds. Over time, original factory coils suffer internal insulation degradation, while standard factory plug wires develop high internal resistance and micro-cracking along the core. This results in voltage leakage, erratic idle, loss of low-end torque, and unburned fuel delivery that degrades fuel economy and strains catalytic converters.

The Engineering Solution

This complete tune-up package utilizes heavy-duty UF262/D585-style round coils potted in high-dielectric epoxy to prevent internal arcing. Paired with stranded copper-core 8mm silicone wires insulated by stainless-steel heat-shield terminals, this setup ensures minimal resistance and maximum EMI suppression. Premium fine-wire iridium spark plugs lower firing voltage requirements, providing immediate flame-front kernel propagation and consistent combustion under full load.

Technical Specifications

Compatibility

• 2000-2006 Chevrolet Tahoe 4.8L V8 (Round UF262/D585 Coil Type Only)
• 2000-2006 Chevrolet Tahoe 5.3L V8 (Round UF262/D585 Coil Type Only)

The Chevrolet Durability Standard

Engineered to handle the demanding thermal loads of continuous towing, heavy payloads, and severe-duty cycling without spark degradation or misfire DTCs.