Ignition Coil & Iridium Spark Plugs & Wire for Cadillac Escalade ESV EXT (2002-2006) 5.3L 6.0L
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High-Output Ignition Coil, Wire, and Iridium Plug Kit for 2002-2006 Cadillac Escalade
Direct-Fit Ignition Overhaul: Replaces fatigued factory ignition components to eliminate secondary ignition breakdown, cylinder misfires, and spark blowout under load.
The Stock Escalade Ignition Thermal Breakdown
Factory GM Gen III Vortec ignition systems endure intense thermal cycling due to coil-on-plug bracket proximity to the exhaust manifolds on the GMT800 chassis. Over time, heat soak degrades the factory coil epoxy encapsulation, creating microscopic insulation fissures that bleed secondary kV output directly to ground. Simultaneously, aging OEM carbon-core ignition leads suffer internal resistor core fractures and jacket hardening, raising resistance well past factory tolerances. Paired with eroded factory spark plug electrode gaps, the compromised system triggers intermittent low-load misfires (P0300), hesitations under heavy acceleration, and unburned fuel contamination across the catalyst substrate.
The Engineering Solution
This complete tune-up kit restores spark energy and ignition timing stability. The round-body UF262/D585-style coils feature high-temp vacuum-poured epoxy potting that seals primary and secondary copper windings against heat degradation and moisture ingress. Paired with 8mm high-dielectric silicone leads equipped with stranded copper cores and stainless heat-shielded boots, internal conductor resistance is sharply reduced. The included 41-962 iridium-tipped spark plugs maintain precise gap dimensions under sustained cylinder pressures, ensuring a consistent flame kernel for complete combustion.
Technical Specifications
| Fitment | 2002-2006 Cadillac Escalade |
| Engine / Chassis | 5.3L LM7 & 6.0L LQ9 Vortec V8 / GMT800 |
| Stock Output | 285-345 hp / 325-380 lb-ft (Approx) |
| Part Number | UF262, D585, 41-962, 19299585, 9748GG |
Compatibility
- 2002-2005 Cadillac Escalade (Base) 5.3L V8 (Round Coils)
- 2002-2005 Cadillac Escalade (Base) 6.0L V8 (Round Coils)
- 2002-2006 Cadillac Escalade ESV 6.0L V8 (Round Coils)
- 2002-2006 Cadillac Escalade EXT 6.0L V8 (Round Coils)
The Cadillac Towing & Heavy-Duty Caliber
Heavy GMT800 SUVs demand peak ignition performance to manage steep grades and heavy towing loads without hesitation. This ignition overhaul ensures steady combustion efficiency, throttle response, and reliability across all operating temperatures.
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