Ignition Coil & Iridium Spark Plugs & Wire for Cadillac Escalade ESV (2017-2020) 6.2L V8

High-Output Ignition Coil & Iridium Spark Plug Kit for 2017-2020 Cadillac Escalade

What it does: Replaces degraded factory ignition components with higher-voltage coils, 8mm shielded wires, and iridium plugs to eliminate misfires and restore optimal combustion efficiency.

The Stock Escalade Ignition Shortcomings

The factory ignition system on the 6.2L L86 V8 is highly susceptible to thermal degradation over high-mileage heat cycles. Prolonged exposure to engine bay temperatures compromises the dielectric integrity of the OE coil epoxy and wire insulation. This insulation breakdown leads to voltage leaks, resulting in inconsistent spark delivery, cylinder misfires, and hesitation under heavy load, and reduced fuel economy. Furthermore, as factory spark plugs wear, the spark gap increases. This forces the standard ignition coils to work significantly harder to bridge the gap, which accelerates their eventual failure and often triggers check engine light (CEL) circuit malfunction codes.

The Engineering Solution

This comprehensive ignition overhaul addresses OE failure points by utilizing upgraded materials for superior thermal stability and electrical conductivity. The enhanced coil packs deliver 20% more energy than standard units, stepping up a 12-volt primary charge to a robust 26,000-volt maximum secondary output. Built with premium copper internals and high-temperature resistant silicone boots, these epoxy-filled coils resist heat soak, vibration, and corrosion. Paired with 8mm high-density spark plug wires featuring protective heat shields and premium Iridium spark plugs (41-114), this system ensures a powerful, stable spark. Iridium’s extremely high melting point is designed to ensure a consistent spark gap over time, maximizing combustion efficiency, mitigating pre-ignition risks, and restoring peak engine power and smooth idling characteristics.

Technical Specifications

Compatibility

• 2017 Cadillac Escalade 6.2L V8
• 2017 Cadillac Escalade ESV 6.2L V8
• 2018 Cadillac Escalade 6.2L V8
• 2018 Cadillac Escalade ESV 6.2L V8
• 2019 Cadillac Escalade 6.2L V8
• 2019 Cadillac Escalade ESV 6.2L V8
• 2020 Cadillac Escalade 6.2L V8
• 2020 Cadillac Escalade ESV 6.2L V8

The Cadillac Caliber

Restoring ignition efficiency ensures your Escalade maintains the reliable torque output required for heavy towing and smooth highway cruising, without the nuisance of misfires or rough idle.

Common Questions

Will this ignition kit fit my 2017-2020 Cadillac Escalade or Escalade ESV?
Yes, this kit is a direct fit for 2017-2020 Cadillac Escalade and Escalade ESV models equipped with the 6.2L L86 V8 engine.

What is included in the box?
The kit includes high-output ignition coils (UF742), iridium spark plugs (41-114), and 8mm high-density shielded spark plug wires (748UU) for a complete V8 ignition refresh.

How do these coils compare to the factory Escalade coils?
These epoxy-filled coils feature copper internals and high-temperature silicone boots, delivering 20% more energy than standard units with up to 26,000 volts of secondary output.

What OE coil part numbers does this kit replace?
The UF742 round-style ignition coils in this kit are a direct replacement for factory OE part numbers 12658183 and 12621750 on the 2017-2020 6.2L L86 V8.

Do the spark plug wires include heat protection?
Yes, the 8mm high-density spark plug wires come with protective heat shields to guard against engine bay heat soak and voltage leaks.