High Performance Ignition Coil for Cadillac Escalade ESV EXT (2007-2014) 6.2L

High-Output UF414 Ignition Coils for 2007-2014 Cadillac Escalade (L92/L94 / GMT900)

What it does: Replaces factory ignition coils with high-output copper-wound units to eliminate high-RPM misfires and optimize combustion efficiency under heavy load.

The Stock Escalade Ignition Degradation

The factory GMT900 Escalade ignition coils are notorious for degrading over time due to extreme under-hood temperatures and continuous thermal cycling. The OEM coil packs utilize standard-grade internal windings and basic epoxy potting compounds that become brittle over 80,000 to 100,000 miles. This degradation creates micro-cracks within the coil housing, allowing moisture intrusion and internal voltage leaks. The result is a weak spark, intermittent hesitation under load (especially when towing), reduced fuel economy, and eventual P0300-series misfire codes. Furthermore, the factory resistance creates a bottleneck during high-load scenarios, restricting the voltage output needed to fully ignite the air-fuel mixture in the large 6.2L combustion chambers.

The Engineering Solution

These upgraded UF414 replacement ignition coils are engineered to exceed factory specifications by utilizing premium materials and construction techniques. The internal primary and secondary bobbins are wound with high-conductivity copper wiring, significantly lowering internal resistance and increasing total spark energy output. High-dielectric epoxy potting compound is injected to secure the internals, drastically improving vibration resistance and shielding the coils against severe engine bay heat soak. Additionally, the boots feature high-grade silicone construction to ensure a weather-tight seal against the spark plug ceramic, eliminating tracking and flashover. This upgraded architecture guarantees a robust spark throughout the entire RPM band, restoring factory power, stabilizing idle quality, and preventing spark blowout.

Technical Specifications

Compatibility

• 2007-2014 Cadillac Escalade 6.2L V8
• 2007-2014 Cadillac Escalade ESV 6.2L V8
• 2007-2013 Cadillac Escalade EXT 6.2L V8

The Cadillac GMT900 Durability

Engineered for full-size truck architectures, these coils ensure heavy-duty reliability, consistent towing power, and stable ignition operation under heavy load conditions without triggering check engine lights.